springBoot 全局异常捕捉（里面包含个各种常见异常）

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> 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