package com.nq.utils.redis;
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import com.alibaba.fastjson2.JSONObject;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.google.gson.Gson;
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import com.nq.enums.EStockType;
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import com.nq.pojo.DataStockBean;
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import com.nq.pojo.Stock;
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import com.nq.pojo.StockRealTimeBean;
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import com.nq.utils.PropertiesUtil;
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import com.nq.utils.stock.sina.StockApi;
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import org.apache.http.util.TextUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.math.BigDecimal;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.util.Map;
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import java.util.concurrent.locks.ReentrantLock;
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public class RedisKeyUtil {
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private static final Logger log = LoggerFactory.getLogger(RedisKeyUtil.class);
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/**
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* 缓存股票数据源到redis
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* */
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public static void setCaCheKeyBaseStock(EStockType eStockType, DataStockBean dataStockBean){
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RedisShardedPoolUtils.set(RedisKeyConstant.RK_BASE_STOCK+":"+eStockType.getCode()+":"+dataStockBean.getId(),
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new Gson().toJson(dataStockBean));
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}
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/**
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* 获取股票数据
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* */
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public static DataStockBean getCacheBaseStock(Stock stock){
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String cacheBaseData = RedisShardedPoolUtils.get(RedisKeyConstant.RK_BASE_STOCK+":"+stock.getStockType()+":"+stock.getStockCode());
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return new Gson().fromJson(cacheBaseData, DataStockBean.class);
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}
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/**
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* 保存实时数据到redis
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* */
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public static void setCacheRealTimeStock(EStockType eStockType, StockRealTimeBean stockRealTimeBean){
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RedisShardedPoolUtils.set(RedisKeyConstant.RK_REAL_TIME_STOCK+":"+eStockType.getCode()+":"+stockRealTimeBean.getPid(),
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new Gson().toJson(stockRealTimeBean));
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}
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public static StockRealTimeBean getCacheRealTimeStock(Stock stock){
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StockRealTimeBean stockRealTimeBean = null;
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String cacheBaseData = RedisShardedPoolUtils.get(RedisKeyConstant.RK_REAL_TIME_STOCK+":"+stock.getStockType()+":"+stock.getStockCode());
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if(!TextUtils.isEmpty(cacheBaseData)){
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stockRealTimeBean = new Gson().fromJson(cacheBaseData, StockRealTimeBean.class);
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}
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if(stockRealTimeBean == null){
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String s = doPost(stock.getStockCode());
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Map<String, Object> stringObjectMap = jsonToMap(s);
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stockRealTimeBean = new StockRealTimeBean();
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stockRealTimeBean.setPcp(stringObjectMap.get("ChgPct").toString());
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stockRealTimeBean.setLast(stringObjectMap.get("Last").toString());
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stockRealTimeBean.setHigh(stringObjectMap.get("High").toString());
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stockRealTimeBean.setLow(stringObjectMap.get("Low").toString());
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stockRealTimeBean.setBid(stringObjectMap.get("Id").toString());
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stockRealTimeBean.setPc(stringObjectMap.get("PrevClose").toString());
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stockRealTimeBean.setAsk(stringObjectMap.get("Ask").toString());
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}
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stockRealTimeBean.setPcp(stockRealTimeBean.getPcp().replace("%",""));
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return stockRealTimeBean;
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}
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public static Map<String, Object> jsonToMap(String json) {
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ObjectMapper objectMapper = new ObjectMapper();
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try {
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Object[] array = objectMapper.readValue(json, Object[].class);
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Gson gson = new Gson();
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String s = gson.toJson(array[0]);
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Map<String, Object> map = objectMapper.readValue(s, Map.class);
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return map;
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} catch (JsonProcessingException e) {
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throw new RuntimeException(e);
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}
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}
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private static final ReentrantLock lock = new ReentrantLock();
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private static String lastResult = null;
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private static long lastExecuteTime = 0;
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private static final long MIN_INTERVAL_MS = 3000;
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public static String doPost(String pid) {
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// 快速检查缓存
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long currentTime = System.currentTimeMillis();
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if (lastResult != null && (currentTime - lastExecuteTime) < MIN_INTERVAL_MS) {
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return lastResult;
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}
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// 需要获取锁执行新请求
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return executeWithLock(pid);
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}
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private static String executeWithLock(String pid) {
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String apiUrl = PropertiesUtil.getProperty("JS_IN_HTTP_URL") + "stock?key=" + PropertiesUtil.getProperty("JS_IN_KEY");
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lock.lock();
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try {
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// 双检锁：再次检查缓存
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long currentTime = System.currentTimeMillis();
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if (lastResult != null && (currentTime - lastExecuteTime) < MIN_INTERVAL_MS) {
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return lastResult;
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}
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// 执行POST请求
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String result = null;
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try {
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URL url = new URL(apiUrl);
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HttpURLConnection connection = (HttpURLConnection) url.openConnection();
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connection.setRequestMethod("POST");
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connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
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connection.setDoOutput(true);
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String postData = "pid=" + pid;
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try (OutputStream os = connection.getOutputStream()) {
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byte[] input = postData.getBytes("utf-8");
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os.write(input, 0, input.length);
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}
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BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
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String inputLine;
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StringBuilder response = new StringBuilder();
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while ((inputLine = in.readLine()) != null) {
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response.append(inputLine);
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}
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in.close();
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result = response.toString();
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// 更新缓存
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lastResult = result;
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lastExecuteTime = System.currentTimeMillis();
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} catch (Exception e) {
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e.printStackTrace();
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// 请求失败时返回缓存
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if (lastResult != null) {
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return lastResult;
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}
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}
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return result;
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} finally {
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lock.unlock();
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}
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}
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public static void setCacheCompanies(Stock stock,String companiesInfo){
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RedisShardedPoolUtils.set(RedisKeyConstant.RK_COMPANY_INFO+":"+stock.getStockType()+":"+stock.getStockCode(),
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new Gson().toJson(companiesInfo));
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}
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public static JSONObject getCacheCompanies(Stock stock){
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String companiesInfo = RedisShardedPoolUtils.get(RedisKeyConstant.RK_COMPANY_INFO+":"+stock.getStockType()+":"+stock.getStockCode());
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if(companiesInfo.isEmpty()){
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return null;
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}
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return JSONObject.parseObject(companiesInfo);
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}
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}
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