教你利用springboot集成swagger并生成接口文档

效果图

实现步骤

1.maven中引入jar包,不同版本的swagger可能页面效果不一样。

<dependency>            <groupId>io.springfox</groupId>            <artifactId>springfox-swagger2</artifactId>            <version>2.9.1</version>        </dependency>         <dependency>            <groupId>io.springfox</groupId>            <artifactId>springfox-swagger-ui</artifactId>            <version>2.9.1</version>        </dependency>

2.启动类加上@EnableSwagger2注解,并在同路径下创建全局配置类。

import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.web.bind.annotation.RequestMethod;import springfox.documentation.builders.ApiInfoBuilder;import springfox.documentation.builders.PathSelectors;import springfox.documentation.builders.RequestHandlerSelectors;import springfox.documentation.builders.ResponseMessageBuilder;import springfox.documentation.schema.ModelRef;import springfox.documentation.service.ApiInfo;import springfox.documentation.service.ResponseMessage;import springfox.documentation.spi.DocumentationType;import springfox.documentation.spring.web.plugins.Docket; import java.util.ArrayList;import java.util.List; @Configurationpublic class Swagger2Config {      @Bean    public Docket createRestApi() {        //这块是定义全局返回码        List<ResponseMessage> responseMessageList = new ArrayList<>();        responseMessageList.add(new ResponseMessageBuilder().code(404).message("找不到资源").build());        responseMessageList.add(new ResponseMessageBuilder().code(409).message("业务逻辑异常").build());        responseMessageList.add(new ResponseMessageBuilder().code(400).message("网络协议错误").build());        responseMessageList.add(new ResponseMessageBuilder().code(500).message("服务器内部错误--->Exception").build());        responseMessageList.add(new ResponseMessageBuilder().code(502).message("nginx异常").build());        return new Docket(DocumentationType.SWAGGER_2).globalResponseMessage(RequestMethod.GET, responseMessageList)                .globalResponseMessage(RequestMethod.POST, responseMessageList)                .globalResponseMessage(RequestMethod.PUT, responseMessageList)                .globalResponseMessage(RequestMethod.DELETE, responseMessageList)                .apiInfo(apiInfo())                .select()                .apis(RequestHandlerSelectors.basePackage("order.controller"))//包的根路径                .paths(PathSelectors.any())                .build();    }     private ApiInfo apiInfo() {        return new ApiInfoBuilder()                .title("ORDER-PROVIDER")//接口文档标题设置                .description("API接口列表")//描述                .version("1.0")//版本号                .build();    }}

3.在相应的controller层写对应注解。一般来说接口文档关注的几点,网络协议,接口入参,接口出参,方法类型。拿一个conteller举例。分几步:

(1)对整个controller类加上@Api注解标识为一个swagger管理的类。

(2)方法修饰,加上@ApiOperation对方法进行说明。主要参数如图

(3)入参修饰。使用@ApiImplicitParams和@ApiImplicitParam一起封装。如果入参参数含有实体对象,其中@ApiImplicitParam的name属性就定义为类的类型,这样才能展示。如果为基本类型,name即为属性名称。

(4)出参修饰。可以使用@ApiResponses和@ApiResponse一起封装。如果返回中含有泛型实体(目前来说接口返回都是一个基本返回对象包装实例数据对象)。此时想要展现出来,就需要在接口方法处指定返回的泛型,然后在@ApiResponse注解中不要使用Response属性指定返回类型。

@RestController@RequestMapping("/manager/blacklist")@Api("黑名单管理")public class BlackListController{    @Autowired    private BlackListService blackListService;     /**     * 分页列表     */    @ApiOperation(value = "list",notes = "分页列表查询",httpMethod = "POST")    @ApiImplicitParams({            @ApiImplicitParam(paramType = "query",name = "BlackListDto",value = "黑名单实体",required = true)            @ApiImplicitParam(paramType = "query",name = "tokenId",value = "鉴权Id",required = true)    })    @ApiResponses({            @ApiResponse(code = 200,message = "成功" ),            @ApiResponse(code= 500,message = "服务错误")    })    @PostMapping("/list")    public ResponeModel<BlackListDto> list(@RequestBody BlackListDto blackListDto,String tokenId){        PageInfo<BlackListDto> list = blackListService.pageList(blackListDto);        return ResponeModel.ok(list);    }}

(5)实体修饰。要想在swagger界面展现出每个字段对应的说明。最后还需要在实体类中定义一层。使用@ApiModel定义类和@ApiModelProperty定义属性。

import com.fasterxml.jackson.annotation.JsonFormat;import io.swagger.annotations.ApiModel;import io.swagger.annotations.ApiModelProperty;import io.swagger.annotations.ApiParam;import lombok.Data; import java.util.Date; /** * 黑名单表 *  * @email ${email} * @date 2021-05-13 14:24:39 */@Data@ApiModel(value = "BlackListDto",description = "黑名单实体信息")public class BlackListDto  {private static final long serialVersionUID = 1L; /** * 主键id */@ApiModelProperty(value = "主键ID",name = "id")private Long id;/** * 买家编号 */@ApiModelProperty(value = "买家编号",name = "buyerNo")private String buyerNo;/** * 备注,进入黑名单的原因 */@ApiModelProperty(value = "备注",name = "remarks")private String remarks;/** * 黑名单状态:1未恢复  2已恢复 */@ApiModelProperty(value = "黑名单状态",dataType = "Integer")private Integer status;/** * 字符型保留字段1. */@ApiModelProperty(value = "字符型保留字段1",name = "fldS1")private String fldS1;/** * 字符型保留字段2. */@ApiModelProperty(value = "字符型保留字段2",name = "fldS2")private String fldS2;/** * 字符型保留字段3. */@ApiModelProperty(value = "字符型保留字段3",name = "fldS3")private String fldS3;/** * 数值型保留字段 */@ApiModelProperty(value = "数值型保留字段1",name = "fldN1")private Integer fldN1;/** * 数值型保留字段 */@ApiModelProperty(value = "数值型保留字段2",name = "fldN2")private Integer fldN2;/** * 创建时间 */@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8",locale = "zh")@ApiModelProperty(value = "创建时间",name = "createDate")private Date createDate;/** * 修改人 */@ApiModelProperty(value = "修改人",name = "updateBy")private String updateBy;/** * 修改时间 */@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8",locale = "zh")@ApiModelProperty(value = "修改时间",name = "updateDate")private Date updateDate;/** * 创建人ID */@ApiModelProperty(value = "创建人",name = "createBy")private String createBy;}

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教你利用springboot集成swagger并生成接口文档

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