SpringBoot2.0 整合 Swagger2 ,構建接口管理界面

本文源碼：GitHub·點這裏 || GitEE·點這裏

1、Swagger2簡介

一、Swagger2優勢

整合到Spring Boot中，構建強大RESTful API文檔。省去接口文檔管理工做，修改代碼，自動更新，Swagger2也提供了強大的頁面測試功能來調試RESTful API。

二、Swagger2經常使用註解

Api：修飾整個類，描述Controller的做用
ApiOperation：描述一個類的一個方法，或者說一個接口
ApiParam：單個參數描述
ApiModel：用對象來接收參數
ApiProperty：用對象接收參數時，描述對象的一個字段
ApiResponse：HTTP響應其中1個描述
ApiResponses：HTTP響應總體描述
ApiIgnore：使用該註解忽略這個API
ApiError ：發生錯誤返回的信息
ApiImplicitParam：一個請求參數
ApiImplicitParams：多個請求參數

2、與SpringBoot2.0 整合

一、核心依賴

spring-boot：2.1.3.RELEASE
swagger：2.6.1

二、Swagger2 配置

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;
/**
 * Swagger 配置文件
 */
@Configuration
public class SwaggerConfig {
    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.swagger.two"))
                .paths(PathSelectors.any())
                .build();
    }
    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("SpringBoot利用Swagger構建API文檔")
                .description("使用RestFul風格, 建立人：知了一笑")
                .termsOfServiceUrl("https://github.com/cicadasmile")
                .version("version 1.0")
                .build();
    }
}

三、啓動類添加註解

@EnableSwagger2
@SpringBootApplication
public class SwaggerApplication {
    public static void main(String[] args) {
        SpringApplication.run(SwaggerApplication.class,args) ;
    }
}

四、啓動效果圖

3、增刪改查案例

一、添加用戶

(1)、代碼塊

@ApiOperation(value="添加用戶", notes="建立新用戶")
@ApiImplicitParam(name = "user", value = "用戶詳細實體user", required = true, dataType = "User")
@RequestMapping(value = "/addUser", method = RequestMethod.POST)
public ResponseEntity<JsonResult> addUser (@RequestBody User user){
    JsonResult result = new JsonResult();
    try {
        users.put(user.getId(), user);
        result.setResult(user.getId());
        result.setStatus("ok");
    } catch (Exception e) {
        result.setResult("服務異常");
        result.setStatus("500");
        e.printStackTrace();
    }
    return ResponseEntity.ok(result);
}

(2)、效果圖

二、用戶列表

(1)、代碼塊

@ApiOperation(value="用戶列表", notes="查詢用戶列表")
@RequestMapping(value = "/getUserList", method = RequestMethod.GET)
public ResponseEntity<JsonResult> getUserList (){
    JsonResult result = new JsonResult();
    try {
        List<User> userList = new ArrayList<>(users.values());
        result.setResult(userList);
        result.setStatus("200");
    } catch (Exception e) {
        result.setResult("服務異常");
        result.setStatus("500");
        e.printStackTrace();
    }
    return ResponseEntity.ok(result);
}

(2)、效果圖

三、用戶查詢

(1)、代碼塊

@ApiOperation(value="用戶查詢", notes="根據ID查詢用戶")
@ApiImplicitParam(name = "id", value = "用戶ID", required = true, dataType = "Integer", paramType = "path")
@RequestMapping(value = "/getUserById/{id}", method = RequestMethod.GET)
public ResponseEntity<JsonResult> getUserById (@PathVariable(value = "id") Integer id){
    JsonResult result = new JsonResult();
    try {
        User user = users.get(id);
        result.setResult(user);
        result.setStatus("200");
    } catch (Exception e) {
        result.setResult("服務異常");
        result.setStatus("500");
        e.printStackTrace();
    }
    return ResponseEntity.ok(result);
}

(2)、效果圖

四、更新用戶

(1)、代碼塊

@ApiOperation(value="更新用戶", notes="根據Id更新用戶信息")
@ApiImplicitParams({
        @ApiImplicitParam(name = "id", value = "用戶ID", required = true, dataType = "Long",paramType = "path"),
        @ApiImplicitParam(name = "user", value = "用戶對象user", required = true, dataType = "User")
})
@RequestMapping(value = "/updateById/{id}", method = RequestMethod.PUT)
public ResponseEntity<JsonResult> updateById (@PathVariable("id") Integer id, @RequestBody User user){
    JsonResult result = new JsonResult();
    try {
        User user1 = users.get(id);
        user1.setUsername(user.getUsername());
        user1.setAge(user.getAge());
        users.put(id, user1);
        result.setResult(user1);
        result.setStatus("ok");
    } catch (Exception e) {
        result.setResult("服務異常");
        result.setStatus("500");
        e.printStackTrace();
    }
    return ResponseEntity.ok(result);
}

(2)、效果圖

五、刪除用戶

(1)、代碼塊

@ApiOperation(value="刪除用戶", notes="根據id刪除指定用戶")
@ApiImplicitParam(name = "id", value = "用戶ID", required = true, dataType = "Long", paramType = "path")
@RequestMapping(value = "/deleteById/{id}", method = RequestMethod.DELETE)
public ResponseEntity<JsonResult> deleteById (@PathVariable(value = "id") Integer id){
    JsonResult result = new JsonResult();
    try {
        users.remove(id);
        result.setResult(id);
        result.setStatus("ok");
    } catch (Exception e) {
        result.setResult("服務異常");
        result.setStatus("500");
        e.printStackTrace();
    }
    return ResponseEntity.ok(result);
}

(2)、效果圖

4、源代碼

GitHub·地址
https://github.com/cicadasmile/middle-ware-parent
GitEE·地址
https://gitee.com/cicadasmile/middle-ware-parent