长沙市网站制作电话,网费一年多少钱,工程软件专业,wordpress the_excerpt();在这里首先感谢的就是程序员老罗#xff0c;从他的项目里面学到了这些东西。
首先就是去创建一个SpringBoot项目#xff0c;这里我就不多做赘述了
封装一个统一返回对象
package com.example.demo.vo;public class ResponseVOT {private String status;private In…在这里首先感谢的就是程序员老罗从他的项目里面学到了这些东西。
首先就是去创建一个SpringBoot项目这里我就不多做赘述了
封装一个统一返回对象
package com.example.demo.vo;public class ResponseVOT {private String status;private Integer code;private String info;private T data;public String getStatus() {return status;}public void setStatus(String status) {this.status status;}public Integer getCode() {return code;}public void setCode(Integer code) {this.code code;}public String getInfo() {return info;}public void setInfo(String info) {this.info info;}public T getData() {return data;}public void setData(T data) {this.data data;}
}封装一个异常返回对象
package com.example.demo.exception;
import com.example.demo.entity.enums.ResponseCodeEnum;public class BusinessException extends RuntimeException {private ResponseCodeEnum codeEnum;private Integer code;private String message;public BusinessException(String message, Throwable e) {super(message, e);this.message message;}public BusinessException(String message) {super(message);this.message message;}public BusinessException(Throwable e) {super(e);}public BusinessException(ResponseCodeEnum codeEnum) {super(codeEnum.getMsg());this.codeEnum codeEnum;this.code codeEnum.getCode();this.message codeEnum.getMsg();}public BusinessException(Integer code, String message) {super(message);this.code code;this.message message;}public ResponseCodeEnum getCodeEnum() {return codeEnum;}public Integer getCode() {return code;}Overridepublic String getMessage() {return message;}/*** 重写fillInStackTrace 业务异常不需要堆栈信息提高效率.*/Overridepublic Throwable fillInStackTrace() {return this;}}定义一个请求结果的枚举
package com.example.demo.entity.enums;public enum ResponseCodeEnum {CODE_200(200,请求成功),CODE_404(404,请求地址不存在),CODE_600(600,请求参数错误),CODE_601(601,信息已经存在),CODE_500(500,服务器返回错误请联系管理员);private Integer code;private String msg;ResponseCodeEnum(Integer code, String msg) {this.code code;this.msg msg;}public Integer getCode() {return code;}public String getMsg() {return msg;}
}封装一个统一的返回方法(正确错误异常)
package com.example.demo.controller;import com.example.demo.entity.enums.ResponseCodeEnum;
import com.example.demo.exception.BusinessException;
import com.example.demo.vo.ResponseVO;public class ABaseController {protected static final String STATUS_SUCCESS success;protected static final String STATUS_ERROR error;protected T ResponseVO getSuccessResponseVO(T t){ResponseVOT responseVO new ResponseVO();responseVO.setStatus(STATUS_SUCCESS);responseVO.setCode(ResponseCodeEnum.CODE_200.getCode());responseVO.setInfo(ResponseCodeEnum.CODE_200.getMsg());responseVO.setData(t);return responseVO;}protected T ResponseVO getBusinessErrorResponseVO(BusinessException e,T t){ResponseVO vo new ResponseVO();vo.setStatus(STATUS_ERROR);if(e.getCode() null){vo.setCode(ResponseCodeEnum.CODE_600.getCode());}else{vo.setCode(e.getCode());}vo.setInfo(e.getMessage());vo.setData(t);return vo;}protected T ResponseVO getServerErrorResponseVO(T t){ResponseVO vo new ResponseVO();vo.setStatus(STATUS_ERROR);vo.setCode(ResponseCodeEnum.CODE_500.getCode());vo.setInfo(ResponseCodeEnum.CODE_500.getMsg());vo.setData(t);return vo;}}定义一个全局的异常处理器
package com.example.demo.controller;import com.example.demo.entity.enums.ResponseCodeEnum;
import com.example.demo.exception.BusinessException;
import com.example.demo.vo.ResponseVO;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.validation.BindException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
import org.springframework.web.servlet.NoHandlerFoundException;
import org.yaml.snakeyaml.constructor.DuplicateKeyException;import javax.servlet.http.HttpServletRequest;RestControllerAdvice
public class AGlobalExceptionHandlerController extends ABaseController {private static final Logger logger LoggerFactory.getLogger(AGlobalExceptionHandlerController.class);ExceptionHandler(value Exception.class)public Object handleException(Exception e, HttpServletRequest request){logger.error(请求错误请求地址{},错误信息:, request.getRequestURL(), e);ResponseVO ajaxResponse new ResponseVO();//404if (e instanceof NoHandlerFoundException) {ajaxResponse.setCode(ResponseCodeEnum.CODE_404.getCode());ajaxResponse.setInfo(ResponseCodeEnum.CODE_404.getMsg());ajaxResponse.setStatus(STATUS_ERROR);} else if (e instanceof BusinessException) {//业务错误BusinessException biz (BusinessException) e;ajaxResponse.setCode(biz.getCode() null ? ResponseCodeEnum.CODE_600.getCode() : biz.getCode());ajaxResponse.setInfo(biz.getMessage());ajaxResponse.setStatus(STATUS_ERROR);} else if (e instanceof BindException || e instanceof MethodArgumentTypeMismatchException) {//参数类型错误ajaxResponse.setCode(ResponseCodeEnum.CODE_600.getCode());ajaxResponse.setInfo(ResponseCodeEnum.CODE_600.getMsg());ajaxResponse.setStatus(STATUS_ERROR);} else if (e instanceof DuplicateKeyException) {//主键冲突ajaxResponse.setCode(ResponseCodeEnum.CODE_601.getCode());ajaxResponse.setInfo(ResponseCodeEnum.CODE_601.getMsg());ajaxResponse.setStatus(STATUS_ERROR);} else {ajaxResponse.setCode(ResponseCodeEnum.CODE_500.getCode());ajaxResponse.setInfo(ResponseCodeEnum.CODE_500.getMsg());ajaxResponse.setStatus(STATUS_ERROR);}return ajaxResponse;}}最后进行测试
package com.example.demo.controller;import com.example.demo.entity.enums.ResponseCodeEnum;
import com.example.demo.exception.BusinessException;
import com.example.demo.vo.ResponseVO;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.server.ResponseStatusException;
import org.yaml.snakeyaml.constructor.DuplicateKeyException;RestController
public class hello extends ABaseController {RequestMapping(/hello)public void hello() {throw new BusinessException(ResponseCodeEnum.CODE_404);}
}测试结果
