[GitHub] zhang4045 opened a new issue #694: 统一异常处理

[GitBox <gi...@apache.org>]

zhang4045 opened a new issue #694: 统一异常处理
URL: https://github.com/apache/incubator-servicecomb-java-chassis/issues/694
 
 
   自定义覆盖SwaggerProducerOperation类，在接口中抛出自定义异常，在doInvoke()方法中，捕获异常处理
   ServiceRuntimeException为自定义异常，debug模式下，v2是ServiceRuntimeException，但是v2 instanceof ServiceRuntimeException判断通过不了。
   代码如下：
   ```
   public Response doInvoke(SwaggerInvocation invocation) {
           Response response = null;
           try {
               Object[] args = this.argumentsMapper.toProducerArgs(invocation);
               Object result = this.producerMethod.invoke(this.producerInstance, args);
               response = this.responseMapper.mapResponse(invocation.getStatus(), result);
           } catch (InvocationTargetException var5) {
               Throwable v2 = var5.getTargetException();
               Throwable v3 = var5.getTargetException().getCause();
               Class aClass = v2.getClass();
               Class serviceRuntimeExceptionClass = ServiceRuntimeException.class;
               if(v2 instanceof ServiceRuntimeException){
                   ServiceRuntimeException v1 = (ServiceRuntimeException)v2;
                   BackVO backVO = new BackVO();
                   backVO.setStatus(v1.getErrCode());
                   backVO.setMessage(v1.getMessage());
                   response = this.responseMapper.mapResponse(invocation.getStatus(), backVO);
               }else{
                   response = this.processException(invocation, var5);
               }
           } catch (Throwable var5) {
               response = this.processException(invocation, var5);
           }
   
           return response;
       }
   ```
   ![2 q pp1v7 ksddx 1 t](https://user-images.githubusercontent.com/13702363/39794058-f1ae0e44-537a-11e8-9c6d-37304cb3eac5.png)

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