SpringMVC集成Swagger插件以及Swagger注解的简单使用

以你之姓@ 2022-05-31 13:48 170阅读 0赞

### 一、简介 ###

[Swagger][] 是一个规范和完整的框架，用于生成、描述、调用和可视化 RESTful 风格的 Web 服务。总体目标是**使客户端和文件系统作为服务器以同样的速度来更新** 。接口的方法，参数和模型紧密集成到服务器端的代码，允许API来始终保持同步。Swagger 让部署管理和使用功能强大的API从未如此简单。

我们的RESTful API就有可能要面对多个开发人员或多个开发团队：IOS开发、Android开发、Web开发等。为了减少与其他团队平时开发期间的频繁沟通成本，传统做法我们会创建一份RESTful API文档来记录所有接口细节，然而这样的做法有以下几个问题：

> 1.  由于接口众多，并且细节复杂（需要考虑不同的HTTP请求类型、HTTP头部信息、HTTP请求内容等），高质量地创建这份文档本身就是件非常吃力的事，下游的抱怨声不绝于耳；
> 2.  随着时间推移，不断修改接口实现的时候都必须同步修改接口文档，而文档与代码又处于两个不同的媒介，除非有严格的管理机制，不然很容易导致不一致现象；

而swagger完美的解决了上面的几个问题，并与Spring MVC程序配合组织出强大RESTful API文档。它既可以减少我们创建文档的工作量，同时说明内容又整合入实现代码中，让维护文档和修改代码整合为一体，可以让我们在修改代码逻辑的同时方便的修改文档说明。另外Swagger2也提供了强大的**页面测试功能** 来调试每个RESTful API。

### 二、添加Swagger2依赖 ###

<dependency>
         <groupId>io.springfox</groupId>
         <artifactId>springfox-swagger2</artifactId>
         <version>2.6.1</version>
    </dependency>
    <dependency>
         <groupId>io.springfox</groupId>
         <artifactId>springfox-swagger-ui</artifactId>
         <version>2.6.1</version>
    </dependency>
    <dependency>  
         <groupId>com.fasterxml.jackson.core</groupId>  
         <artifactId>jackson-core</artifactId>  
         <version>2.6.5</version>  
    </dependency>  
    <dependency>  
         <groupId>com.fasterxml.jackson.core</groupId>  
         <artifactId>jackson-databind</artifactId>  
         <version>2.6.5</version>  
    </dependency>  
    <dependency>  
         <groupId>com.fasterxml.jackson.core</groupId>  
         <artifactId>jackson-annotations</artifactId>  
         <version>2.6.5</version>  
    </dependency>

### 三、创建Swagger2配置类 ###

package com.xia.common.config;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.web.servlet.config.annotation.EnableWebMvc;
    import io.swagger.annotations.ApiOperation;
    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;
    
    /** * 类描述：配置swagger2信息 * 创建人：XiaChengwei * 创建时间：2017年7月28日 上午10:03:29 * @version 1.0 */
    @Configuration        //让Spring来加载该类配置
    @EnableWebMvc        //启用Mvc，非springboot框架需要引入注解@EnableWebMvc
    @EnableSwagger2        //启用Swagger2
    public class Swagger2Config {
        @Bean
        public Docket createRestApi() {
            return new Docket(DocumentationType.SWAGGER_2)
                    .apiInfo(apiInfo()).select()
                    //扫描指定包中的swagger注解
                    //.apis(RequestHandlerSelectors.basePackage("com.xia.controller"))
                    //扫描所有有注解的api，用这种方式更灵活
                    .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
                    .paths(PathSelectors.any())
                    .build();
        }
    
        private ApiInfo apiInfo() {
            return new ApiInfoBuilder()
                    .title("基础平台 RESTful APIs")
                    .description("基础平台 RESTful 风格的接口文档，内容详细，极大的减少了前后端的沟通成本，同时确保代码与文档保持高度一致，极大的减少维护文档的时间。")
                    .termsOfServiceUrl("http://xiachengwei5.coding.me")
                    .contact("Xia")
                    .version("1.0.0")
                    .build();
        }
    }

