From 9652bbc4a506f46986e298735b27f281ebf06124 Mon Sep 17 00:00:00 2001
From: dd <gitluke@outlook.com>
Date: Fri, 26 Dec 2025 11:39:16 +0800
Subject: [PATCH] 1
---
src/main/java/com/nq/service/impl/PriceServicesImpl.java | 106 ++++++++++++++++++++++++++++++++++++++++++++--------
1 files changed, 89 insertions(+), 17 deletions(-)
diff --git a/src/main/java/com/nq/service/impl/PriceServicesImpl.java b/src/main/java/com/nq/service/impl/PriceServicesImpl.java
index f5a88cf..9c3f47c 100644
--- a/src/main/java/com/nq/service/impl/PriceServicesImpl.java
+++ b/src/main/java/com/nq/service/impl/PriceServicesImpl.java
@@ -15,6 +15,7 @@
import com.nq.pojo.*;
import com.nq.service.IPriceServices;
import com.nq.service.IStockConfigServices;
+import com.nq.utils.PropertiesUtil;
import com.nq.utils.http.HttpClientRequest;
import com.nq.utils.redis.RedisKeyUtil;
import com.nq.utils.timeutil.TimeUtil;
@@ -22,8 +23,7 @@
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
+import java.io.*;
import java.lang.reflect.Type;
import java.math.BigDecimal;
import java.io.BufferedReader;
@@ -33,6 +33,8 @@
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
import com.fasterxml.jackson.databind.ObjectMapper;
@Service
@@ -69,7 +71,7 @@
String s = doGet(stock.getStockCode());
if(null != s){
Map<String, Object> stringObjectMap = jsonToMap(s);
- return new BigDecimal(stringObjectMap.get("last").toString()).multiply(new BigDecimal(stockSetting.getPrice()));
+ return new BigDecimal(stringObjectMap.get("Last").toString()).multiply(new BigDecimal(stockSetting.getPrice()));
}
}
}
@@ -78,7 +80,7 @@
String s = doGet(stock.getStockCode());
if(null != s) {
Map<String, Object> stringObjectMap = jsonToMap(s);
- return new BigDecimal(stringObjectMap.get("last").toString());
+ return new BigDecimal(stringObjectMap.get("Last").toString());
}
return BigDecimal.ZERO;
}
@@ -109,27 +111,97 @@
}
}
- public String doGet(String pid){
- EStockType eStockType = EStockType.getEStockTypeByCode("IN");
- String apiUrl = eStockType.stockUrl+"?pid="+pid+"&key="+eStockType.stockKey;
- try {
- URL url = new URL(apiUrl);
- HttpURLConnection connection = (HttpURLConnection) url.openConnection();
- connection.setRequestMethod("GET");
+ private static class CacheEntry {
+ String result;
+ long lastExecuteTime;
+ }
- BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
- String inputLine;
- StringBuffer response = new StringBuffer();
+ private static final Map<String, CacheEntry> cacheMap = new ConcurrentHashMap<>();
+ private static final long MIN_INTERVAL_MS = 3000;
+ private static final Object globalLock = new Object();
- while ((inputLine = in.readLine()) != null) {
+ public static String doGet(String pid) {
+ long currentTime = System.currentTimeMillis();
+
+ // 1. 先检查该pid是否有缓存
+ CacheEntry entry = cacheMap.get(pid);
+ if (entry != null && (currentTime - entry.lastExecuteTime) < MIN_INTERVAL_MS) {
+ return entry.result;
+ }
+
+ // 2. 使用双重检查锁定更新缓存
+ synchronized (getLockForPid(pid)) {
+ currentTime = System.currentTimeMillis();
+ entry = cacheMap.get(pid);
+
+ if (entry != null && (currentTime - entry.lastExecuteTime) < MIN_INTERVAL_MS) {
+ return entry.result;
+ }
+
+ // 3. 执行实际请求
+ String newResult = doActualPost(pid);
+
+ // 4. 更新该pid的缓存
+ CacheEntry newEntry = new CacheEntry();
+ newEntry.result = newResult;
+ newEntry.lastExecuteTime = System.currentTimeMillis();
+ cacheMap.put(pid, newEntry);
+
+ return newResult;
+ }
+ }
+
+ // 为每个pid提供独立的锁对象，避免不同pid间的阻塞
+ private static final Map<String, Object> pidLocks = new ConcurrentHashMap<>();
+
+ private static Object getLockForPid(String pid) {
+ return pidLocks.computeIfAbsent(pid, k -> new Object());
+ }
+
+
+ private static String doActualPost(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
+ BufferedReader in = new BufferedReader(
+ new InputStreamReader(connection.getInputStream()));
+ String inputLine;
+ StringBuilder response = new StringBuilder();
+
+ while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
+
return response.toString();
- } catch (Exception e) {
+
+ } catch (Exception e) {
e.printStackTrace();
+ // 如果请求失败，返回该pid的旧缓存（如果有）
+ CacheEntry oldEntry = cacheMap.get(pid);
+ if (oldEntry != null && oldEntry.result != null) {
+ return oldEntry.result;
+ }
+ return "{\"error\":\"请求失败:" + e.getMessage() + "\"}";
}
- return null;
}
@Override
--
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