继续上面的问题，改成java示例

好的，以下是一个简单的Java示例，展示如何使用CSDN开发的ChitGPT与用户进行对话：

import java.util.Scanner;
import org.json.JSONObject;
import java.net.HttpURLConnection;
import java.net.URL;
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class ChitGPTDemo {

  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    while (true) {
      System.out.print("User: ");
      String input = scanner.nextLine();
      String response = getResponseFromChitGPT(input);
      System.out.println("ChitGPT: " + response);
    }
  }

  private static String getResponseFromChitGPT(String input) {
    try {
      URL url = new URL("https://api.chitgpt.csdn.net/generate/");
      HttpURLConnection con = (HttpURLConnection) url.openConnection();
      con.setRequestMethod("POST");
      con.setRequestProperty("Content-Type", "application/json");
      con.setRequestProperty("Accept", "application/json");
      con.setDoOutput(true);
      String requestBody = "{\"text\":\"" + input + "\"}";
      byte[] requestBodyBytes = requestBody.getBytes("utf-8");
      con.getOutputStream().write(requestBodyBytes);

      BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
      String inputLine;
      StringBuilder response = new StringBuilder();
      while ((inputLine = in.readLine()) != null) {
        response.append(inputLine);
      }
      in.close();

      JSONObject jsonResponse = new JSONObject(response.toString());
      String generatedText = jsonResponse.getString("text");

      return generatedText;
    } catch (Exception e) {
      e.printStackTrace();
      return "Sorry, an error occurred.";
    }
  }
}

这个示例中，我们使用了Java的URL和HttpURLConnection类来向CSDN开发的ChitGPT API发送POST请求。在发送请求时，我们需要将用户输入的文本作为请求体发送给API，API将会返回生成的文本作为响应。最后，我们将响应返回给用户。