随着全球经济形势的变化，贵金属如黄金、白银等一直是投资者关注的重点。为了及时掌握贵金属的市场动态，许多专业的投资者和交易平台都依赖于实时的市场数据。传统的手动查询方式往往无法满足快速决策的需求，因此，越来越多的人开始转向通过API接口来获取实时贵金属价格。

API（应用程序编程接口）为用户提供了一种自动化获取数据的方式，能够高效地查询贵金属的实时价格数据，并在多个系统中进行应用。本文将介绍如何通过API接口查询贵金属的实时价格，并探讨如何将这些数据整合到自己的交易系统或分析工具中，以支持投资决策和策略制定。

示例

通过接口查询现货白银XAGUSD的实时价格：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;// 接口注册地址：https://alltick.iopublic class HttpJavaExample {public static void main(String[] args) {try {// 查询现货白银（XAGUSD）实时数据String url = "http://quote.aatest.online/quote-metal-api/price?token=e945d7d9-9e6e-4721-922a-7251a9d311d0-1678159756806&query=%7B%22trace%22%20%3A%20%22java_http_test1%22%2C%22data%22%20%3A%20%7B%22symbol%22%20%3A%20%22XAGUSD%22%7D%7D";// 创建URL对象URL obj = new URL(url);// 打开连接HttpURLConnection con = (HttpURLConnection) obj.openConnection();// 设置请求方法con.setRequestMethod("GET");// 获取响应码int responseCode = con.getResponseCode();System.out.println("Response Code: " + responseCode);// 读取响应内容BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));String inputLine;StringBuffer response = new StringBuffer();while ((inputLine = in.readLine()) != null) {response.append(inputLine);}in.close();// 输出返回的数据System.out.println(response.toString());} catch (Exception e) {e.printStackTrace();}}
}

通过WebSockets订阅现货白银实时价格：

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.net.URI;
import java.net.URISyntaxException;import javax.websocket.*;// 接口注册地址：https://alltick.io@ClientEndpoint
public class WebSocketJavaExample {private Session session;@OnOpenpublic void onOpen(Session session) {System.out.println("Connected to server");this.session = session;}@OnMessagepublic void onMessage(String message) {System.out.println("Received message: " + message);}@OnClosepublic void onClose(Session session, CloseReason closeReason) {System.out.println("Disconnected from server");}@OnErrorpublic void onError(Throwable throwable) {System.err.println("Error: " + throwable.getMessage());}public void sendMessage(String message) throws Exception {this.session.getBasicRemote().sendText(message);}public static void main(String[] args) throws Exception, URISyntaxException, DeploymentException, IOException, IllegalArgumentException, SecurityException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException {// WebSocket服务器的URI，替换为您实际使用的WebSocket端点URLWebSocketContainer container = ContainerProvider.getWebSocketContainer();URI uri = new URI("wss://quote.aatest.online/quote-metal-ws-api?token=e945d7d9-9e6e-4721-922a-7251a9d311d0-1678159756806"); WebSocketJavaExample client = new WebSocketJavaExample();container.connectToServer(client, uri);// 发送查询现货白银XAGUSD的消息String requestMessage = "{"+ "\"cmd_id\": 22002, "+ "\"seq_id\": 123, "+ "\"trace\": \"3baaa938-f92c-4a74-a228-fd49d5e2f8bc-1678419657806\", "+ "\"data\": {"+ "\"symbol_list\": ["+ "{"+ "\"code\": \"XAGUSD\", "+ "\"depth_level\": 5"+ "}"+ "]"+ "}"+ "}";client.sendMessage(requestMessage);// 等待直到用户输入以关闭程序System.in.read();}
}