spring boot实战一

Spring Boot 快速入门

最新推荐文章于 2025-10-26 16:57:51 发布

转载最新推荐文章于 2025-10-26 16:57:51 发布 · 893 阅读

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本文介绍 Spring Boot 的基本用法及快速启动方法，包括如何使用 Maven 构建 Spring Boot 工程，并通过示例展示 @SpringBootApplication 注解的作用。

spring boot 博客内容规划

spring boot 基本用法
自动配置
技术集成
性能监控
源码解析

spring boot 功能强大，后面会细细道来。

第一个案例

工程的构建

构建spring boot工程一般采用两种方式 gradle 、maven;相对于maven的pom配置gradle 更加简单，有兴趣的同学可以去学习下gradle，这里采用maven。

创建一个maven工程，对应的pom.xml文件：

<code class="hljs xml has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">
    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">parent</span>></span>
        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">groupId</span>></span>org.springframework.boot<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">groupId</span>></span>
        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">artifactId</span>></span>spring-boot-starter-parent<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">artifactId</span>></span>
        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">version</span>></span>1.2.4.RELEASE<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">version</span>></span>
    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">parent</span>></span>

    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">properties</span>></span>
        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">project.build.sourceEncoding</span>></span>UTF-8<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">project.build.sourceEncoding</span>></span>
    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">properties</span>></span>

    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">dependencies</span>></span>

        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">dependency</span>></span>
            <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">groupId</span>></span>org.springframework.boot<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">groupId</span>></span>
            <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">artifactId</span>></span>spring-boot-starter-web<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">artifactId</span>></span>
        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">dependency</span>></span>
    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">dependencies</span>></span>

    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">build</span>></span>
        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">plugins</span>></span>
            <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">plugin</span>></span>
                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">groupId</span>></span>org.springframework.boot<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">groupId</span>></span>
                <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">artifactId</span>></span>spring-boot-maven-plugin<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">artifactId</span>></span>
            <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">plugin</span>></span>
        <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">plugins</span>></span>
    <span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"></<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">build</span>></span>
</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li></ul>

版本采用1.2.4,非官网最新版，但属于稳定版本

创建 Application.Java

<code class="hljs java has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">package</span> com.u51.lkl.springboot;

<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> org.springframework.boot.SpringApplication;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> org.springframework.boot.autoconfigure.SpringBootApplication;

<span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@SpringBootApplication</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">Application</span> {</span>
    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">static</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span> <span class="hljs-title" style="box-sizing: border-box;">main</span>(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li></ul>

运行main方法

<code class="hljs fsharp has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.4</span>.RELEASE)

