From 63769df44b9baf8339f6e0e151f4b6908386087c Mon Sep 17 00:00:00 2001
From: dd <gitluke@outlook.com>
Date: Fri, 26 Dec 2025 11:53:32 +0800
Subject: [PATCH] 1
---
src/main/java/com/nq/utils/redis/RedisKeyUtil.java | 152 ++++++++++++++++++++++++++++++++++++++++++++------
1 files changed, 133 insertions(+), 19 deletions(-)
diff --git a/src/main/java/com/nq/utils/redis/RedisKeyUtil.java b/src/main/java/com/nq/utils/redis/RedisKeyUtil.java
index 5920848..731b0bb 100644
--- a/src/main/java/com/nq/utils/redis/RedisKeyUtil.java
+++ b/src/main/java/com/nq/utils/redis/RedisKeyUtil.java
@@ -1,17 +1,29 @@
package com.nq.utils.redis;
import com.alibaba.fastjson2.JSONObject;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.gson.Gson;
import com.nq.enums.EStockType;
import com.nq.pojo.DataStockBean;
import com.nq.pojo.Stock;
import com.nq.pojo.StockRealTimeBean;
+import com.nq.utils.PropertiesUtil;
import com.nq.utils.stock.sina.StockApi;
import org.apache.http.util.TextUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
import java.math.BigDecimal;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.locks.ReentrantLock;
public class RedisKeyUtil {
@@ -51,35 +63,137 @@
stockRealTimeBean = new Gson().fromJson(cacheBaseData, StockRealTimeBean.class);
}
if(stockRealTimeBean == null){
+ String s = doPost(stock.getStockCode());
+ Map<String, Object> stringObjectMap = jsonToMap(s);
stockRealTimeBean = new StockRealTimeBean();
- stockRealTimeBean.setPcp("0.00");
- stockRealTimeBean.setLast("0.00");
- stockRealTimeBean.setHigh("0.00");
- stockRealTimeBean.setLow("0.00");
- stockRealTimeBean.setBid("0.00");
- stockRealTimeBean.setPc("0.00");
- stockRealTimeBean.setAsk("0.00");
+ stockRealTimeBean.setPcp(stringObjectMap.get("ChgPct").toString());
+ stockRealTimeBean.setLast(stringObjectMap.get("Last").toString());
+ stockRealTimeBean.setHigh(stringObjectMap.get("High").toString());
+ stockRealTimeBean.setLow(stringObjectMap.get("Low").toString());
+ stockRealTimeBean.setBid(stringObjectMap.get("Id").toString());
+ stockRealTimeBean.setPc(stringObjectMap.get("PrevClose").toString());
+ stockRealTimeBean.setAsk(stringObjectMap.get("Ask").toString());
}
stockRealTimeBean.setPcp(stockRealTimeBean.getPcp().replace("%",""));
return stockRealTimeBean;
}
+ public static Map<String, Object> jsonToMap(String json) {
+ ObjectMapper objectMapper = new ObjectMapper();
+ try {
+ Object[] array = objectMapper.readValue(json, Object[].class);
+ Gson gson = new Gson();
+ String s = gson.toJson(array[0]);
+ Map<String, Object> map = objectMapper.readValue(s, Map.class);
+ return map;
+ } catch (JsonProcessingException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ // 缓存条目类
+ private static class CacheEntry {
+ String result;
+ long lastExecuteTime;
+
+ CacheEntry(String result, long lastExecuteTime) {
+ this.result = result;
+ this.lastExecuteTime = lastExecuteTime;
+ }
+ }
+
+ // 按pid存储缓存
+ private static final Map<String, CacheEntry> cacheMap = new ConcurrentHashMap<>();
+
+ // 按pid存储锁对象，实现细粒度锁
+ private static final Map<String, ReentrantLock> lockMap = new ConcurrentHashMap<>();
+
+ private static final long MIN_INTERVAL_MS = 3000;
+
+ public static String doPost(String pid) {
+ // 1. 快速检查缓存
+ long currentTime = System.currentTimeMillis();
+ CacheEntry cached = cacheMap.get(pid);
+
+ if (cached != null && (currentTime - cached.lastExecuteTime) < MIN_INTERVAL_MS) {
+ return cached.result;
+ }
+
+ // 2. 获取该pid对应的锁
+ ReentrantLock pidLock = lockMap.computeIfAbsent(pid, k -> new ReentrantLock());
+
+ // 3. 加锁执行
+ pidLock.lock();
+ try {
+ // 4. 双重检查
+ currentTime = System.currentTimeMillis();
+ cached = cacheMap.get(pid);
+
+ if (cached != null && (currentTime - cached.lastExecuteTime) < MIN_INTERVAL_MS) {
+ return cached.result;
+ }
+
+ // 5. 执行实际请求
+ String result = executePostRequest(pid);
+
+ // 6. 更新缓存
+ if (result != null) {
+ cacheMap.put(pid, new CacheEntry(result, System.currentTimeMillis()));
+ } else if (cached != null) {
+ // 请求失败，返回旧缓存
+ return cached.result;
+ }
+
+ return result;
+
+ } finally {
+ pidLock.unlock();
+ }
+ }
+
+ private static String executePostRequest(String pid) {
+ String apiUrl = PropertiesUtil.getProperty("JS_IN_HTTP_URL") +
+ "stock?key=" + PropertiesUtil.getProperty("JS_IN_KEY");
+
+ try {
+ URL url = new URL(apiUrl);
+ HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+
+ connection.setRequestMethod("POST");
+ connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
+ connection.setDoOutput(true);
+ connection.setConnectTimeout(5000);
+ connection.setReadTimeout(10000);
+
+ String postData = "pid=" + pid;
+
+ try (OutputStream os = connection.getOutputStream()) {
+ byte[] input = postData.getBytes("utf-8");
+ os.write(input, 0, input.length);
+ }
+
+ // 读取响应
+ try (BufferedReader in = new BufferedReader(
+ new InputStreamReader(connection.getInputStream()))) {
+
+ StringBuilder response = new StringBuilder();
+ String inputLine;
+ while ((inputLine = in.readLine()) != null) {
+ response.append(inputLine);
+ }
+
+ return response.toString();
+ }
+
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null; // 返回null表示请求失败
+ }
+ }
public static void setCacheCompanies(Stock stock,String companiesInfo){
RedisShardedPoolUtils.set(RedisKeyConstant.RK_COMPANY_INFO+":"+stock.getStockType()+":"+stock.getStockCode(),
new Gson().toJson(companiesInfo));
}
-
-
- public static JSONObject getCacheCompanies(Stock stock){
- String companiesInfo = RedisShardedPoolUtils.get(RedisKeyConstant.RK_COMPANY_INFO+":"+stock.getStockType()+":"+stock.getStockCode());
- if(companiesInfo.isEmpty()){
- return null;
- }
- return JSONObject.parseObject(companiesInfo);
- }
-
-
-
}
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