springBoot全局异常处理

import cn.hutool.core.io.IoUtil;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * @version 1.0
 * @date 2022/5/25 10:41
 * @since : JDK 11
 */
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    @Autowired
    private ObjectMapper objectMapper;

    @ExceptionHandler(value = Exception.class)
    public void exceptionHandle(Exception e, HttpServletResponse response) throws IOException {

        e.printStackTrace();

        response.setContentType("application/json; charset=utf-8");

        PrintWriter writer = response.getWriter();

        writer.write(objectMapper.writeValueAsString(R.fail("当前服务发生了一点意外...请稍后在试!")));

        writer.flush();

        IoUtil.close(writer);
    }
}

org.springframework.boot.autoconfigure.EnableAutoConfiguration=com.xxx.xxx.xxx.common.base.GlobalExceptionHandler