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1、介绍

swagger是一个在线接口说明文档，在代码中通过注解的方式将说明问题集成到项目，代码发生修改，说明文档同步修改，前后台联调可以快速同步数据。

2、应用

1、引入依赖

<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>

2、编写配置类

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;
​
/*** @author szsw* @date 2023/3/1 18:12:17*/
@Configuration
public class SwaggerConfig {
​@Beanpublic Docket docket() {/*采用swagger2版本*/return new Docket(DocumentationType.SWAGGER_2)/*生成api相关信息*/.apiInfo(createApiInfo())/*返回一个apiSelectorBuilder对象，用来控制接口生成在线文档*/.select()/*扫描某个包下的接口*/.apis(RequestHandlerSelectors.basePackage("org.jsoft.demo.controller"))/*生成所有的api*/.paths(PathSelectors.any()).build();}
​/*** 创建api相关信息** @return ApiInfo*/private ApiInfo createApiInfo() {return new ApiInfoBuilder()/*自定义title*/.title("swagger demo")/*描述*/.description("swagger示例")/*定义服务域名*/.termsOfServiceUrl("")/*自定义版本号*/.version("0.0.1").build();}
​
}
​

3、开启Swagger

@EnableSwagger2                 启动器

4、编写示例

1、实体类

package org.jsoft.demo.dto;
​
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
​
import java.util.Date;
​
​
@Data
@ApiModel
public class UserUpdateDto {
​@ApiModelProperty(value = "主键", required = true, example = "asdfa54s56d")private String id;@ApiModelProperty(value = "名字", required = true, example = "张三")private String name;@ApiModelProperty(value = "密码", required = true, example = "123456")private String password;@ApiModelProperty(value = "年龄", required = true, example = "20")private Integer age;@ApiModelProperty(value = "生日", required = true, example = "1998-07-07")private Date birthday;@ApiModelProperty(value = "分数", example = "100.5")private Double score;
​
}
/*
value 描述
required 必填项
example 举例
*/
​

package org.jsoft.demo.dto;
​
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
​
import java.util.Date;
​
​
@Data
@ApiModel
public class UserAddDto {
​@ApiModelProperty(value = "名字", required = true, example = "张三")private String name;@ApiModelProperty(value = "密码", required = true, example = "123456")private String password;@ApiModelProperty(value = "年龄", required = true, example = "20")private Integer age;@ApiModelProperty(value = "生日", required = true, example = "1998-07-07")private Date birthday;@ApiModelProperty(value = "分数", example = "100.5")private Double score;
​
}
​

2、Controller

package org.jsoft.demo.controller;
​
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.jsoft.demo.dto.UserAddDto;
import org.jsoft.demo.dto.UserUpdateDto;
import org.jsoft.demo.utils.Result;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;
​
import java.util.Map;
​
​
@Api(tags = "用户")
@RestController
@RequestMapping("/user")
public class UserController {
​@PostMapping@ApiOperation("用户新增")public Result add(@RequestBody UserAddDto dto) {return Result.ok();}
​@DeleteMapping("/{id}")@ApiOperation("用户删除")@ApiImplicitParams({@ApiImplicitParam(value = "删除的用户主键", name = "id", paramType = "path")})public Result delete(@PathVariable String id) {return Result.ok();}
​@PutMapping@ApiOperation("用户修改")public Result update(@RequestBody UserUpdateDto dto) {return Result.ok();}
​@GetMapping("/{id}")@ApiOperation("用户详情")@ApiImplicitParams({@ApiImplicitParam(value = "用户主键", paramType = "path")  //path是指地址传参。})public Result info(@PathVariable String id) {return Result.ok();}
​@GetMapping@ApiOperation("用户查询")@ApiImplicitParams({@ApiImplicitParam(value = "姓名", name = "name", paramType = "query"),@ApiImplicitParam(value = "年龄", name = "age", paramType = "query"),@ApiImplicitParam(value = "分数", name = "score", paramType = "query")  // get地址栏传参})public Result query(@ApiIgnore @RequestParam Map<String, String> params) {return Result.ok();}
​
}
​

3、访问地址

http:localhost:100/swagger-ui.html                100端口号