4dkankan-manage-jp/src/main/java/com/fdkankan/manage_jp/exception/GlobalExceptionHandler.java

package com.fdkankan.manage_jp.exception;

import com.fdkankan.manage_jp.common.ResultCode;
import com.fdkankan.manage_jp.common.ResultData;
import lombok.extern.slf4j.Slf4j;
import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestControllerAdvice;

/**
 * 全局异常处理器
 */
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 处理未知异常
     */
    @ResponseBody
    @ExceptionHandler(value = Exception.class)
    public ResultData exceptionHandler(Exception e) throws Exception {
        log.error("服务错误:", e);
        return ResultData.error( 500, e.getCause().getMessage());
    }

    /**
     * 处理业务异常
     */
    @ResponseBody
    @ExceptionHandler(value = BusinessException.class)
    public ResultData businessExceptionHandler(BusinessException e) {
        log.info("业务异常code:{},message:{}", e.getCode(), e.getMessage());
        return ResultData.error(e.getCode(), e.getMessage());
    }
    /**
     * 处理业务异常
     */
    @ResponseBody
    @ExceptionHandler(value = DataIntegrityViolationException.class)
    public ResultData DataIntegrityViolationExceptionHandler(DataIntegrityViolationException e) {
        log.error("mysql服务错误:", e);
        if(e.getCause().getMessage().contains("Data too long")){
            return ResultData.error(ResultCode.DATA_TOO_LONG);
        }
        return ResultData.error( 500, e.getCause().getMessage());
    }
}