Hi, I am trying to send a list from the android device to a webserver which will receive the list and send it back to the android device. I have written the below code and it runs fine if I just send values but when I send an object, the app freezes. Could someone please help me out in this.
Thanks Code for client package com.httpurl; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.ObjectOutputStream; import java.io.OutputStreamWriter; import java.net.URL; import java.net.URLConnection; import java.util.ArrayList; import java.util.List; import java.util.StringTokenizer; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { public static List<MyFriend> listOfFriends = new ArrayList<MyFriend>(); /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getFriendsList(); getconnection(listOfFriends); setContentView(R.layout.main); TextView tv = new TextView(this); tv.setText("hello"); setContentView(tv); } public void getFriendsList() { String FName =null; String LName =null; String Latitude =null; String Longitude =null; String TimeStamp =null; String line[] = new String[3]; line[0]= "Al#Rb#23.44#34.44#4.45"; line[1]= "Al#Az#33.44#44.44#5.45"; line[2]= "Kl#Az#53.44#454.44#6.45"; for(int k=0;k<=2;k++){ StringTokenizer tokens=new StringTokenizer(line[k],"#"); try{ while(tokens.hasMoreTokens()) { FName=tokens.nextToken(); LName=tokens.nextToken(); Latitude=tokens.nextToken(); Longitude=tokens.nextToken(); TimeStamp=tokens.nextToken(); listOfFriends.add(new MyFriend(FName,LName,Latitude,Longitude,TimeStamp)); } } catch (Exception e){ Toast.makeText(this, "Some prob here:"+e.getLocalizedMessage(), Toast.LENGTH_SHORT).show(); e.printStackTrace(); } } } private void getconnection(List<MyFriend> list) { try{ URL url = new URL("http://10.0.2.2/HelloServlet/NewServlet"); URLConnection conn = url.openConnection(); conn.setDoOutput(true); Toast.makeText(getBaseContext(), "connection set", Toast.LENGTH_SHORT).show(); //OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream()); ObjectOutputStream out = new ObjectOutputStream(conn.getOutputStream()); out.writeObject(list); //writer.write("value=hello&anotherValue=how r u"); out.flush(); Toast.makeText(getBaseContext(), "sent the list", Toast.LENGTH_SHORT).show(); String line; BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream())); while ((line = reader.readLine()) != null) { System.out.println(line); Toast.makeText(getBaseContext(), "received from server"+line, Toast.LENGTH_SHORT).show(); } out.close(); reader.close(); } catch (Exception e){ } } } The Server code is protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, ClassNotFoundException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); ObjectInputStream ois = new ObjectInputStream(request.getInputStream()); List<MyFriend> list = (List<MyFriend>) ois.readObject(); Iterator itr = list.iterator(); while(itr.hasNext()){ MyFriend obj = (MyFriend) itr.next(); out.println("recived:"+obj.getFName()); } String value2 = request.getParameter("anotherValue"); try { //out.println("<html>"); //out.println("<head>"); //out.println("<title>Servlet NewServlet</title>"); //out.println("</head>"); //out.println("<body>"); //out.println("<h1>Servlet NewServlet at " + request.getContextPath () + "</h1>"); //out.println("recived"+value+" nextvalue"+value2); //out.println("</body>"); //out.println("</html>"); } finally { out.close(); } } -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en To unsubscribe, reply using "remove me" as the subject.