The list is being sent to the server. Its just that the server is not able to receive the list and print it out. PS: The MyFriend class implements Serializable
On Apr 10, 1:00 am, raqz <[email protected]> wrote: > 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 [email protected] To unsubscribe from this group, send email to [email protected] 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.
