Android/Java发送包含未重新格式化为UTF-8的字符的http post请求

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

public class HttpPostExample {
    public static void main(String[] args) throws Exception {
        // 请求URL
        String url = "https://example.com/api";
        
        // 请求参数
        String param = "data=" + URLEncoder.encode("未重新格式化的字符", "UTF-8");
        
        // 创建URL对象
        URL obj = new URL(url);
        
        // 创建HttpURLConnection对象
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();
        
        // 设置请求方法为POST
        con.setRequestMethod("POST");
        
        // 设置请求头部
        con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
        
        // 启用输出流
        con.setDoOutput(true);
        
        // 获取输出流对象
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        
        // 发送请求参数
        wr.writeBytes(param);
        wr.flush();
        wr.close();
        
        // 获取响应状态码
        int responseCode = con.getResponseCode();
        
        // 读取响应内容
        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuilder response = new StringBuilder();
        
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();
        
        // 打印响应结果
        System.out.println("Response Code: " + responseCode);
        System.out.println("Response Content: " + response.toString());
    }
}