1. 启用Swagger
1.1 启用注解扫描和文档接口
直接在POM文件引入依赖
<dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>2.9.2</version>
</dependency>
1.2 启动swagger-ui
目前看到的选项有2个:
- swaager-ui ,访问地址: http://127.0.0.1:18080/swagger-ui.html
<dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId><version>2.9.2</version></dependency>
- swagger-bootstrap-ui ,也叫knife4j ,访问地址: http://127.0.0.1:18080/doc.html
<dependency><groupId>com.github.xiaoymin</groupId><artifactId>swagger-bootstrap-ui</artifactId><version>${lastVersion}</version></dependency>
我更喜欢swagger-bootstrap-ui的风格
1.3 创建Swagger配置类
@Configuration@EnableSwagger2public class SwaggerConfig {@Beanpublic Docket createRestApi() {return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).select()// .apis(RequestHandlerSelectors.any()).apis(RequestHandlerSelectors.basePackage("com.dwpro")).paths(PathSelectors.any()).build();}private ApiInfo apiInfo() {return new ApiInfoBuilder().title("标题lws") //标题.description("简介lws") //简介.termsOfServiceUrl("服务条款lws") //服务条款.contact(new Contact("randy", "", "randy@gmail.com")).version("1.0.lws") //版本.build();}}
2. 注解
2.1 @Api
@Api
注解在Controller
上,通过tags指定指定名称(左侧菜单的名称),tags可以指定多个值,多种使用场景通过指定相同的tag值将所有的API分组在一起。
@Api
还有value
和description
属性,description
已经@Deprecated
,value
号称会被当成tags
值,实际测试下来无效
@RestController@RequestMapping("/v1")@Api(tags = {"测试Swagger的注解使用"})public class HelloworldController {}
2.2 @ApiOperation
@ApiOperation
用于注解到Controller上的方法,对应一个对外提供的接口。目前有4个属性:
属性 | 描述 |
---|---|
value | 对操作的简单说明 |
notes | 对操作的详细说明 |
httpMethod | HTTP请求类型,可选:GET HEAD POST PUT DELETE OPTIONS PATCH |
code | HTTP状态码,默认为200 |
produces | 输出的Content-Type |
consumes | 输入的Content-Type |
示例
@RequestMapping("say")@ApiOperation(value = "用于打印用户输入信息", notes = "这是个什么鬼啊啊啊", httpMethod = "GET")public String say(@RequestParam("message") String message) {return message;}
2.3 @ApiParam
属性 | 描述 |
---|---|
name | 参数名称,因此这个一般应该是字母 |
value | 参数说明 |
defaultValue | 参数默认值 |
required | 参数是否必须 |
参数类型会通过反射获取,如果参数是基本类型会显示在数据类型
字段,如果参数是自定义的类,会同时显示在数据类型
和schema
字段
2.3.1 示例: query param
基本上只有value
字段对接收说明有意义, example
字段是在页面上调试给的示例值
@RequestMapping("say")
@ApiOperation(value = "用于打印用户输入信息", notes = "这是个什么鬼啊啊啊", httpMethod = "GET")
public String say(@ApiParam(value = "参数描述", example = "10086") @RequestParam("message") Integer message) {return "";
}
2.3.2 示例: 使用请求体,并用一个对象接收参数
使用@RequestBody
的场景下,指定@ApiParam
唯一有用的属性的value
,指定其他参数没有效果
@PostMapping("say2")@ApiOperation(value = "测试请求体", notes = "这是个什么鬼啊啊啊", httpMethod = "POST")public String say2(@ApiParam(value = "参数描述") @RequestBody ApFissionLog apFissionLog) {return "";}
2.4 @ApiImplicitParams 和 @ApiImplicitParam
和@ApiParam
相同作用,但是不把注解混合到代码内部,可读性更强,个人更喜欢这种方式
@PostMapping("say3")@ApiImplicitParams({@ApiImplicitParam(name = "cavatar",value = "value1",example = "10001", dataType = "int", paramType = "query"),@ApiImplicitParam(name = "cnickname",value = "value2",example = "example2", dataType = "string", paramType = "query")})public String say3(@RequestParam("cavatar") String cavatar, @RequestParam("cnickname") String cnickname) {return "";}
2.5 @ApiResponse
定义接口的返回值,示例中say4
和say5
方法的表现基本一致,没发现注解的特殊意义
属性 | 描述 |
---|---|
code | HTTP状态码 |
message | 状态码的文本描述 |
response | 返回值的class |
responseContainer | 返回容器类型时使用,有效值: List Set Map |
@PostMapping("say4")public ApFissionLog say4(@RequestParam("cavatar") String cavatar, @RequestParam("cnickname") String cnickname) {return new ApFissionLog();}@PostMapping("say5")@ApiResponse(code = 200,message = "返回描述", response = ApFissionLog.class)public ApFissionLog say5(@RequestParam("cavatar") String cavatar, @RequestParam("cnickname") String cnickname) {return new ApFissionLog();}
2.6 @ApiModel和@ApiModelProperty
当请求和响应是POJO的时候特别有用,现实场景中这又是最常用的情况。
@ApiModel
用于指定POJO类的描述,提供更可读的类型名称(这个个人觉得没用,直接展示现有类名挺好)。
属性 | 描述 |
---|---|
value | model的别名,默认为类名 |
description | model的详细描述 |
@ApiModelProperty
用于描述POJO里的字段
属性 | 描述 |
---|---|
value | 属性简短描述 |
example | 属性的示例值 |
required | 是否为必须值 |
@PostMapping("say6")@ApiOperation(value = "测试请求体", notes = "这是个什么鬼啊啊啊", httpMethod = "POST")public ApFissionLog say6(@RequestBody ApFissionLog apFissionLog) {return new ApFissionLog();}
通过在ApFissionLog
