SpringBoot项目处理filter中抛出的异常

Dear 丶 2023-02-12 06:25 3阅读 0赞

### SpringBoot项目处理filter中抛出的异常 ###

> 0、备忘记录

> 1、在filter中抛出异常,会发现在统一异常处理里面接收不到filter中抛出的这个异常信息

> 2、filter中的异常走的是BasicErrorController，通过继承这个类可以定制化返回信息

> 3、代码如下

import org.springframework.boot.autoconfigure.web.ErrorProperties;
    import org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController;
    import org.springframework.boot.web.error.ErrorAttributeOptions;
    import org.springframework.boot.web.servlet.error.DefaultErrorAttributes;
    import org.springframework.http.HttpStatus;
    import org.springframework.http.MediaType;
    import org.springframework.http.ResponseEntity;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import javax.servlet.http.HttpServletRequest;
    import java.util.Map;
    
    /** * @create 2020-05-22 18:01 */
    @RestController
    public class ErrorController extends BasicErrorController { 
        public ErrorController() { 
            super(new DefaultErrorAttributes(), new ErrorProperties());
        }
    
        @RequestMapping(produces = { MediaType.APPLICATION_JSON_VALUE})
        @Override
        public ResponseEntity<Map<String, Object>> error(HttpServletRequest request) { 
            Map<String, Object> errorAttributes = getErrorAttributes(request, ErrorAttributeOptions.of(ErrorAttributeOptions.Include.EXCEPTION,ErrorAttributeOptions.Include.MESSAGE,ErrorAttributeOptions.Include.STACK_TRACE,ErrorAttributeOptions.Include.BINDING_ERRORS));
            HttpStatus status = getStatus(request);
            // 获取错误信息
            String code = errorAttributes.get("status").toString();
            String message = errorAttributes.get("message").toString();
    
            ApiErrorResult apiErrorResult = new ApiErrorResult(false,code,message);
            return new ResponseEntity<>(apiErrorResult,status);
        }
    }

> 4、返回信息定义如下

import java.util.LinkedHashMap;
    
    public class ApiErrorResult extends LinkedHashMap<String,Object> { 
        private static final String SUCCESS_KEY = "success";
        private static final String CODE_KEY = "code";
        private static final String MESSAGE_KEY =  "message";
    
        public ApiErrorResult(boolean success, String code, String message) { 
            this.put(SUCCESS_KEY,success);
            this.put(CODE_KEY,code);
            this.put(MESSAGE_KEY,message);
        }
    }

> 5、返回信息如下  
> \{“success”:false,“code”:“500”,“message”:“注册请求过于频繁,请10分钟后再试!”\}

> 小尾巴~~  
> 只要有积累，就会有进步