### 四、编写swagger注解 ###

实体类：

package com.xia.model;
    
    import java.util.Date;
    import org.springframework.format.annotation.DateTimeFormat;
    import com.fasterxml.jackson.annotation.JsonFormat;
    import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
    import com.fasterxml.jackson.annotation.JsonInclude;
    import io.swagger.annotations.ApiModel;
    import io.swagger.annotations.ApiModelProperty;
    /** * 人员信息表 * 注解：@ApiModel 和 @ApiModelProperty 用于在通过对象接收参数时在API文档中显示字段的说明 * 注解：@DateTimeFormat 和 @JsonFormat 用于在接收和返回日期格式时将其格式化 * 实体类对应的数据表为： user_info * @author XiaChengwei * @date: 2017-07-14 16:45:29 */
    @JsonInclude(JsonInclude.Include.NON_NULL)
    @JsonIgnoreProperties({ "handler","hibernateLazyInitializer" }) 
    @ApiModel(value ="UserInfo")
    public class UserInfo {
        @ApiModelProperty(value = "ID")
        private Integer id;
    
        @ApiModelProperty(value = "用户登录账号", required = true)
        private String userNo;
    
        @ApiModelProperty(value = "姓名", required = true)
        private String userName;
        
        @ApiModelProperty(value = "姓名拼音")
        private String spellName;
    
        @ApiModelProperty(value = "密码", required = true)
        private String password;
    
        @ApiModelProperty(value = "手机号", required = true)
        private String userPhone;
    
        @ApiModelProperty(value = "性别")
        private Integer userGender;
    
        @ApiModelProperty(value = "记录创建时间")
        @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
        private Date createTime;
    
        @ApiModelProperty(value = "记录修改时间")
        @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
        private Date updateTime;
        
        public Integer getId() {
            return id;
        }
    
        public void setId(Integer id) {
            this.id = id;
        }
        
        public String getUserNo() {
            return userNo;
        }
    
        public void setUserNo(String userNo) {
            this.userNo = userNo == null ? null : userNo.trim();
        }
        
        public String getUserName() {
            return userName;
        }
    
        public void setUserName(String userName) {
            this.userName = userName == null ? null : userName.trim();
        }
        
        public String getSpellName() {
            return spellName;
        }
    
        public void setSpellName(String spellName) {
            this.spellName = spellName;
        }
    
        public String getPassword() {
            return password;
        }
    
        public void setPassword(String password) {
            this.password = password == null ? null : password.trim();
        }
       
        public String getUserPhone() {
            return userPhone;
        }
    
        public void setUserPhone(String userPhone) {
            this.userPhone = userPhone == null ? null : userPhone.trim();
        }
        
        public Integer getUserGender() {
            return userGender;
        }
    
        public void setUserGender(Integer userGender) {
            this.userGender = userGender;
        }
      
        @JsonFormat(locale = "zh", timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
        public Date getCreateTime() {
            return createTime;
        }
    
        public void setCreateTime(Date createTime) {
            this.createTime = createTime;
        }
    
        @JsonFormat(locale = "zh", timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
        public Date getUpdateTime() {
            return updateTime;
        }
    
        public void setUpdateTime(Date updateTime) {
            this.updateTime = updateTime;
        }
    
        @Override
        public String toString() {
            StringBuilder sb = new StringBuilder();
            sb.append(getClass().getSimpleName());
            sb.append(" [");
            sb.append("Hash = ").append(hashCode());
            sb.append(", id=").append(id);
            sb.append(", userNo=").append(userNo);
            sb.append(", userName=").append(userName);
            sb.append(", spellName=").append(spellName);
            sb.append(", password=").append(password);
            sb.append(", userPhone=").append(userPhone);
            sb.append(", userGender=").append(userGender);
            sb.append(", createTime=").append(createTime);
            sb.append(", updateTime=").append(updateTime);
            sb.append("]");
            return sb.toString();
        }
    }

控制类：

package com.infore.controller;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.ResponseBody;
    import org.springframework.web.bind.annotation.RestController;
    import com.github.pagehelper.PageHelper;
    import com.github.pagehelper.PageInfo;
    import com.infore.common.pinyin.PinyinUtils;
    import com.infore.common.util.ControllerUtil;
    import com.infore.model.ResponseDto;
    import com.infore.model.UserInfo;
    import com.infore.model.dto.UserInfoDto;
    import com.infore.service.UserInfoService;
    import gbap.log.Logger;
    import gbap.log.LoggerFactory;
    import io.swagger.annotations.Api;
    import io.swagger.annotations.ApiImplicitParam;
    import io.swagger.annotations.ApiImplicitParams;
    import io.swagger.annotations.ApiOperation;
    import java.util.List;
    import javax.annotation.Resource;
    import javax.ws.rs.core.MediaType;
    
    /** * 人员信息控制类 * @author XiaChengwei * @date: 2017-07-14 16:45:29 */
    @RestController
    @RequestMapping(value = "/userInfo", produces = MediaType.APPLICATION_JSON)
    @Api(value = "用户信息", description = "用户信息", produces = MediaType.APPLICATION_JSON)
    public class UserInfoController {
        private Logger logger = LoggerFactory.getLogger(getClass());
        
