新建 Spring Boot 项目

链接 🔗

• Spring Boot 官网

  参考资料

• 本项目所有代码示例：anydong/example-spring-boot

• 代码风格指导：《码出高效：Java 开发手册》 by alibaba/p3c

新建一个空的 Maven 项目

可以使用 Eclipse / Intellij IDEA

编辑 pom.xml 文件

<properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
  <java.version>11</java.version>
</properties>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-parent -->
<parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>2.2.1.RELEASE</version>
</parent>
<dependencies>
  <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
  <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <version>${project.parent.version}</version>
  </dependency>
  <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
  <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <version>${project.parent.version}</version>
    <scope>test</scope>
  </dependency>
</dependencies>
<build>
  <plugins>
    <plugin>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-maven-plugin</artifactId>
    </plugin>
  </plugins>
</build>
<repositories>
  <repository>
    <id>spring-releases</id>
    <url>https://repo.spring.io/libs-release</url>
  </repository>
</repositories>

新建一个 Package

在src/main/java下新建com.anydong.example.springboot Package

添加启动类 Application.java

package com.anydong.example.springboot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
 * Application
 * 
 * @author Where
 * @date 2019-01-31
 */
@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class,args);
    }
}

创建 IndexController.java 控制器文件

package com.anydong.example.springboot.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
/**
 * IndexController
 *
 * @author Where
 * @date 2019-01-31
 */
@RestController
@RequestMapping(produces = "application/json; charset=utf-8")
public class IndexController {
    @RequestMapping(value = "/ping", method = RequestMethod.GET)
    public String ping() {
        return "pong";
    }
}

运行 Application.java 项目创建成功