使用Java获取XML API响应

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;

public class XMLAPIExample {
    public static void main(String[] args) {
        try {
            // 创建HTTP客户端
            CloseableHttpClient httpClient = HttpClients.createDefault();
            
            // 创建HTTP GET请求
            HttpGet httpGet = new HttpGet("API的URL");
            
            // 发起请求并获取响应
            CloseableHttpResponse response = httpClient.execute(httpGet);
            
            // 从响应中获取XML响应体
            HttpEntity entity = response.getEntity();
            String xmlResponse = EntityUtils.toString(entity);
            
            // 关闭响应和HTTP客户端
            response.close();
            httpClient.close();
            
            // 解析XML响应
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document document = builder.parse(xmlResponse);
            
            // 提取所需数据
            NodeList nodeList = document.getElementsByTagName("tag");
            for (int i = 0; i < nodeList.getLength(); i++) {
                Node node = nodeList.item(i);
                String data = node.getTextContent();
                System.out.println("Data: " + data);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}