Android手机客户端与Servlet交换数据(by quqi99)

                                      

 转自( http://blog.csdn.net/quqi99 ) 

手机端：

package zhanghua.test.dataexchange;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class DataExchange extends Activity {
 private EditText titleText;
 private EditText bodyText;

 @Override
 protected void onCreate(Bundle icicle) {
  super.onCreate(icicle);
  setContentView(R.layout.note_edit);

  titleText = (EditText) findViewById(R.id.title);
  bodyText = (EditText) findViewById(R.id.body);

  Button confirmButton = (Button) findViewById(R.id.confirm);

  confirmButton.setOnClickListener(new View.OnClickListener() {

   public void onClick(View arg0) {
    // Bundle bundle = new Bundle();
    // bundle.putString(Notepadv3.KEY_TITLE,
    // titleText.getText().toString());
    // bundle.putString(Notepadv3.KEY_BODY,
    // bodyText.getText().toString());
    // if (rowId != null) {
    // bundle.putLong(Notepadv3.KEY_ROW_ID, rowId);
    // }
    // setResult(RESULT_OK, null, bundle);
    // finish();

    String u = "http://172.17.1.122:8083/ServerApp/ServletApp ";
    URL url = null;
    HttpURLConnection httpurlconnection = null;
    try {
     url = new URL(u);
     httpurlconnection = (HttpURLConnection) url
       .openConnection();
     httpurlconnection.setDoOutput(true);
     httpurlconnection.setRequestMethod("POST");
     // httpurlconnection.setRequestProperty("Content-Language","en-CA");
     // httpurlconnection.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
     // httpurlconnection.setRequestProperty("Connection","Keep-Alive");
     // //始终使用同一个HTTP连接来多次传递数据
     // 手机传给电脑的数据
     DataOutputStream dos = new DataOutputStream(
       httpurlconnection.getOutputStream());
     dos.writeUTF(titleText.getText().toString());
     dos.writeUTF(bodyText.getText().toString());
     dos.flush();
     dos.close();
     // httpurlconnection.getOutputStream().flush();
     // httpurlconnection.getOutputStream().close();
     int code = httpurlconnection.getResponseCode();
     System.out.println("code   " + code);

     // 接收servlet响应数据
     DataInputStream dis = new DataInputStream(httpurlconnection
       .getInputStream());
     String return1Str = dis.readUTF();
     String return2Str = dis.readUTF();
     System.out.println("手机接收到servlet端传来的第一个参数为:" + return1Str);
     titleText.setText(return1Str); // 显示
     // 主要起调试的作用，调试的结果将显示在WTK的控制台中
     System.out.println("手机接收到servlet端传来的第二个参数为:" + return2Str);
     bodyText.setText(return2Str); // 显示
    } catch (Exception e) {
     e.printStackTrace();
    } finally {
     if (httpurlconnection != null)
      httpurlconnection.disconnect();
    }

   }

  });
 }
}

 

2、电脑端

package quqi;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * @date    2007/12/10
 * @author  张华
 * @descrip 模拟服务器端
 */
public class ServletApp extends HttpServlet {
 public void doGet(HttpServletRequest request, HttpServletResponse response)
   throws IOException, ServletException {
  response.setContentType("text/html; charset=GBK");

  // 设置响应属性
  // 接收客户端的请求
  InputStream is = request.getInputStream();
  DataInputStream dis = new DataInputStream(is);
  String tf1Str = dis.readUTF();
  String tf2Str = dis.readUTF();
  System.out.println("servlet端接收到手机传来的第一个参数为：" + tf1Str);
  // 主要起调试的作用，调试的结果显示在tomcat的启动DOS窗口中
  System.out.println("servlet端接收到手机传来的第二个参数为：" + tf2Str);
  // 对接收的参数进行处理
  String return1Str = tf1Str.concat(":早上好!");
  // 在接收到的参数后连接字符串
  String return2Str = tf2Str.concat(":晚上好!");
  // 发送处理后的参数给手机
  DataOutputStream dos = new DataOutputStream(response.getOutputStream());
  dos.writeUTF(return1Str);
  dos.writeUTF(return2Str);
  System.out.println("servlet传递给手机的第一个参数为:" + return1Str);
  System.out.println("servlet传递给手机的第二个参数为:" + return2Str);
 }

 public void doPost(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {
  doGet(request, response);
 }

 public void destroy() {
 }
 // 清除资源
}