springboot 异常捕获和处理

springboot 异常捕获和处理

package com.leo23.emp.exception;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class BusinessException extends RuntimeException {
    private Integer code;
    private String message;
}

异常捕获处理

package com.leo23.emp.exception;

import com.leo23.emp.common.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

@RestControllerAdvice
@Slf4j
public class EmpExceptionHandler {
    // 系统异常
    @ExceptionHandler(Exception.class)
    public R systemException(Exception e) {
        // 1 记录异常的信息到日志文件
        log.error("系统异常", e);
        // 2 提示用户
        return R.error("系统繁忙，请稍后重试");
    }

    // 业务异常
    @ExceptionHandler(BusinessException.class)
    public R businessException(BusinessException e) {
        // 1 记录异常的信息到日志文件
        log.error("系统异常", e);
        // 2 提示用户
        return R.error(e.getMessage() + "-->" + e.getCode());
    }
}