Intellij IDEA 2017 创建Spring Maven项目

本文详细介绍了如何在IDEA中创建SpringMaven项目,并配置Spring依赖及必要的XML配置文件。此外,还提供了启动Jetty服务器的方法。

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例子使用的IDEA版本是2017.1,网上可以找到破解码。

1.新建Maven项目


新建Maven项目,如图选择。
如图选择

接下来的填写GroupId、AtifactID,按照自己想法起个名字就好。
这里写图片描述

选择Maven仓库,按照默认的,直接点next。
这里写图片描述

填写项目名,起个名儿吧。
这里写图片描述
点击Finish,就创建了一个Maven项目。

2.添加Spring依赖


打开pom.xml文件。

2.1.添加版本号配置

<properties>
    <spring.version>4.3.0.RELEASE</spring.version>
    <javax.servlet.version>2.5</javax.servlet.version>
</properties>

2.2.dependencies添加如下依赖

<dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
      <type>jar</type>
    </dependency>
    <dependency>
      <artifactId>spring-core</artifactId>
      <groupId>org.springframework</groupId>
      <type>jar</type>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <artifactId>spring-jdbc</artifactId>
      <groupId>org.springframework</groupId>
      <type>jar</type>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <artifactId>spring-tx</artifactId>
      <groupId>org.springframework</groupId>
      <type>jar</type>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>${spring.version}</version>
    </dependency>


    <!--jackson dependencies jar-->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.8.5</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.8.5</version>
    </dependency>

    <!--servlet dependencies jar-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>${javax.servlet.version}</version>
      <scope>provided</scope>
    </dependency>

    <!-- log4j -->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-api</artifactId>
      <version>2.6.2</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>2.6.2</version>
    </dependency>

    <!-- JsonObject -->
    <dependency>
      <groupId>net.sf.json-lib</groupId>
      <artifactId>json-lib</artifactId>
      <version>2.3</version>
      <classifier>jdk15</classifier>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.6.6</version>
    </dependency>

    <!-- JSP and JSTL SUPPORT -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>

    <!-- commons-codec -->
    <dependency>
      <groupId>commons-codec</groupId>
      <artifactId>commons-codec</artifactId>
      <version>1.4</version>
    </dependency>

  </dependencies>

3.配置ApplicationContext-context.xml


在resources目录下,创建spring目录,加入ApplicationContext-context.xml文件,内容如下:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:task="http://www.springframework.org/schema/task"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd">

<context:component-scan base-package="your.package">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>

</beans>

其中,base-package=”your.package”根据自己的项目包名写,比如com.example。

4.配置springmvc-servlet.xml和web.xml


在WEB-INF目录下,新建springmvc-servlet.xml:
把package=”com.example.controller”替换成你的controller路径即可。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                           http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
                           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置注解驱动 -->
    <mvc:annotation-driven/>

    <!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 -->
    <context:component-scan base-package="com.example.controller"/>

    <!-- 对模型视图名称的解析,即在模型视图名称添加前后缀 使用JSP-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

</beans>

然后修改web.xml文件为如下:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
         http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
         version="3.0" metadata-complete="true">

    <display-name>tc-usermodel</display-name>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:/spring/ApplicationContext-context.xml</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>

    <filter>
        <filter-name>HiddenHttpMethodFilter</filter-name>
        <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <filter-mapping>
        <filter-name>HiddenHttpMethodFilter</filter-name>
        <servlet-name>springmvc</servlet-name>
    </filter-mapping>



    <!-- Handles all requests into the application -->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                /WEB-INF/springmvc-servlet.xml
            </param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

至此,新建Spring Maven项目就大功告成了。下面是代码写法。

5.项目目录结构


这是一个简洁的目录结构。
这里写图片描述

6.一个Spring http接口的最简洁例子


控制器Controller写法

@Controller
@RequestMapping(value = "/test")
public class MainController {

    //自动实例化
    @Autowired
    private UserModelService userModelService;


    //这个例子返回一个接口,因为有@ResponseBody注解
    @RequestMapping(value = "/model",method = RequestMethod.GET,produces = "application/json;charset=UTF-8")
    @ResponseBody
    public UserModel getUserModel(UserModelParams params) {
        UserModel userModel = userModelService.getUserModel(params);
        return userModel;
    }

    //这个例子跳转到 hello.jsp页面,因为没有@ResponseBody注解
    @RequestMapping(value = "/jspview",method = RequestMethod.GET)
    public String getUserjsp(UserModelParams params) {
        return "hello";
    }
}

java接口UserModelService:

public interface UserModelService {

    String getUserModel(UserModelParams params);

    JSONArray getAllUserModel();

}

具体业务写在UserModelServiceImpl ,注意要继承UserModelService 接口。

@Service("UserModelServiceImpl")
public class UserModelServiceImpl implements UserModelService {
    @Override
    public JSONArray getAllUserModel(){                 
        JsonArray jsonArray = new JsonArray();
        jsonArray.add("name","jack");
        jsonArray.add("age",123);
        return jsonArray;
    }

}

7.启动服务


服务器我推荐使用jetty插件,直接在maven中配置就好,非常方便。

<build>
    <finalName>springtest</finalName>
    <plugins>

       <!--maven compiler plugin -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>1.7</source>
          <target>1.7</target>
        </configuration>
      </plugin>

    <!--jetty plugin -->
      <plugin>
        <groupId>org.eclipse.jetty</groupId>
        <artifactId>jetty-maven-plugin</artifactId>
        <version>9.1.0.v20131115</version>
      </plugin>

    </plugins>
  </build>

在IDEA中最右侧,双击jetty:run启动服务
这里写图片描述

然后在浏览器中输入:http://localhost:8080/test/model ,得到响应。
这里写图片描述

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