Java获取不同网站访问量

以不同表单id为参数，区分不同网站

package com.example.datafile.controller;

import com.example.datafile.common.utils.RedisClientTemplate;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@RestController
@Api(tags = "获取访问量")
@RequestMapping("/counts")
public class CountServlet {

    @Autowired
    private RedisTemplate redisTemplate;
    @Autowired
    private RedisClientTemplate redisClientTemplate;

    @GetMapping("")
    @ApiOperation("获取表单访问量")
    protected Integer doGet(HttpServletRequest request, HttpServletResponse response, @RequestParam long formId)
            throws ServletException, IOException {

        int totalCount = 1;//默认访问量为1
        //获取网站访问量
        Object count = request.getServletContext().getAttribute(String.valueOf(formId));
        //判断count是否为null，不为null表示曾经访问过，直接将count赋值给totalCount
        if (count != null) {
            totalCount = (int) count;
        }
        //访问次数累加
        request.getServletContext().setAttribute(String.valueOf(formId), totalCount + 1);
        redisClientTemplate.setToRedis("formId_" + String.valueOf(formId),String.valueOf(totalCount));
        return totalCount;
    }

}

参考：
https://blog.csdn.net/weixin_36151775/article/details/114671994