blackberry unable to send url request to server continuously - url

Question

this is the code i wrote to send the url request using a thread:
while(true)
{
String url="http://192.168.1.7:8084/SFTS/updateLocation.jsp?empid=12304&lat=16.23&lon=21.998;interface=wifi";
try{
StreamConnection conn = (StreamConnection)Connector.open(url, Connector.READ_WRITE);
conn.openInputStream();
Thread.sleep(30*1000);
conn.close();
}catch(Exception e)
{
e.printStackTrace();
}
try {
Thread.sleep(30*1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
the code i used to this thread:
Calendar cal=Calendar.getInstance();
long time=cal.get(Calendar.HOUR);
add(new RichTextField(String.valueOf(time)));
(new test()).start();
by using this code i am able to send one request successfully but after that server is not receiving other request. please provide me a solution.

Answer 1

Firstly, when you're using a while loop like this, you shouldn't put the sleep within the try method.
while(true)
{
try{
String url="http://192.19.18.10:8084/SFTS/updateLocation.jsp?empid=12304&lat="+lan+".23&lon=21.998;interface=wifi";
StreamConnection conn = (StreamConnection)Connector.open(url, Connector.READ_WRITE);
conn.openInputStream();;
}catch(Exception e)
{
e.printStackTrace();
}
try {
Thread.sleep(30*1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Secondly, you're constantly trying to create a new stream without first closing the previous connection. Either read up on how StreamConnection works effectively, or simply use ConnectionFactory and not StreamConnection.
ConnectionFactory connFact = new ConnectionFactory();
ConnectionDescriptor connDesc;
connDesc = connFact.getConnection(url);
if (connDesc != null) {
try {
HttpConnection httpConn;
httpConn = (HttpConnection) connDesc.getConnection();
httpConn.close();
} catch (IOException e) {
System.err.println("Caught IOException: " + e.getMessage());
}
The above is for OS 5 and above, in your case... as the connection seems to work the first time, in your existing code I would try simply closing the connection using:
conn.close();