From 73e608df889ebeca1c87cb8d77676923b8872a83 Mon Sep 17 00:00:00 2001
From: dd <gitluke@outlook.com>
Date: Fri, 26 Dec 2025 02:40:01 +0800
Subject: [PATCH] 1
---
src/main/java/com/nq/service/impl/StockServiceImpl.java | 40 +++++++++++++++++---
src/main/java/com/nq/service/impl/PriceServicesImpl.java | 59 +++++++++++++++++++++++------
2 files changed, 80 insertions(+), 19 deletions(-)
diff --git a/src/main/java/com/nq/service/impl/PriceServicesImpl.java b/src/main/java/com/nq/service/impl/PriceServicesImpl.java
index c0a3e1d..b9dab10 100644
--- a/src/main/java/com/nq/service/impl/PriceServicesImpl.java
+++ b/src/main/java/com/nq/service/impl/PriceServicesImpl.java
@@ -109,25 +109,52 @@
}
}
- public String doGet(String pid) {
- // 从配置中获取 API URL，并拼接 key
+ private static String lastResult = null;
+ private static long lastExecuteTime = 0;
+ private static final long MIN_INTERVAL_MS = 3000;
+ private static final Object cacheLock = new Object();
+
+ public static String doGet(String pid) {
+ long currentTime = System.currentTimeMillis();
+
+ // 第一次快速检查（不加锁）
+ if (lastResult != null && (currentTime - lastExecuteTime) < MIN_INTERVAL_MS) {
+ return lastResult;
+ }
+
+ // 同步块内再次检查并执行
+ synchronized (cacheLock) {
+ currentTime = System.currentTimeMillis();
+ if (lastResult != null && (currentTime - lastExecuteTime) < MIN_INTERVAL_MS) {
+ return lastResult;
+ }
+
+ // 执行POST请求
+ String newResult = doActualPost(pid);
+
+ // 更新缓存
+ lastResult = newResult;
+ lastExecuteTime = System.currentTimeMillis();
+
+ return newResult;
+ }
+ }
+
+ private static String doActualPost(String pid) {
String apiUrl = PropertiesUtil.getProperty("JS_IN_HTTP_URL") + "stock?key=" + PropertiesUtil.getProperty("JS_IN_KEY");
- String result = null;
+
try {
- Thread.sleep(3000);
URL url = new URL(apiUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
- // 设置请求方法为 POST
connection.setRequestMethod("POST");
- // 设置请求头
- connection.setRequestProperty("Content-Type", "application/json; charset=utf-8");
- connection.setDoOutput(true); // 允许向连接输出
+ connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
+ connection.setDoOutput(true);
+ connection.setConnectTimeout(5000);
+ connection.setReadTimeout(10000);
- // 构建 POST 数据
String postData = "pid=" + pid;
- // 发送 POST 请求
try (OutputStream os = connection.getOutputStream()) {
byte[] input = postData.getBytes("utf-8");
os.write(input, 0, input.length);
@@ -136,17 +163,23 @@
// 读取响应
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String inputLine;
- StringBuffer response = new StringBuffer();
+ StringBuilder response = new StringBuilder();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
- result = response.toString();
+
+ return response.toString();
+
} catch (Exception e) {
e.printStackTrace();
+ // 返回缓存或错误信息
+ if (lastResult != null) {
+ return lastResult;
+ }
+ return "{\"error\":\"请求失败:" + e.getMessage() + "\"}";
}
- return result;
}
@Override
diff --git a/src/main/java/com/nq/service/impl/StockServiceImpl.java b/src/main/java/com/nq/service/impl/StockServiceImpl.java
index d606bfe..73243ce 100644
--- a/src/main/java/com/nq/service/impl/StockServiceImpl.java
+++ b/src/main/java/com/nq/service/impl/StockServiceImpl.java
@@ -432,14 +432,41 @@
}
- /*股票日线-K线*/
+ /*股票日线-K线*/
+ // 只需要缓存一个最近返回的Object
+ private static Object lastResult = null;
+ private static long lastExecuteTime = 0;
+ private static final long MIN_INTERVAL_MS = 3000;
+ private static final Object cacheLock = new Object();
+
@Override
public Object getKData(String pid, String interval, String stockType) {
- try {
- Thread.sleep(3000);
- }catch (Exception e){
- e.printStackTrace();
+ long currentTime = System.currentTimeMillis();
+
+ // 第一次快速检查（不加锁）
+ if (lastResult != null && (currentTime - lastExecuteTime) < MIN_INTERVAL_MS) {
+ return lastResult;
}
+
+ // 同步块内再次检查并更新
+ synchronized (cacheLock) {
+ currentTime = System.currentTimeMillis();
+ if (lastResult != null && (currentTime - lastExecuteTime) < MIN_INTERVAL_MS) {
+ return lastResult;
+ }
+
+ // 获取新数据
+ Object newResult = doGetKData(pid, interval, stockType);
+
+ // 更新缓存
+ lastResult = newResult;
+ lastExecuteTime = System.currentTimeMillis();
+
+ return newResult;
+ }
+ }
+
+ private Object doGetKData(String pid, String interval, String stockType) {
EStockType eStockType = EStockType.getEStockTypeByCode(stockType);
Object object = HttpUtil.get(eStockType.stockUrl + "kline?pid=" + pid + "&interval=" + interval + "&key=" + eStockType.stockKey);
Gson gson = new Gson();
@@ -449,12 +476,13 @@
BigDecimal nowPrice = iPriceServices.getNowPrice(stock.getStockCode());
Map singleStock = getSingleStock(stock.getStockCode());
StockVO stockVO = (StockVO)singleStock.get("stock");
- // 修改 List 中的最后一条数据
+
kData lastData = dataList.get(dataList.size() - 1);
lastData.setC(nowPrice.toString());
lastData.setO(stockVO.getOpen_px());
lastData.setH(stockVO.getToday_max());
lastData.setL(stockVO.getToday_min());
+
return gson.toJson(dataList);
}
--
Gitblit v1.9.3