使用get方式提交数据

时间：2022-10-12 17:47:32
get提交代码
 import java.io.InputStream;

 import java.net.HttpURLConnection;

 import java.net.MalformedURLException;

 import java.net.URL;

 import java.net.URLDecoder;

 import java.net.URLEncoder;

 import com.itheima.htmlviewer.utils.Utils;

 import android.os.Bundle;

 import android.os.Handler;

 import android.os.Message;

 import android.app.Activity;

 import android.view.Menu;

 import android.view.View;

 import android.widget.EditText;

 import android.widget.Toast;

 public class MainActivity extends Activity {

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.activity_main);

     }

     Handler handler = new Handler(){

         public void handleMessage(android.os.Message msg) {

             Toast.makeText(MainActivity.this, (String)msg.obj, 0).show();

         }

     };

     public void click(View v){

         EditText et_name = (EditText) findViewById(R.id.et_name);

         EditText et_pass = (EditText) findViewById(R.id.et_pass);

         final String name = et_name.getText().toString();

         final String pass = et_pass.getText().toString();

         Thread t = new Thread(){

             @Override

             public void run() {

                 //提交的数据需要经过url编码，英文和数字编码后不变

                 @SuppressWarnings("deprecation")

                 String path = "http://192.168.13.13/Web2/servlet/LoginServlet?name=" + URLEncoder.encode(name) + "&pass=" + pass;

                 try {

                     URL url = new URL(path);

                     HttpURLConnection conn = (HttpURLConnection) url.openConnection();

                     conn.setRequestMethod("GET");

                     conn.setConnectTimeout(5000);

                     conn.setReadTimeout(5000);

                     if(conn.getResponseCode() == 200){

                         InputStream is =conn.getInputStream();

                         String text = Utils.getTextFromStream(is);

                         Message msg = handler.obtainMessage();

                         msg.obj = text;

                         handler.sendMessage(msg);

                     }

                 } catch (Exception e) {

                     // TODO Auto-generated catch block

                     e.printStackTrace();

                 }

             }

         };

         t.start();

     }

 }

util

 import java.io.ByteArrayOutputStream;

 import java.io.IOException;

 import java.io.InputStream;

 public class Utils {

     public static String getTextFromStream(InputStream is){

         byte[] b = new byte[1024];

         int len = 0;

         //创建字节数组输出流，读取输入流的文本数据时，同步把数据写入数组输出流

         ByteArrayOutputStream bos = new ByteArrayOutputStream();

         try {

             while((len = is.read(b)) != -1){

                 bos.write(b, 0, len);

             }

             //把字节数组输出流里的数据转换成字节数组

             String text = new String(bos.toByteArray());

             return text;

         } catch (IOException e) {

             // TODO Auto-generated catch block

             e.printStackTrace();

         }

         return null;

     }

 }

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