springBoot 全局异常捕捉

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package cn.com.cs.core.exception;   import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.http.HttpStatus; import org.springframework.http.converter.HttpMessageNotReadableException; import org.springframework.validation.BindException; import org.springframework.validation.BindingResult; import org.springframework.validation.FieldError; import org.springframework.web.HttpMediaTypeNotSupportedException; import org.springframework.web.HttpRequestMethodNotSupportedException; import org.springframework.web.bind.MethodArgumentNotValidException; import org.springframework.web.bind.MissingServletRequestParameterException; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.ResponseStatus; import org.springframework.web.servlet.NoHandlerFoundException;   import javax.validation.ConstraintViolation; import javax.validation.ConstraintViolationException; import javax.xml.bind.ValidationException; import java.util.Set;   /**  * 异常处理类  */ @ControllerAdvice @ResponseBody public class CommonExceptionAdvice {     private static Logger logger = LoggerFactory.getLogger(CommonExceptionAdvice.class);         /**      * 400 - Bad Request      */     @ResponseStatus(HttpStatus.BAD_REQUEST)     @ExceptionHandler(MissingServletRequestParameterException.class)     public String handleMissingServletRequestParameterException(MissingServletRequestParameterException e) {         logger.error("缺少请求参数", e);         return "缺少请求参数";     }     /**      * 400 - Bad Request      */     @ResponseStatus(HttpStatus.BAD_REQUEST)     @ExceptionHandler(HttpMessageNotReadableException.class)     public String handleHttpMessageNotReadableException(HttpMessageNotReadableException e) {         logger.error("参数解析失败", e);         return "参数解析失败";     }       /**      * 400 - Bad Request      */     @ResponseStatus(HttpStatus.BAD_REQUEST)     @ExceptionHandler(MethodArgumentNotValidException.class)     public String handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {         logger.error("参数验证失败", e);         BindingResult result = e.getBindingResult();         FieldError error = result.getFieldError();         String field = error.getField();         String code = error.getDefaultMessage();         String message = String.format("%s:%s", field, code);         return "参数验证失败="+message;     }       /**      * 400 - Bad Request      */     @ResponseStatus(HttpStatus.BAD_REQUEST)     @ExceptionHandler(BindException.class)     public String handleBindException(BindException e) {         logger.error("参数绑定失败", e);         BindingResult result = e.getBindingResult();         FieldError error = result.getFieldError();         String field = error.getField();         String code = error.getDefaultMessage();         String message = String.format("%s:%s", field, code);         return "参数绑定失败="+message;     }         /**      * 400 - Bad Request      */     @ResponseStatus(HttpStatus.BAD_REQUEST)     @ExceptionHandler(ConstraintViolationException.class)     public String handleServiceException(ConstraintViolationException e) {         logger.error("参数验证失败", e);         Set<ConstraintViolation<?>> violations = e.getConstraintViolations();         ConstraintViolation<?> violation = violations.iterator().next();         String message = violation.getMessage();         return "参数验证失败" + message;     }       /**      * 400 - Bad Request      */     @ResponseStatus(HttpStatus.BAD_REQUEST)     @ExceptionHandler(ValidationException.class)     public String handleValidationException(ValidationException e) {         logger.error("参数验证失败", e);         return "参数验证失败";     }       /**      * 404 - Not Found      */     @ResponseStatus(HttpStatus.NOT_FOUND)     @ExceptionHandler(NoHandlerFoundException.class)     public String noHandlerFoundException(NoHandlerFoundException e) {         logger.error("Not Found", e);         return "Not Found="+e;     }         /**      * 405 - Method Not Allowed      */     @ResponseStatus(HttpStatus.METHOD_NOT_ALLOWED)     @ExceptionHandler(HttpRequestMethodNotSupportedException.class)     public String handleHttpRequestMethodNotSupportedException(HttpRequestMethodNotSupportedException e) {         logger.error("不支持当前请求方法", e);         return "request_method_not_supported";     }       /**      * 415 - Unsupported Media Type      */     @ResponseStatus(HttpStatus.UNSUPPORTED_MEDIA_TYPE)     @ExceptionHandler(HttpMediaTypeNotSupportedException.class)     public String handleHttpMediaTypeNotSupportedException(HttpMediaTypeNotSupportedException e) {         logger.error("不支持当前媒体类型", e);         return "content_type_not_supported";     }     /**      * 业务层需要自己声明异常的情况      */     @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)     @ExceptionHandler(ServiceException.class)     public String handleServiceException(ServiceException e) {         logger.error("业务逻辑异常", e);         return "业务逻辑异常：" + e.getMessage();     }     /**      * 操作数据或库出现异常      */     @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)     @ExceptionHandler(DataDoException.class)     public String handleException(DataDoException e) {         logger.error("操作数据库出现异常:", e);         return "操作数据库出现异常：字段重复、有外键关联等";     }       /**      * 500 - Internal Server Error      */   /*  @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)     @ExceptionHandler(Exception.class)     public String handleException(Exception e) {         logger.error("通用异常", e);         return "500通用异常：" + e.getMessage();     }*/       /**      * 获取其它异常。包括500      * @param e      * @return      * @throws Exception      */    @ExceptionHandler(value = Exception.class)     public String defaultErrorHandler(Exception e){         logger.error("Exception", e);           return "其它异常：" + e.getMessage();       }       }

　　

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package cn.com.cs.core.exception;   /**  * 操作数据或库出现异常  */ public class DataDoException extends RuntimeException{       public DataDoException(String msg) {         super(msg);     } }

　　

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package cn.com.cs.core.exception;   /**  * 业务层需要自己声明异常的情况  */ public class ServiceException extends RuntimeException{       public ServiceException(String msg) {         super(msg);     }   }

　　

#developEnvironment
spring:
    mvc:
      throw-exception-if-no-handler-found: true
    resources:
      add-mappings: false

 

#出现错误时, 直接抛出异常

spring.mvc.throw-exception-if-no-handler-found=true

#不要为我们工程中的资源文件建立映射

spring.resources.add-mappings=false

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