工具方法

src/main/java/cn/stock/market/utils/HttpRequest.java

@@ -2,6 +2,7 @@ package cn.stock.market.utils;
 
 
 import java.io.BufferedReader;
+import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.net.HttpURLConnection;
@@ -142,6 +143,52 @@ public class HttpRequest {
         return text;
     }
 
+    public static String doTwelveGet(String url) throws Exception{
+    	int maxRetries = 3;
+        for (int retry = 1; retry <= maxRetries; retry++) {    	
+	    	BufferedReader reader = null;
+	    	StringBuilder response = new StringBuilder();
+	    	try {
+		        URL obj = new URL(url);
+		        HttpURLConnection con = (HttpURLConnection) obj.openConnection();
+		        con.setRequestMethod("GET");
+		        con.setRequestProperty("Accept", "application/json");
+		        con.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
+		        //模拟postman请求，否则返回403
+		        con.setRequestProperty("User-Agent", "PostmanRuntime/7.26.8");
+		        
+		        int responseCode = con.getResponseCode();
+		        if (responseCode == HttpURLConnection.HTTP_OK) {
+		        	reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
+		            String inputLine;
+		            while ((inputLine = reader.readLine()) != null) {
+		                response.append(inputLine);
+		            }
+		            reader.close();
+		            return response.toString();
+		        } else {
+		            log.error("HTTP request failed with response code: " + responseCode);
+		        }
+	    	}catch(Exception e) {
+	    		log.error("请求twelvedata数据url:{},exception:{} ", url,e);
+	    	}finally {
+	    		 if (reader != null) {
+	                 reader.close();
+	             }
+	    	}
+            // 如果不是最后一次重试，则等待一段时间再进行下一次重试
+            if (retry < maxRetries) {
+                try {
+                    // 1秒钟
+                    Thread.sleep(1000);
+                } catch (InterruptedException e) {
+                    Thread.currentThread().interrupt();
+                }
+            }
+        }
+        return null;
+    }
+    
 
     public static void main(String[] args) {
         String url = "";