provider-service/src/main/java/cn/aiyangniu/api/controller/other/OtherController.java

package cn.aiyangniu.api.controller.other;

import cn.aiyangniu.api.common.util.AuthUtil;
import cn.aiyangniu.api.common.util.RedisUtil;
import com.alibaba.fastjson.JSONObject;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * 一些常用的业务接口类
 *
 * @author Henry Hall
 * @since 2019-10-22
 */
@RestController
@Api(tags="常用的接口")
@RequestMapping("/others")
public class OtherController {

    @Resource
    private AuthUtil authUtil;

    @Resource
    private RedisUtil redisUtil;

    /**
     * getSysTime 获取当前服务器系统时间
     */
    @ApiOperation(value = "获取当前服务器系统时间")
    @RequestMapping(value="/getSysTime", method= RequestMethod.GET)
    public Map<String, Object> getSysTime(HttpServletRequest req) {
        Map<String, Object> result = new HashMap<>();
        SimpleDateFormat sdt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"), sd = new SimpleDateFormat("yyyy-MM-dd");// 设置日期格式
        String type = req.getParameter("type"), dt = ("1".equals(type) ? sdt.format(new Date()) : sd.format(new Date()));
        result.put("retCode", "1001");
        result.put("retMsg", "获取成功！");
        result.put("time", dt);
        return result;
    }

    /**
     * getSysRandom 获取随机数返回给前端，同时存储到缓冲数据库中
     */
    @ApiOperation(value = "获取请求的随机码")
    @RequestMapping(value="/getSysRandom", method= RequestMethod.GET)
    public Map<String, Object> getSysRandom(HttpServletRequest req) {
        Map<String, Object> result = new HashMap<>();
        String sysRandom, token, retCode, retMsg, userId;
        token = req.getHeader("Authorization");
        if(token == null || "null".equals(token)) {
            retCode = "1004";
            retMsg = "对不起，您没有登录，请重新登录！";
        } else {
            JSONObject jo = authUtil.getUserSession(token);
            if(jo != null) {
                userId = jo.getString("userId");
                if(redisUtil.exists("sysRandom" + userId)) {
                    sysRandom = redisUtil.get("sysRandom" + userId);
                    long expire = redisUtil.getExpire("sysRandom" + userId);
                    if(expire <= 0) {
                        sysRandom = String.valueOf(Math.random());
                        redisUtil.add("sysRandom" + userId, sysRandom, 3600);
                    }
                }else {
                    sysRandom = String.valueOf(Math.random());
                    redisUtil.add("sysRandom" + userId, sysRandom, 3600);
                }
                result.put("sysRandom", sysRandom);
                retCode = "1001";
                retMsg = "获取成功！";
            } else {
                retCode = "1006";
                retMsg = "获取失败！";
            }
        }
        result.put("retCode", retCode);
        result.put("retMsg", retMsg);
        return result;
    }
}