springBoot 全局异常捕捉

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();
 
    }
 
}

　　

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);
    }
}

　　

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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