类上添加注解
@ApiModel(value = "model类名字", description = "描述信息")
public class ApFissionLog {@ApiModelProperty(value = "C用户的昵称", notes = "notes", example = "AAA-BBB-CCC", required = true)private String cnickname;@ApiModelProperty(value = "C用户的头像", notes = "notes", example = "http://www.aaa.com/avtar.png", required = true)private String cavatar;}
3. API分组
通过在Swagger的配置类里创建两个Docket
对象,扫描不同的包就能完成分组
@Configuration
@EnableSwagger2
public class SwaggerConfig {@Bean("defaultApi")public Docket createRestApi() {return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).groupName("分组1").select()
// .apis(RequestHandlerSelectors.any()).apis(RequestHandlerSelectors.basePackage("com.dwpro")).paths(PathSelectors.any()).build();}@Bean("groupApi")public Docket createGroupApi() {return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).groupName("分组2").select()
// .apis(RequestHandlerSelectors.any()).apis(RequestHandlerSelectors.basePackage("com.dwpro")).paths(PathSelectors.any()).build();}private ApiInfo apiInfo() {return new ApiInfoBuilder().title("标题lws") //标题.description("简介lws") //简介.termsOfServiceUrl("服务条款lws") //服务条款.contact(new Contact("randy", "", "randy@gmail.com")).version("1.0.lws") //版本.build();}
}
4. 完整示例
4.1 pom.xml 添加依赖
<dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>2.9.2</version></dependency><dependency><groupId>com.github.xiaoymin</groupId><artifactId>swagger-bootstrap-ui</artifactId><version>1.9.6</version></dependency>
4.2 Swagger Config 类
@Configuration
@EnableSwagger2
public class SwaggerConfig {@Bean("defaultApi")public Docket createRestApi() {return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).groupName("分组1").select()
// .apis(RequestHandlerSelectors.any()).apis(RequestHandlerSelectors.basePackage("com.dwpro")).paths(PathSelectors.any()).build();}@Bean("groupApi")public Docket createGroupApi() {return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).groupName("分组2").select()
// .apis(RequestHandlerSelectors.any()).apis(RequestHandlerSelectors.basePackage("com.dwpro")).paths(PathSelectors.any()).build();}private ApiInfo apiInfo() {return new ApiInfoBuilder().title("标题lws") //标题.description("简介lws") //简介.termsOfServiceUrl("服务条款lws") //服务条款.contact(new Contact("randy", "", "randy@gmail.com")).version("1.0.lws") //版本.build();}
}
4.3 Controller类
@RestController@RequestMapping("/v1")@Api(tags = {"测试Swagger的注解使用"})public class HelloworldController {@RequestMapping("say1")@ApiOperation(value = "用于打印用户输入信息", notes = "这是个什么鬼啊啊啊", httpMethod = "GET")public String say1(@ApiParam(value = "参数描述", example = "10086") @RequestParam("message") Integer message) {return "";}@PostMapping("say2")@ApiOperation(value = "测试请求体", notes = "这是个什么鬼啊啊啊", httpMethod = "POST")public String say2(@ApiParam(value = "参数描述") @RequestBody ApFissionLog apFissionLog) {return "";}@PostMapping("say3")@ApiImplicitParams({@ApiImplicitParam(name = "cavatar",value = "value1",example = "10001", dataType = "int", paramType = "query"),@ApiImplicitParam(name = "cnickname",value = "value2",example = "example2", dataType = "string", paramType = "query")})public String say3(@RequestParam("cavatar") String cavatar, @RequestParam("cnickname") String cnickname) {return "";}@PostMapping("say4")public ApFissionLog say4(@RequestParam("cavatar") String cavatar, @RequestParam("cnickname") String cnickname) {return new ApFissionLog();}@PostMapping("say5")@ApiResponse(code = 200,message = "返回描述", response = ApFissionLog.class)public ApFissionLog say5(@RequestParam("cavatar") String cavatar, @RequestParam("cnickname") String cnickname) {return new ApFissionLog();}@PostMapping("say6")@ApiOperation(value = "测试请求体", notes = "这是个什么鬼啊啊啊", httpMethod = "POST")public ApFissionLog say6(@RequestBody ApFissionLog apFissionLog) {return new ApFissionLog();}}
4.4 POJO类
@Data@ApiModel(value = "model类名字", description = "描述信息")public class ApFissionLog {@ApiModelProperty(value = "C用户的昵称", notes = "notes", example = "AAA-BBB-CCC", required = true)private String cnickname;@ApiModelProperty(value = "C用户的头像", notes = "notes", example = "http://www.aaa.com/avtar.png", required = true)private String cavatar;}