500 RESPONSE转换为STRING JAVA时的状态

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

public class HttpResponseToString {
    public static void main(String[] args) {
        try {
            // 创建URL对象
            URL url = new URL("http://example.com/api/endpoint");

            // 打开连接
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();

            // 设置请求方法
            connection.setRequestMethod("GET");

            // 获取响应码
            int responseCode = connection.getResponseCode();

            // 判断响应码
            if (responseCode == HttpURLConnection.HTTP_OK) {
                // 获取输入流并读取响应内容
                BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                String line;
                StringBuilder response = new StringBuilder();
                while ((line = reader.readLine()) != null) {
                    response.append(line);
                }
                reader.close();

                // 将响应内容转换为字符串
                String responseString = response.toString();

                // 输出响应字符串
                System.out.println(responseString);
            } else {
                System.out.println("请求失败，响应码：" + responseCode);
            }

            // 关闭连接
            connection.disconnect();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}