What is correct way to implement the HTTPConnection in Blackberry
I tired to connect my app with the remote server and pass few credentials to it, but i am always getting a same response from the server. I tried changing all the parameter value and other request header values that i am passing, but still i can't reach the exact solution. I need to you, whether am i using the correct way to ping with the server and to pass the values.
Below is the code that i am using , Please let me know if i have gone wrong somewhere.
// HttpServiceConnection.java
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import javax.microedition.io.HttpsConnection;
import net.rim.device.api.system.DeviceInfo;
import com.beacon.bb.app.util.WSMConfig;
/**
* @author N********
*
*/
public class HttpServiceCommunication {
public HttpServiceCommunication() {
System.out.println("Http Service Communication Called");
}
public String sendHttpPost(String uri, String email, String uid,
String pass) throws Exception { // Hashtable header
String response = null;
// create the connection...
System.out.println("Url " + uri);
HttpConnection _connection = null;
String params = null;
if (DeviceInfo.isSimulator()) {
params = ";deviceside=false";
} else {
params = ";deviceside=true;interface=wifi";
}
String URL = uri + params;
System.out.println("Connecting to Http Connection ");
try {
_connection = (HttpConnection) Connector.open(URL);
} catch(Exception e){
e.printStackTrace();
}
if (_connection != null) {
_connection.setRequestMethod(HttpConnection.POST);
System.out.println("After Request Method ");
_connection.setRequestProperty("User-Agent",
"Profile/MIDP-2.0 Configuration/CLDC-1.1");
_connection.setRequestProperty("Content-Language", "en-US");
_connection.setRequestProperty("Content-type", "application/json");
// setting header if any
// if (header != null) {
// for (Enumeration en = header.keys(); en.hasM开发者_如何转开发oreElements();) {
// String key = (String) en.nextElement();
// String value = (String) header.get(key);
// _connection.setRequestProperty(key, value);
_connection.setRequestProperty("email", email);
//_connection.setRequestProperty("method","login");
_connection.setRequestProperty("uid", uid);
_connection.setRequestProperty("password", pass);
//_connection.setRequestProperty("uid", uid);
// }
// }
System.out.println("Open Output Stream ");
// System.out.println("Data is "+data);
OutputStream _outputStream = _connection.openOutputStream();
//System.out.println("Writing data ");
//_outputStream.write(data);
// _outputStream.flush(); // Optional, getResponseCode will flush
// Getting the response code will open the connection, send the
// request, and read the HTTP response headers.
// The headers are stored until requested.
try {
System.out.println("Response Code :" + _connection.getResponseCode());
int rc = _connection.getResponseCode();
System.out.println("Response Code :" + rc);
System.out.println("Response Code :" + rc + " if HTTP OK :"
+ (rc == HttpConnection.HTTP_OK));
if (rc == HttpConnection.HTTP_FORBIDDEN) {
System.out.println("FORBIDDEN");
response = WSMConfig.NOT_AUTH;
} else if (rc != HttpConnection.HTTP_OK) {
response = WSMConfig.NOT_OK;
} else if (rc == HttpConnection.HTTP_OK) {
InputStream _inputStream = _connection.openInputStream();
final int MAX_LENGTH = 128;
byte[] buf = new byte[MAX_LENGTH];
int total = 0;
while (total < MAX_LENGTH) {
int count = _inputStream.read(buf, total, MAX_LENGTH
- total);
if (count < 0) {
break;
}
total += count;
}
response = new String(buf, 0, total);
//ByteBuffer bb = new ByteBuffer(_inputStream);
//response = bb.getString();
System.out.println("Response from Server :" + response);
// close everything out
{
if (_inputStream != null)
try {
_inputStream.close();
} catch (Exception e) {
}
if (_outputStream != null)
try {
_outputStream.close();
} catch (Exception e) {
}
if (_connection != null)
try {
_connection.close();
} catch (Exception e) {
}
}
}
else {
response = WSMConfig.SERVER_ERROR;
}
}catch(Exception e){
e.printStackTrace();
}
}
//System.out.println("Response :" + response);
return response;
}
}
I am getting a response like {"code":0,"err":"Missing 'method'."}
Any Help is Appreciable....
Thanks
Try this out when you're wanting to pass data to the server:
//encode your data to send
URLEncodedPostData encoder = new URLEncodedPostData(null, false);
encoder.encode("email", email);
encoder.encode("method", "login");
encoder.encode("uid", uid);
encoder.encode("password", pass);
//Now you open up an output stream to write to the connection
OutputStream os = _connection.openOutputStream();
os.write(encoder.getBytes();
os.flush();
And then continue with the rest of your logic
精彩评论