package com.cl.common.handler;
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import com.cl.common.constant.MessageConstant;
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import com.cl.common.exception.BaseException;
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import com.cl.common.exception.user.InterceptorException;
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import com.cl.common.result.Result;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.validation.ObjectError;
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import org.springframework.web.bind.MethodArgumentNotValidException;
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import org.springframework.web.bind.annotation.ExceptionHandler;
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import org.springframework.web.bind.annotation.ResponseBody;
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import org.springframework.web.bind.annotation.RestControllerAdvice;
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import java.sql.SQLIntegrityConstraintViolationException;
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/**
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* 全局异常处理器，处理项目中抛出的业务异常
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*/
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@RestControllerAdvice
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@Slf4j
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public class GlobalExceptionHandler {
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/**
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* 捕获业务异常
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* @param ex
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* @return
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*/
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@ExceptionHandler
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public Result exceptionHandler(BaseException ex){
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log.error("异常信息：{}", ex.getMessage());
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return Result.error(ex.getMessage());
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}
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/**
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* 捕获业务异常
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* @param ex
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* @return
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*/
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@ExceptionHandler
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public Result loginHandler(InterceptorException ex){
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log.error("异常信息：{}", ex.getMessage());
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return Result.error(401,ex.getMessage());
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}
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/**
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* 数据校验异常
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* @param e
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* @return
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*/
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@ExceptionHandler(value = MethodArgumentNotValidException.class)
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public Result errorHandler(MethodArgumentNotValidException e){
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// BindingResult bindingResult=exception.getBindingResult();
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String message="";
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// String message=bindingResult.getAllErrors().stream().map(DefaultMessageSourceResolvable::getDefaultMessage).collect(Collectors.joining());
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// for(ObjectError s:e.getAllErrors()){
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// message+=s.getDefaultMessage();
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// break;
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// }
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message= String.valueOf(e.getAllErrors().get(0).getDefaultMessage());
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log.info("数据校验错误：{}",message);
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return Result.error(message);
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}
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/**
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* 处理sql异常
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* @param ex
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* @return
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*/
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@ExceptionHandler
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public Result exceptionHandler(SQLIntegrityConstraintViolationException ex){
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//Duplicate entry 'zhangsan' for key 'idx_username'
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String message = ex.getMessage();
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if (message.contains("Duplicate entry")){
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String[] split = message.split(" ");
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String username=split[2];
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String msg=username+ MessageConstant.ALREADY_EXISTS;
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return Result.error(msg);
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}else {
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log.error(message,ex);
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return Result.error(MessageConstant.UNKNOWN_ERROR);
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}
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}
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}
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