Spring boot集成swagger2生成接口文檔的全過程

更新時間：2019年09月12日 09:55:46 作者：jstarseven

這篇文章主要給大家介紹了關(guān)于Spring boot集成swagger2生成接口文檔的相關(guān)資料，文中通過示例代碼介紹的非常詳細，對大家學(xué)習(xí)或者使用Spring boot具有一定的參考學(xué)習(xí)價值，需要的朋友們下面來一起學(xué)習(xí)學(xué)習(xí)吧

一、Swagger介紹

Swagger是一個規(guī)范和完整的框架，用于生成、描述、調(diào)用和可視化RESTful風(fēng)格的web服務(wù)。目標是使客戶端和文件系統(tǒng)作為服務(wù)器以同樣的速度來更新文件的方法，參數(shù)和模型緊密集成到服務(wù)器。這個解釋簡單點來講就是說，swagger是一款可以根據(jù)restful風(fēng)格生成的接口開發(fā)文檔，并且支持做測試的一款中間軟件。

二、使用swagger優(yōu)勢

1、對于后端開發(fā)人員來說

不用再手寫Wiki接口拼大量參數(shù)，避免手寫錯誤
對代碼侵入性低，采用全注解的方式，開發(fā)簡單
方法參數(shù)名修改、新增、減少參數(shù)都可以直接生效，不用手動維護
缺點：增加了開發(fā)成本，寫接口還得再寫一套參數(shù)配置

2、對前端開發(fā)來說

后端只需要定義好接口，會自動生成文檔，接口功能、參數(shù)一目了然
聯(lián)調(diào)方便，如果出了問題，直接測試接口，實時檢查參數(shù)和返回值，就可以快速定位是前端還是后端的問題

3、對于測試來說

但對于測試沒有前端界面UI的功能，可以直接用它來測試接口
操作簡單，不用了解具體代碼就可以操作

三、springboot集成swagger使用

1、新建maven項目（結(jié)構(gòu)如下：）

2、配置pom.xml文件

<?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>
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.3.RELEASE</version>
    <relativePath/>
  </parent>
  <groupId>com.dds.sbswagger</groupId>
  <artifactId>sb-swagger</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>sb-swagger</name>
  <description>Demo project for Spring Boot</description>

  <properties>
    <java.version>1.8</java.version>
  </properties>
  <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger2</artifactId>
      <version>2.9.2</version>
    </dependency>
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger-ui</artifactId>
      <version>2.9.2</version>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.6</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </build>
</project>

3、程序啟動類

package com.dds.sbswagger;

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author dds
 */
@SpringBootApplication
@Slf4j
public class SbSwaggerApplication {

  public static void main(String[] args) {
    SpringApplication.run(SbSwaggerApplication.class, args);
    log.info("\n----------------------------------------------------------\n\t" +
        "Application demo is running! Access URLs:\n\t" +
        "swagger-ui: \thttp://127.0.0.1:8080/swagger-ui.html\n\t" +
        "----------------------------------------------------------");
  }

}

4、SwaggerConfig配置類

package com.dds.sbswagger.config;

import io.swagger.annotations.ApiOperation;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.Collections;

/**
 * @author DDS
 * @date 2019/9/10 13:55
 */
@Configuration
@EnableSwagger2
public class SwaggerConfig {
  @Bean
  public Docket api() {
    return new Docket(DocumentationType.SWAGGER_2)
        .select()
        .apis(RequestHandlerSelectors.basePackage("com.dds.sbswagger.controller"))
        //加了ApiOperation注解的類，才生成接口文檔
        .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
        .paths(PathSelectors.any())
        .build()
        .apiInfo(apiInfo());
  }

  private ApiInfo apiInfo() {
    return new ApiInfo(
        "Spring Boot項目集成Swagger實例文檔",
        "我的微信公眾號：大道七哥，歡迎大家關(guān)注。",
        "API V1.0",
        "Terms of service",
        new Contact("大道七哥", "https://www.cnblogs.com/jstarseven/", "jstarseven@163.com"),
        "Apache", "http://www.apache.org/", Collections.emptyList());
  }
}

5、實體類model

package com.dds.sbswagger.model;

import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;

/**
 * @author DDS
 * @date 2019/9/10 13:55
 */
@ApiModel("用戶實體")
@Data
public class User {

  /**
   * 用戶Id
   */
  @ApiModelProperty("用戶id")
  private int id;

  /**
   * 用戶名
   */
  @ApiModelProperty(value = "用戶姓名", example = "zhangdan", required = true)
  private String name;

  /**
   * 用戶地址
   */
  @ApiModelProperty(value = "用戶地址", example = "北京市海淀區(qū)", required = true)
  private String address;

  /**
   * 用戶手機號
   */
  @ApiModelProperty(value = "用戶手機號", example = "15689652367", required = true)
  private String phone;

  /**
   * 用戶年齡
   */
  @ApiModelProperty(value = "用戶年齡", example = "24", required = true)
  private Integer age;

}

6、接口開發(fā)

package com.dds.sbswagger.controller;

import com.dds.sbswagger.model.User;
import io.swagger.annotations.*;
import org.springframework.web.bind.annotation.*;

/**
 * @author DDS
 * @date 2019/9/10 13:55
 */
@RestController
@RequestMapping("/user")
@Api(tags = "用戶相關(guān)接口", description = "提供用戶相關(guān)的Rest API")
public class UserController {

  @PostMapping("/add")
  @ApiOperation(value = "新增用戶接口", notes = "手機號、密碼都是必輸項，年齡隨邊填，但必須是數(shù)字")
  @ApiImplicitParams({
      @ApiImplicitParam(name = "name", value = "用戶名稱", required = true, paramType = "form"),
      @ApiImplicitParam(name = "address", value = "用戶地址", required = true, paramType = "form"),
      @ApiImplicitParam(name = "phone", value = "用戶手機號", required = true, paramType = "form"),
      @ApiImplicitParam(name = "age", value = "用戶年齡", required = true, paramType = "form", dataType = "Integer")
  })
  public boolean addUser(@RequestBody User user) {
    return false;
  }

  @ApiOperation("通過id查找用戶接口")
  @GetMapping("/find/{id}")
  public User findById(@PathVariable("id") int id) {
    return new User();
  }

  @ApiOperation("更新用戶信息接口")
  @PutMapping("/update")
  @ApiResponses({
      @ApiResponse(code = 400, message = "請求參數(shù)沒填好"),
      @ApiResponse(code = 404, message = "請求路徑?jīng)]有或頁面跳轉(zhuǎn)路徑不對"),
      @ApiResponse(code = 405, message = "未知錯誤")
  })
  public boolean update(@RequestBody User user) {
    return true;
  }

  @ApiOperation("刪除用戶接口")
  @DeleteMapping("/delete/{id}")
  public boolean delete(@PathVariable("id") int id) {
    return true;
  }
}

7、swagger界面顯示