如何在Java中获取没有转义序列的post请求的响应体？

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class Main {
    public static void main(String[] args) {
        try {
            // 创建连接
            URL url = new URL("http://example.com");  // 替换为实际的URL地址
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            
            // 设置请求方法和头部信息
            connection.setRequestMethod("POST");
            connection.setRequestProperty("Content-Type", "application/json");
            
            // 设置请求正文内容
            String requestBody = "{\"key\": \"value\"}";  // 替换为实际的POST请求参数
            connection.setDoOutput(true);
            OutputStream outputStream = connection.getOutputStream();
            outputStream.write(requestBody.getBytes());
            outputStream.flush();
            outputStream.close();
            
            // 获取响应流并读取数据
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            StringBuilder response = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            reader.close();
            
            // 输出响应结果
            System.out.println(response.toString());
            
            // 断开连接
            connection.disconnect();
            
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}