Swagger（-UI）不显示操作

Question

我有一个spring的网络应用程序，我增加了swagger和swagger-UI。我添加了一个虚拟类来测试Swagger：

import com.wordnik.swagger.annotations.Api;
import com.wordnik.swagger.annotations.ApiError;
import com.wordnik.swagger.annotations.ApiErrors;
import com.wordnik.swagger.annotations.ApiOperation;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

@Api(value = "DummyController", description = "Dummy description for the controller")
@Controller
@RequestMapping(value = "/dummy")
public class DummyClassForSwagger {

    @ApiOperation(value = "First dummy output", httpMethod = "GET")
    @ApiErrors({@ApiError(code = 404, reason = "First dummy test") })
    @RequestMapping(value = "/first", method = RequestMethod.GET)
    @ResponseBody
    public String dummyOutputOne() {
        return "Dummy output";
    }

    @ApiOperation(value = "Second dummy output", httpMethod = "GET")
    @ApiErrors({@ApiError(code = 404, reason = "Second dummy test") })
    @RequestMapping(value = "/second", method = RequestMethod.GET)
    @ResponseBody
    public String dummyOutputTwo() {
        return "Second dummy output";
    }
}

构建/部署之后，我可以在swagger页面上看到虚拟类（参见附件1）。问题是，“列表操作”没有显示任何内容。原始输出如下：

<controllerDocumentation>
<apiVersion>1.0</apiVersion>
<apis>
<description>Dummy description for the controller</description>
<operations>
<deprecated>false</deprecated>
<errorResponses>
<code>404</code>
<reason>First dummy test</reason>
</errorResponses>
<httpMethod>GET</httpMethod>
<nickname>dummyOutputOne</nickname>
<notes/>
<responseClass>String</responseClass>
<summary>First dummy output</summary>
</operations>
<path>/dummy/first</path>
</apis>
<apis>
<description>Dummy description for the controller</description>
<operations>
<deprecated>false</deprecated>
<errorResponses>
<code>404</code>
<reason>Second dummy test</reason>
</errorResponses>
<httpMethod>GET</httpMethod>
<nickname>dummyOutputTwo</nickname>
<notes/>
<responseClass>String</responseClass>
<summary>Second dummy output</summary>
</operations>
<path>/dummy/second</path>
</apis>
<basePath>http://localhost:8080/mapserver/core</basePath>
<models/>
<resourcePath>/dummy</resourcePath>
<swaggerVersion>1.0</swaggerVersion>
</controllerDocumentation>

我想，问题是一个缺失的标签“操作”或类似的东西……但我不确定（也不知道，如何修复这一点）。有什么建议吗？

Answer 1

我也有类似的问题。我收到错误“SwaggerOperation handleIllegalArgumentsException is missing method.”。

调试后，我发现controller类中的@exceptionhandler方法没有任何swagger注释，这就是问题的原因。

我注释了我的exceptionhandler方法，swagger ui开始正常工作。

我现在正在弄清楚在spring MVC中应该为exceptionhandler方法使用哪些大摇大摆的注释。

controller类中的ExceptionHandler方法是：

@ExceptionHandler({IllegalArgumentException.class})
public ResponseEntity<?> handleIllegalArgumentsException(IllegalArgumentException e)
{
    LOGGER.error("IllegalArgumentException in user controller", e);
    return new ResponseEntity<>(new ErrorResponseDTO("BAD_REQUEST", e.getMessage()), HttpStatus.BAD_REQUEST);
}