//package com.fdkankan.web.config;
//
//import com.alibaba.csp.sentinel.adapter.spring.webmvc.callback.BlockExceptionHandler;
//import com.alibaba.csp.sentinel.slots.block.BlockException;
//import com.alibaba.csp.sentinel.slots.block.authority.AuthorityException;
//import com.alibaba.csp.sentinel.slots.block.degrade.DegradeException;
//import com.alibaba.csp.sentinel.slots.block.flow.FlowException;
//import com.alibaba.csp.sentinel.slots.block.flow.param.ParamFlowException;
//import com.alibaba.csp.sentinel.slots.system.SystemBlockException;
//import com.fasterxml.jackson.databind.ObjectMapper;
//import com.fdkankan.common.response.ResultData;
//import lombok.extern.slf4j.Slf4j;
//import org.springframework.http.MediaType;
//import org.springframework.stereotype.Component;
//
//import javax.servlet.http.HttpServletRequest;
//import javax.servlet.http.HttpServletResponse;
//import java.io.IOException;
//
///**
// * <p>
// * sentinel统一异常处理
// * </p>
// *
// * @author dengsixing
// * @since 2022/1/26
// **/
//@Slf4j
//@Component
//public class SentinelUrlBlockHandler implements BlockExceptionHandler {
//    @Override
//    public void handle(HttpServletRequest request, HttpServletResponse response, BlockException e) throws IOException {
//        String msg = null;
//        if (e instanceof FlowException) {
//            msg = "限流了";
//        } else if (e instanceof DegradeException) {
//            msg = "降级了";
//        } else if (e instanceof ParamFlowException) {
//            msg = "热点参数限流";
//        } else if (e instanceof SystemBlockException) {
//            msg = "系统规则（负载/...不满足要求）";
//        } else if (e instanceof AuthorityException) {
//            msg = "授权规则不通过";
//        }
//        // http状态码
//        response.setStatus(500);
//        response.setCharacterEncoding("utf-8");
//        response.setHeader("Content-Type", "application/json;charset=utf-8");
//        response.setContentType(MediaType.APPLICATION_JSON_VALUE);
//
//        new ObjectMapper()
//                .writeValue(
//                        response.getWriter(),
//                        ResultData.error(-1, msg)
//                );
//    }
//}