spring-boot，全局异常统一拦截处理

外链：访问地址

1、创建自定义的异常RRException

package com.blog.common.utils;

/**
 * @author wangfj
 * @date 2018-11-19
 * @description 自定义异常
 */
public class RRException extends RuntimeException {
    private static final long serialVersionUID = 1L;

    private String msg;
    private int code = 500;
    private Object data;

    public Object getData() {
        return data;
    }

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

    public RRException(String msg) {
        super(msg);
        this.msg = msg;
    }

    public RRException(String msg, Throwable e) {
        super(msg, e);
        this.msg = msg;
    }

    public RRException(String msg, int code) {
        super(msg);
        this.msg = msg;
        this.code = code;
    }

    public RRException(String msg, int code, Throwable e) {
        super(msg, e);
        this.msg = msg;
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

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

    public int getCode() {
        return code;
    }

    public void setCode(int code) {
        this.code = code;
    }
}

2、创建异常处理配置类MyExceptionHandler

package com.blog.index.config;

import com.blog.common.result.R;
import com.blog.common.utils.RRException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 * @author wangfujie
 * @date 2018-12-12 16:45
 * @description 全局异常捕获处理
 */
@ControllerAdvice
public class MyExceptionHandler {

    /**
     * 统一异常处理
     * @param e
     * @return
     */
    @ResponseBody
    @ExceptionHandler(value = Exception.class)
    public Object errorHandler(Exception e){
        e.printStackTrace();
        return R.error(110, e.getMessage());
    }

    /**
     * 自定义异常的处理
     * @param e
     * @return
     */
    @ResponseBody
    @ExceptionHandler(value = RRException.class)
    public Object myErrorHandler(RRException e){
        e.printStackTrace();
        return R.error(e.getCode(), e.getMsg());
    }
}

3、在代码中手动抛出异常即可

throw new RRException("该用户没有权限！", 504);

4、返回效果

{"msg":"该用户没有权限！","code":504,"needRefresh":true}

最后

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