package com.example.business.controller;

import com.example.business.vo.JsonResult;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.Set;

/**
 * redis
 */
@Controller
@RequestMapping(value = "/redis")
public class RedisController {
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 清除所有緩存
     *
     * @return
     */
    @ResponseBody
    @RequestMapping(value = "/del-cache", produces = "application/json;charset=UTF-8", method = RequestMethod.POST)
    public JsonResult delCache() {
        boolean state = false;
        Set<String> keys = redisTemplate.keys("*");
        for (String key : keys) {
            redisTemplate.delete(key);
            state = true;
        }
        if (state) {
            return JsonResult.success("清除緩存成功！");
        } else {
            return JsonResult.error("無緩存數(shù)據(jù)可清除！");
        }
    }
}