<!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger2 -->

<dependency>

    <groupId>io.springfox</groupId>

    <artifactId>springfox-swagger2</artifactId>

    <version>2.9.2</version>

</dependency>

<!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger-ui -->

<dependency>

    <groupId>io.springfox</groupId>

    <artifactId>springfox-swagger-ui</artifactId>

    <version>2.9.2</version>

</dependency>

 package com.offcn.springbootdemo2.Config;

 import org.springframework.context.annotation.Bean;

 import org.springframework.context.annotation.Configuration;

 import springfox.documentation.builders.ApiInfoBuilder;

 import springfox.documentation.builders.PathSelectors;

 import springfox.documentation.builders.RequestHandlerSelectors;

 import springfox.documentation.service.ApiInfo;

 import springfox.documentation.spi.DocumentationType;

 import springfox.documentation.spring.web.plugins.Docket;

 import springfox.documentation.swagger2.annotations.EnableSwagger2;

 @Configuration

 @EnableSwagger2

 public class SwaggerConfig {

    @Bean

    public Docket createRestApi(){

       return new Docket(DocumentationType.SWAGGER_2)

             .apiInfo(apiInfo())

             .select().apis(RequestHandlerSelectors.basePackage("com.offcn.springbootdemo2.Controller"))

             .paths(PathSelectors.any()).build();

    }

    private ApiInfo apiInfo() {

       return new ApiInfoBuilder().title("RestFul风格").description("一种好的习惯")

             .termsOfServiceUrl("http://www.baidu.com").contact("java").version("1.0").build();

    }

 }

 package com.offcn.springbootdemo2.Controller;

 import com.offcn.springbootdemo2.Pojo.User;

 import io.swagger.annotations.ApiImplicitParam;

 import io.swagger.annotations.ApiImplicitParams;

 import io.swagger.annotations.ApiOperation;

 import org.springframework.web.bind.annotation.*;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.List;

 @RestController

 @RequestMapping("/user")

 public class UserController {

    private List<User> listUser= Collections.synchronizedList(new ArrayList<User>());

    @GetMapping("/")

    public List<User> getUserList(){

       return listUser;

    }

    /***

     * 新增用户

     * @param user

     * @return

     */

    @PostMapping("/")

    public String createUser(User user) {

       listUser.add(user);

       return "success";

    }

    /***

     * 获取指定id用户信息

     * @param id

     * @return

     */

    @GetMapping("/{id}")

    public User getUser(@PathVariable("id") Integer id) {

       for (User user : listUser) {

          if(user.getId()==id) {

             return user;

          }

       }

       return null;

    }

    /**

     * 更新指定id用户信息

     * @param id

     * @param user

     * @return

     */

    @PutMapping("/{id}")

    @ApiOperation(value="更新指定id用户信息", notes="根据id更新用户信息")

    @ApiImplicitParams({

          @ApiImplicitParam(name = "id", value = "用户ID", required = true, dataType = "Long"),

          @ApiImplicitParam(name = "user", value = "用户详细实体user", required = true, dataType = "User")

    })

    public String updateUser(@PathVariable("id") Integer id,User user) {

       for (User user2 : listUser) {

          if(user2.getId() == id) {

             user2.setName(user.getName());

             user2.setAge(user.getAge());

          }

       }

       return "success";

    }

    /***

     * 删除指定id用户

     * @param id

     * @return

     */

    @DeleteMapping("/{id}")

    @ApiOperation(value="删除指定id用户信息", notes="根据id删除用户信息")

    @ApiImplicitParam(name = "id", value = "用户id", required = true, dataType = "Long")

    public String deleteUser(@PathVariable("id") Integer id) {

       listUser.remove(getUser(id));

       return "success";

    }

 }

<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->

<dependency>

    <groupId>org.projectlombok</groupId>

    <artifactId>lombok</artifactId>

    <version>1.18.10</version>

    <scope>provided</scope>

</dependency>