        @Resource
        UserInfoService service;
        
        @ResponseBody
        @RequestMapping(value = "/selectAllUsers", method = RequestMethod.GET)
        @ApiOperation(value = "查询所有的人员信息并分页展示", notes = "查询所有的人员信息并分页展示")
        @ApiImplicitParams({
            @ApiImplicitParam(name = "page",value = "跳转到的页数", required = true, paramType = "query"),
            @ApiImplicitParam(name = "size",value = "每页展示的记录数", required = true, paramType = "query")
        })
        public ResponseDto selectAllUsers(Integer page, Integer size) {
            page = page == null || page <= 0 ? 1 : page;
            size = size == null || size <= 5 ? 5 : size;
            PageHelper.startPage(page, size);//PageHelper只对紧跟着的第一个SQL语句起作用
            List<UserInfo> userInfoList = service.selectAllUsers();
            PageInfo pageInfo = new PageInfo(userInfoList);
            return ControllerUtil.returnDto(true, "成功", pageInfo);
        }
        
        @ResponseBody
        @RequestMapping(value = "/selectContacts", method = RequestMethod.GET)
        @ApiOperation(value = "查询通讯录人员信息", notes = "查询通讯录人员信息")
        public ResponseDto selectContacts() {
            List<UserInfo> list = service.selectContacts();
            return ControllerUtil.returnDto(true, "成功", list);
        }
        
        @ResponseBody
        @RequestMapping(value = "selectByUserNo", method = RequestMethod.GET)
        @ApiOperation(value = "新增人员前先检测用户名是否可用", notes = "新增人员前先检测用户名是否可用")
        @ApiImplicitParams({
            @ApiImplicitParam(name = "user_no", value = "用户输入的用户名", required = true, paramType = "query")
        })
        public ResponseDto selectByUserNo(String user_no) {
            UserInfo userInfo = service.selectByUserNo(user_no);
            if(null == userInfo || "".equals(userInfo.getUserNo())) {
                return ControllerUtil.returnDto(true, "此用户名可用", null);
            }else {
                return ControllerUtil.returnDto(false, "此用户名不可用", null);
            }
        }
    
        @ResponseBody
        @RequestMapping(value = "insertSelective", method = RequestMethod.POST)
        @ApiOperation(value = "新增人员", notes = "新增人员")
        public ResponseDto insertSelective(UserInfoDto userInfoDto) {
            int count = 0;
            PinyinUtils pinyin = new PinyinUtils();
            try {
                //新增人员之前先检查用户名是否可用
                UserInfo userInfo = service.selectByUserNo(userInfoDto.getUserNo());
                if(null != userInfo && !"".equals(userInfo.getUserNo())) {
                    return ControllerUtil.returnDto(false, "此用户名不可用", null);
                }
                
                if(null != userInfoDto.getUserName() && !"".equals(userInfoDto.getUserName())) {
                    //获取姓名拼音并存在对象中
                    userInfoDto.setSpellName(pinyin.getPingYin(userInfoDto.getUserName()));
                }else {
                    return ControllerUtil.returnDto(false, "请输入姓名", count);
                }
                
                count = service.insertSelective(userInfoDto);
                if(count <= 0) {
                    return ControllerUtil.returnDto(false, "失败", count);
                }else {
                    return ControllerUtil.returnDto(true, "成功", count);
                }
            } catch (Exception e) {
                logger.error("userInfo--insertSelective:系统异常");
                return ControllerUtil.returnDto(false, "系统异常", count);
            }
        }
        
        @ResponseBody
        @RequestMapping(value = "updateByPrimaryKeySelective", method = RequestMethod.POST)
        @ApiOperation(value = "根据id修改人员信息", notes = "根据id修改人员信息")
        public ResponseDto updateByPrimaryKeySelective(UserInfoDto userInfoDto) {
            int count = 0;
            try {
                count = service.updateByPrimaryKeySelective(userInfoDto);
                if(count <= 0) {
                    return ControllerUtil.returnDto(false, "失败", count);
                }else {
                    return ControllerUtil.returnDto(true, "成功", count);
                }
            } catch (Exception e) {
                logger.error("userInfo--updateByPrimaryKeySelective:系统异常");
                return ControllerUtil.returnDto(false, "系统异常", count);
            }
        }
        
