笔记-springboot-01-创建一个简单的boot程序

最新推荐文章于 2024-10-07 22:41:46 发布

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一、首先准备一些工具，使用的是idea和，maven管理工具，springboot使用2.0.2版本

父pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>springboot-demo</groupId>
    <artifactId>springboot-demo</artifactId>
    <version>1.0.0</version>
    <packaging>pom</packaging>

    <modules>
        <module>springboot-1-simple-web</module>
    </modules>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.2.RELEASE</version>
    </parent>


    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.44</version>
        </dependency>

    </dependencies>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.0</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

建一个springboot-1-simple-web模块

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>springboot-demo</artifactId>
        <groupId>springboot-demo</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <packaging>jar</packaging>
    <artifactId>springboot-1-simple-web</artifactId>

</project>

子模块已经集成父模块了，所以不需要写springboot的依赖包.

在springboot-1-simple-web模块中建一个启动类：

package com.cn.main;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * Created by chenyuncong on 2018/5/21.
 */
@SpringBootApplication
public class SimpleApplication {

    public static void main(String[] args) {
        SpringApplication.run(SimpleApplication.class, args);
    }
}

在建一个Controller：

package com.cn.main.web;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.HashMap;
import java.util.Map;
/**
 * Created by chenyuncong on 2018/5/21.
 */
@RestController
@RequestMapping("test")
public class TestController {

    @RequestMapping("getInfo")
    public Map<String,Object> getInfo(){
        Map<String,Object> map=new HashMap<>();
        map.put("name","小明同学");
        map.put("sex","男");
        return map;
    }
}

然后启动SimpleApplication类，在浏览器输入 http://127.0.0.1:9988/test/getInfo，返回结果

{

sex: "男",

name: "小明同学"

}

这就说明已经好了，返回一个json数据的接口，笔记到此结束了