Http method Post is not working in the Simulator (SDK 7.0) and not in the device with BB 5.0

I am a novice in the development of BB.

I tried to implement a simple Http Post request, but when running it in the Simulator (SDK 7.0), he gave an IOException.

I've first implemented the Http Get request and was getting the same error but that was resolved by adding "; deviceSide = true'on demand.

But while making the Post request parameters(username and password) were supposed to be written to outputstream open after successfully HttpConnection. I get the answer I used to get when I send two parameters as null.

But the app even when built against JRE 5.0 crashes.

Hi simon, peter

I made changes to my connection as as well as u say it, but still no idea if I am wrong, if I do one.

Now without using any suffix his run on my device but same answer as it was a GET request.

A modified version of class ServerConnection (in post above)

package com.httppostdemo.classes;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

import javax.microedition.io.HttpConnection;

import net.rim.device.api.io.transport.ConnectionDescriptor;
import net.rim.device.api.io.transport.ConnectionFactory;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;

public class HttpPostConnection extends Thread {

    private String mUrl = null;
    private byte[] mParams = null;

    public HttpPostConnection(String iUrl, byte[] iParams) {
        mUrl = iUrl;
        mParams = iParams;
    }

    public void run() {
        super.run();
        ConnectionFactory connectionFactory = new ConnectionFactory();
        ConnectionDescriptor connDescriptor = (ConnectionDescriptor) connectionFactory
                .getConnection(mUrl);
        HttpConnection connection;
        OutputStream outStream;
        InputStream responseData;
        final ByteArrayOutputStream baos;
        int responseCode;
        int bytesRead;

        if (connDescriptor != null) {
            try {

                connection = (HttpConnection) connDescriptor.getConnection();
                connection.setRequestMethod(HttpConnection.POST);
                connection.setRequestProperty("Content-Type",
                        "application/xwww-form-urlencoded");
                connection.setRequestProperty("Content-Length",
                        String.valueOf(mParams.length));

                outStream = connection.openOutputStream();
                outStream.write(mParams);
                outStream.close();

                responseCode = connection.getResponseCode();
                if (responseCode != HttpConnection.HTTP_OK) {
                    connection.close();
                    return;
                }

                baos = new ByteArrayOutputStream();
                responseData = connection.openInputStream();
                byte[] buffer = new byte[10000];
                bytesRead = responseData.read(buffer);
                while (bytesRead > 0) {
                    baos.write(buffer, 0, bytesRead);
                    bytesRead = responseData.read(buffer);
                }
                UiApplication.getUiApplication().invokeLater(new Runnable() {

                    public void run() {
                        Dialog.alert(new String(baos.toByteArray()));
                    }
                });
                baos.close();
                connection.close();

            } catch (final Exception e) {
                UiApplication.getUiApplication().invokeLater(new Runnable() {

                    public void run() {
                        Dialog.alert("Exception :: " + e.getMessage());
                    }
                });
            }

        }
    }

}

Tags: BlackBerry Developers

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