        @ResponseBody
        @RequestMapping(value = "modifyPwdById", method = RequestMethod.GET)
        @ApiOperation(value = "修改密码", notes = "修改密码")
        @ApiImplicitParams({
            @ApiImplicitParam(name = "id",value = "人员信息id", required = true, paramType = "query"),
            @ApiImplicitParam(name = "security_code",value = "验证码", required = true, paramType = "query"),
            @ApiImplicitParam(name = "password",value = "新密码", required = true, paramType = "query")
        })
        public ResponseDto updateByPrimaryKeySelective(Integer id, String security_code, String password) {
            int count = 0;
            try {
                //先对验证码是否正确做验证（此处暂未处理）
                UserInfoDto userInfoDto = new UserInfoDto();
                userInfoDto.setId(id);
                userInfoDto.setPassword(password);
                count = service.modifyPwdById(userInfoDto);
                if(count <= 0) {
                    return ControllerUtil.returnDto(false, "失败", count);
                }else {
                    return ControllerUtil.returnDto(true, "成功", count);
                }
            } catch (Exception e) {
                logger.error("userInfo--modifyPwdById:系统异常");
                return ControllerUtil.returnDto(false, "系统异常", count);
            }
        }
        
        @ResponseBody
        @RequestMapping(value = "deleteByPrimaryKey", method = RequestMethod.GET)
        @ApiOperation(value = "根据id删除人员信息", notes = "根据id删除人员信息")
        @ApiImplicitParams({
            @ApiImplicitParam(name = "id", value = "人员信息id", required = true, paramType = "query")
        })
        public ResponseDto deleteByPrimaryKey(Integer id) {
            int count = 0;
            try {
                count = service.deleteByPrimaryKey(id);
                if(count <= 0) {
                    return ControllerUtil.returnDto(false, "失败", count);
                }else {
                    return ControllerUtil.returnDto(true, "成功", count);
                }
            } catch (Exception e) {
                logger.error("userInfo--deleteByPrimaryKey:系统异常");
                return ControllerUtil.returnDto(false, "系统异常", count);
            }
        }
        
        @ResponseBody
        @RequestMapping(value = "selectById", method = RequestMethod.GET)
        @ApiOperation(value = "根据id查询人员的所有信息", notes = "根据id查询人员的所有信息")
        @ApiImplicitParams({
            @ApiImplicitParam(name = "id", value = "人员信息id", required = true, paramType = "query")
        })
        public ResponseDto selectById(Integer id) {
            UserInfoDto dto = service.selectById(id);
            return ControllerUtil.returnDto(true, "成功", dto);
        }
    }

### 五、访问 ###

配置完成之后重启服务器，访问地址 `http://localhost:8080/项目名/swagger-ui.html`，如：

http://localhost:8080/spring-mvc/swagger-ui.html

访问之后的效果图如下：

![1460000010554450][]

点击具体的接口展开详情，效果图如下：

![1460000010554451][]

在`/userInfo/selectById` 接口中输入相关参数，点击**Try it out** 按钮查看接口的返回值，如下：

{
      "success": true,
      "msg": "成功",
      "data": {
        "id": 1,
        "userNo": "admin",
        "userName": "管理员",
        "spellName": "guanliyuan",
        "password": "123",
        "userPhone": "18681558780",
        "userGender": 0,
        "createTime": "2017-06-27 01:56:28",
        "updateTime": "2017-07-26 15:56:05"
      }
    }

### 六、参考资料 ###

[源码地址][Link 1]

[swagger2 与 springmvc 整合 生成接口文档][swagger2 _ springmvc _]

[一步步完成Maven+SpringMVC+SpringFox+Swagger整合示例][Maven_SpringMVC_SpringFox_Swagger]

[Spring MVC中使用 Swagger2 构建Restful API][Spring MVC_ Swagger2 _Restful API]

[Spring MVC中使用Swagger生成API文档和完整项目示例][Spring MVC_Swagger_API]

[SwaggerUI用户手册][SwaggerUI]

### 七、拓展延伸 ###

[RAP][]

[Swagger]: https://swagger.io/
[1460000010554450]: /images/20220531/d2ff646d0b87489293a30f1546651765.png
[1460000010554451]: /images/20220531/b7dcf67cfbe84997a56452f9f95addeb.png
[Link 1]: https://github.com/xiachengwei5/spring-mvc
[swagger2 _ springmvc _]: http://blog.csdn.net/BuddyUU/article/details/53763056
[Maven_SpringMVC_SpringFox_Swagger]: https://my.oschina.net/wangmengjun/blog/907679
[Spring MVC_ Swagger2 _Restful API]: http://blog.csdn.net/he90227/article/details/52119506
[Spring MVC_Swagger_API]: http://m.blog.csdn.net/FansUnion/article/details/51923720
[SwaggerUI]: http://www.cnblogs.com/baiyunchen/p/5895513.html
[RAP]: http://rapapi.org/