update: 提交所有修改和新增功能代码

src/main/java/com/xy/xyaicpzs/service/PageViewService.java

@@ -0,0 +1,92 @@
+package com.xy.xyaicpzs.service;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 页面访问量统计服务
+ * 使用Redis实现PV统计
+ */
+@Service
+@RequiredArgsConstructor
+public class PageViewService {
+
+    private final RedisTemplate<String, Object> redisTemplate;
+
+    // Redis Key前缀
+    private static final String PV_TOTAL_KEY = "pv:total";   // 总PV
+    private static final String PV_DAILY_KEY = "pv:daily:";  // 每日PV前缀
+    private static final int MAX_DAYS = 90;                  // 最大保存天数
+
+    /**
+     * 增加页面访问量
+     */
+    public void incrementPageView() {
+        String today = LocalDate.now().format(DateTimeFormatter.ISO_DATE);
+        
+        // 增加总PV
+        redisTemplate.opsForValue().increment(PV_TOTAL_KEY);
+        
+        // 增加今日总PV
+        String dailyKey = PV_DAILY_KEY + today;
+        redisTemplate.opsForValue().increment(dailyKey);
+        // 设置过期时间为90天
+        redisTemplate.expire(dailyKey, MAX_DAYS, TimeUnit.DAYS);
+    }
+
+    /**
+     * 获取总PV
+     */
+    public Long getTotalPageViews() {
+        Object value = redisTemplate.opsForValue().get(PV_TOTAL_KEY);
+        return value != null ? Long.parseLong(value.toString()) : 0L;
+    }
+
+    /**
+     * 获取今日总PV
+     */
+    public Long getTodayPageViews() {
+        String today = LocalDate.now().format(DateTimeFormatter.ISO_DATE);
+        Object value = redisTemplate.opsForValue().get(PV_DAILY_KEY + today);
+        return value != null ? Long.parseLong(value.toString()) : 0L;
+    }
+
+    /**
+     * 获取指定日期的PV
+     * @param date 日期，格式：yyyy-MM-dd
+     */
+    public Long getDailyPageViews(String date) {
+        Object value = redisTemplate.opsForValue().get(PV_DAILY_KEY + date);
+        return value != null ? Long.parseLong(value.toString()) : 0L;
+    }
+
+    /**
+     * 根据日期范围获取PV统计（近7天/30天/90天）
+     * @param days 天数，最大90天
+     * @return 日期和对应PV的Map，按日期倒序排列
+     */
+    public Map<String, Long> getPageViewsByDays(int days) {
+        // 限制最大天数为90天
+        if (days > MAX_DAYS) {
+            days = MAX_DAYS;
+        }
+        
+        Map<String, Long> result = new LinkedHashMap<>();
+        LocalDate today = LocalDate.now();
+        DateTimeFormatter formatter = DateTimeFormatter.ISO_DATE;
+        
+        for (int i = 0; i < days; i++) {
+            String date = today.minusDays(i).format(formatter);
+            Long pv = getDailyPageViews(date);
+            result.put(date, pv);
+        }
+        return result;
+    }
+}