Android Java POST数据

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class HttpPostExample {
    private final String USER_AGENT = "Mozilla/5.0";

    public static void main(String[] args) throws Exception {
        HttpPostExample http = new HttpPostExample();

        // 发送POST请求
        http.sendPost();
    }

    private void sendPost() throws Exception {
        String url = "http://example.com/api/endpoint";
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // 添加请求头
        con.setRequestMethod("POST");
        con.setRequestProperty("User-Agent", USER_AGENT);
        con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");

        // 设置POST参数
        String postData = "key1=value1&key2=value2";
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(postData);
        wr.flush();
        wr.close();

        int responseCode = con.getResponseCode();
        System.out.println("发送POST请求到URL：" + url);
        System.out.println("POST参数：" + postData);
        System.out.println("响应代码：" + responseCode);

        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        // 打印响应结果
        System.out.println("响应结果：" + response.toString());
    }
}