异常处理工具类

1.全局异常处理类

package com.wang.servicebase.exceptionhandler;

import com.wang.commonutils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

@ControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    @ExceptionHandler(Exception.class)
    @ResponseBody
    public R error(Exception e){
        e.printStackTrace();
        return R.error().message("执行了全局异常！！！");

    }

    @ExceptionHandler(ArithmeticException.class)
    @ResponseBody
    public R error(ArithmeticException e){
        e.printStackTrace();
        return R.error().message("执行了ArithmeticException异常！！！");

    }

    @ExceptionHandler(WangException.class)
    @ResponseBody
    public R error(WangException e){
        log.error(e.getMessage());
        e.printStackTrace();
        return R.error().code(e.getCode()).message(e.getMsg());

    }

}

2.自定义异常处理

package com.wang.servicebase.exceptionhandler;

import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class WangException extends RuntimeException{
    @ApiModelProperty(value = "状态码")
    private Integer code;
    private String msg;
}