android访问jsp文件

URL url = new URL("http://yourserver.com/yourfile.jsp");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
int responseCode = connection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
    // 处理响应
} else {
    // 处理错误
}

InputStream inputStream = connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
StringBuilder result = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
    result.append(line);
}
reader.close();
// 解析 JSON 数据
JSONObject jsonObject = new JSONObject(result.toString());

URL url = new URL("https://yourserver.com/yourfile.jsp");
HttpsURLConnection httpsConnection = (HttpsURLConnection) url.openConnection();
httpsConnection.setSSLSocketFactory(SSLUtils.getSocketFactory());

import android.os.AsyncTask;
import android.os.Bundle;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class MainActivity extends AppCompatActivity {

    private TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        textView = findViewById(R.id.textView);
        new FetchDataTask().execute("http://yourserver.com/yourfile.jsp");
    }

    private class FetchDataTask extends AsyncTask<String, Void, String> {

        @Override
        protected String doInBackground(String... urls) {
            try {
                URL url = new URL(urls[0]);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.setRequestMethod("GET");
                InputStream inputStream = connection.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
                StringBuilder result = new StringBuilder();
                String line;
                while ((line = reader.readLine()) != null) {
                    result.append(line);
                }
                reader.close();
                return result.toString();
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        }

        @Override
        protected void onPostExecute(String result) {
            if (result != null) {
                textView.setText(result);
            } else {
                textView.setText("Error fetching data");
            }
        }
    }
}