<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">35.484</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] com.u51.lkl.springboot.Application       : Starting Application on mac.local <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">with</span> PID <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> (/Users/liaokailin/code/github/blog-springboot/target/classes started by lkl <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> /Users/liaokailin/code/github/blog-springboot)
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">35.561</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">328908</span>cd: startup date [Tue Aug <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">35</span> CST <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>]; root <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">of</span> context hierarchy
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">36.395</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] o.s.b.f.s.DefaultListableBeanFactory     : Overriding bean definition <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> bean 'beanNameViewResolver': replacing [Root bean: <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">null</span>]; scope=; <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">abstract</span>=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">false</span>; lazyInit=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">false</span>; autowireMode=<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">3</span>; dependencyCheck=<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; autowireCandidate=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">true</span>; primary=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">false</span>; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">null</span>; destroyMethodName=(inferred); defined <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span>]] <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">with</span> [Root bean: <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">null</span>]; scope=; <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">abstract</span>=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">false</span>; lazyInit=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">false</span>; autowireMode=<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">3</span>; dependencyCheck=<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; autowireCandidate=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">true</span>; primary=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">false</span>; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">null</span>; destroyMethodName=(inferred); defined <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span>]]
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">37.404</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">with</span> port(s): <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">8080</span> (http)
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">37.796</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">37.798</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">8.0</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.23</span>
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">37.955</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [ost-startStop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">37.955</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [ost-startStop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2397</span> ms
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">38.813</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [ost-startStop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>] o.s.b.c.e.ServletRegistrationBean        : Mapping servlet: 'dispatcherServlet' <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">to</span> [/]
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">38.818</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [ost-startStop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: 'characterEncodingFilter' <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">to</span>: [/*]
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">38.819</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [ost-startStop-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: 'hiddenHttpMethodFilter' <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">to</span>: [/*]
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">39.075</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">328908</span>cd: startup date [Tue Aug <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">35</span> CST <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>]; root <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">of</span> context hierarchy
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">39.151</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"{[/error],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}"</span> onto <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">39.151</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"{[/error],methods=[],params=[],headers=[],consumes=[],produces=[text/html],custom=[]}"</span> onto <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest)
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">39.180</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">of</span> <span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">type</span> [<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">class</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">org</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">springframework</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">web</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">servlet</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">resource</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">ResourceHttpRequestHandler</span>]</span>
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">39.180</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">of</span> <span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">type</span> [<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">class</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">org</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">springframework</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">web</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">servlet</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">resource</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">ResourceHttpRequestHandler</span>]</span>
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">39.232</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">of</span> <span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">type</span> [<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">class</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">org</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">springframework</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">web</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">servlet</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">resource</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">ResourceHttpRequestHandler</span>]</span>
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">39.326</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> JMX exposure on startup
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">39.430</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">8080</span> (http)
<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2015</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">08</span>-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">25</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">22</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">53</span>:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">39.433</span>  INFO <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">554</span> --- [           main] com.u51.lkl.springboot.Application       : Started Application <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4.829</span> seconds (JVM running <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">5.238</span>)
</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li></ul>

spring boot已经启动，内嵌tomcat容器，监听为8080端口

就是这么简单，一个spring boot 的程序就创建了。

@SpringBootApplication 注解

SpringBootApplication注解源码如下：

<code class="hljs java has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@Target</span>(ElementType.TYPE)
<span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@Retention</span>(RetentionPolicy.RUNTIME)
<span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@Documented</span>
<span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@Inherited</span>
<span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@Configuration</span>
<span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@EnableAutoConfiguration</span>
<span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@ComponentScan</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> @<span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">interface</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">SpringBootApplication</span> {</span>

    <span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/**
     * Exclude specific auto-configuration classes such that they will never be applied.
     *<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @return</span> the classes to exclude
     */</span>
    Class<?>[] exclude() <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">default</span> {};

}</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li></ul>

@Configuration : 表示Application作为sprig配置文件存在
@EnableAutoConfiguration: 启动spring boot内置的自动配置
@ComponentScan : 扫描bean，路径为Application类所在package以及package下的子路径，这里为com.u51.lkl.springboot，在spring boot中bean都放置在该路径已经子路径下。

构建REST工程

上面的操作连个HelloWorld都没有出来，远远满不足我们的需求。

创建一个package：com.u51.lkl.springboot.controller 保存controller

构建 HelloWorldController.java

<code class="hljs avrasm has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"> package <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">com</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.u</span>51<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.lkl</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.springboot</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.controller</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span>

import org<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.springframework</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.web</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.bind</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.annotation</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.PathVariable</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span>
import org<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.springframework</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.web</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.bind</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.annotation</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.RequestMapping</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span>
import org<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.springframework</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.web</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.bind</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.annotation</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.RequestMethod</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span>
import org<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.springframework</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.web</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.bind</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.annotation</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.ResponseBody</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span>
import org<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.springframework</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.web</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.bind</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.annotation</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.RestController</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span>

@RestController
@RequestMapping(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"/springboot"</span>)
public class HelloWorldController {

    @RequestMapping(value = <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"/{name}"</span>, method = RequestMethod<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.GET</span>)
    public String sayWorld(@PathVariable(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"name"</span>) String name) {
        return <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"Hello "</span> + name<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span>
    }
}</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li></ul>

再次执行 Application 然后访问http://localhost:8080/springboot/Liaokailin

得到结果：
Hello Liaokailin