Springboot全局异常配置超简单

1.创建类

package cn.cyx.common;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.NoHandlerFoundException;

import javax.servlet.http.HttpServletRequest;


/**
 * @author cyx
 * @date 2019/10/30 11:31
 */

@ControllerAdvice
public class GlobalExceptionHandler {

    private Logger logger = LoggerFactory.getLogger(GlobalExceptionHandler.class);

    @ExceptionHandler(value = Exception.class)
    @ResponseBody
    public JsonResult defaultErrorHandler(HttpServletRequest req, Exception e)throws Exception{
        logger.error("",e);
        JsonResult rs = new JsonResult();
        rs.setData(e.getMessage());
        if (e instanceof  org.springframework.web.servlet.NoHandlerFoundException){
            rs.setMsg("404");
        }else{
            rs.setMsg("500");
        }
        rs.setSuccess(false);
        return rs;
    }

}

返回的实体类是自己定义的json实体类

package cn.cyx.common;

/**
 * @author cyx
 * @date 2019/7/31 17:25
 */

public class JsonResult {
    public static final JsonResult Success = new FinalResult(true);
    public static final JsonResult Fail = new FinalResult(false);
    boolean success = true;
    String msg;
    Object data;

    public void setError(String err) {
        this.msg = err;
        this.success = false;
    }

    public JsonResult() {
    }

    public JsonResult(Object data) {
        this.data = data;
    }

    public JsonResult(String err) {
        this.success = err == null || "".equals(err);
        this.msg = err;
    }

    public JsonResult(boolean success) {
        this.success = success;
    }

    public JsonResult(String err, Object data) {
        this.success = err == null || "".equals(err);
        this.data = data;
        this.msg = err;
    }

    public boolean isSuccess() {
        return this.success;
    }

    public String getMsg() {
        return this.msg;
    }

    public Object getData() {
        return this.data;
    }

    public void setSuccess(boolean success) {
        this.success = success;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public void setData(Object data) {
        this.data = data;
    }


}

2.配置文件配置

3.OK测试