仿牛客网社区项目(三十三)统计访问量
统计访问量
UV(Unique Visitor)#
- 独立访客,需通过用户IP排重新统计数据。
- 每次访问都要进行统计。
- HyperLoglog,性能好,且存储空间小。
DAU(Daily Active User)#
- 日活跃用户,需通过用户ID排重新统计数据。
- 访问过一次,则认为其为活跃。QW
- Bitmap,性能好、且可以统计精确的结果。
新建DataService类进行统计操作。表现层一分为二,首先是何时记录这个值,其次是查看。记录值在拦截器写比较合适。新建DataInterceptor和DataController。
返回时使用forward转发,表明当前请求仅完成一半,还需另外一个方法继续处理请求。
在RedisKey中定义变量
private static final String PREFIX_UV = "uv";
private static final String PREFIX_DAU = "dau";
// 单日活跃用户
public static String getDAUKey(String date) {
return PREFIX_DAU + SPLIT + date;
}
// 区间活跃用户
public static String getDAUKey(String startDate, String endDate) {
return PREFIX_DAU + SPLIT + startDate + SPLIT + endDate;
}
编写Dataservice
package com.nowcoder.community.service;
import com.nowcoder.community.util.RedisKeyUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.connection.RedisStringCommands;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
@Service
public class DataService {
@Autowired
private RedisTemplate redisTemplate;
private SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd");
// 将指定的IP计入UV
public void recordUV(String ip) {
String redisKey = RedisKeyUtil.getUVKey(df.format(new Date()));
redisTemplate.opsForHyperLogLog().add(redisKey, ip);
}
// 统计指定日期范围内的UV
public long calculateUV(Date start, Date end) {
if (start == null || end == null) {
throw new IllegalArgumentException("参数不能为空!");
}
// 整理该日期范围内的key
List<String> keyList = new ArrayList<>();
Calendar calendar = Calendar.getInstance();
calendar.setTime(start);
while (!calendar.getTime().after(end)) {
String key = RedisKeyUtil.getUVKey(df.format(calendar.getTime()));
keyList.add(key);
calendar.add(Calendar.DATE, 1);
}
// 合并这些数据
String redisKey = RedisKeyUtil.getUVKey(df.format(start), df.format(end));
redisTemplate.opsForHyperLogLog().union(redisKey, keyList.toArray());
// 返回统计的结果
return redisTemplate.opsForHyperLogLog().size(redisKey);
}
// 将指定用户计入DAU
public void recordDAU(int userId) {
String redisKey = RedisKeyUtil.getDAUKey(df.format(new Date()));
redisTemplate.opsForValue().setBit(redisKey, userId, true);
}
// 统计指定日期范围内的DAU
public long calculateDAU(Date start, Date end) {
if (start == null || end == null) {
throw new IllegalArgumentException("参数不能为空!");
}
// 整理该日期范围内的key
List<byte[]> keyList = new ArrayList<>();
Calendar calendar = Calendar.getInstance();
calendar.setTime(start);
while (!calendar.getTime().after(end)) {
String key = RedisKeyUtil.getDAUKey(df.format(calendar.getTime()));
keyList.add(key.getBytes());
calendar.add(Calendar.DATE, 1);
}
// 进行OR运算
return (long) redisTemplate.execute(new RedisCallback() {
@Override
public Object doInRedis(RedisConnection connection) throws DataAccessException {
String redisKey = RedisKeyUtil.getDAUKey(df.format(start), df.format(end));
connection.bitOp(RedisStringCommands.BitOperation.OR,
redisKey.getBytes(), keyList.toArray(new byte[0][0]));
return connection.bitCount(redisKey.getBytes());
}
});
}
}
增加拦截器
@Component
public class DataInterceptor implements HandlerInterceptor {
@Autowired
private DataService dataService;
@Autowired
private HostHolder hostHolder;
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
// 统计UV
String ip = request.getRemoteHost();
dataService.recordUV(ip);
// 统计DAU
User user = hostHolder.getUser();
if (user != null) {
dataService.recordDAU(user.getId());
}
return true;
}
}
注册在Mvc中
registry.addInterceptor(dataInterceptor)
.excludePathPatterns("/**/*.css", "/**/*.js", "/**/*.png", "/**/*.jpg", "/**/*.jpeg");
}
定义DataController
@Controller
public class DataController {
@Autowired
private DataService dataService;
// 统计页面
@RequestMapping(path = "/data", method = {RequestMethod.GET, RequestMethod.POST})
public String getDataPage() {
return "/site/admin/data";
}
// 统计网站UV
@RequestMapping(path = "/data/uv", method = RequestMethod.POST)
public String getUV(@DateTimeFormat(pattern = "yyyy-MM-dd") Date start,
@DateTimeFormat(pattern = "yyyy-MM-dd") Date end, Model model) {
long uv = dataService.calculateUV(start, end);
model.addAttribute("uvResult", uv);
model.addAttribute("uvStartDate", start);
model.addAttribute("uvEndDate", end);
return "forward:/data";
}
// 统计活跃用户
@RequestMapping(path = "/data/dau", method = RequestMethod.POST)
public String getDAU(@DateTimeFormat(pattern = "yyyy-MM-dd") Date start,
@DateTimeFormat(pattern = "yyyy-MM-dd") Date end, Model model) {
long dau = dataService.calculateDAU(start, end);
model.addAttribute("dauResult", dau);
model.addAttribute("dauStartDate", start);
model.addAttribute("dauEndDate", end);
return "forward:/data";
}
}
date.html
【推荐】国内首个AI IDE,深度理解中文开发场景,立即下载体验Trae
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步
· 【自荐】一款简洁、开源的在线白板工具 Drawnix
· 没有Manus邀请码?试试免邀请码的MGX或者开源的OpenManus吧
· 无需6万激活码!GitHub神秘组织3小时极速复刻Manus,手把手教你使用OpenManus搭建本
· C#/.NET/.NET Core优秀项目和框架2025年2月简报
· DeepSeek在M芯片Mac上本地化部署