I wanna develop a application in Android to connet HttpServer.
But there is something must be wrong.so if anyone read it or have
advice ,please tell me.I was troubled by this issue.
i am a green hand in Android , so careful and prolixity,please be
patient. If you are happy to give my opinion I will be very grateful,
if you do not mind, I will often ask your advice.thank you.
part 1 :...i have created two TextView to input userid and
password;so i try to get the InpustStream
code:
switch(v.getId()) {
case R.id.ok:
//the code of class PackMessage show you later
PackMessage pm = new PackMessage();
//sendContent to get the message that have packed
sendContent = pm.login(id.getText().toString(),
pas.getText
().toString());
//let sm get packedm.toString
SendMessage sm = new
SendMessage(sendContent.toString());
//the class SendMessage have implemented Runnable
Thread smthread = new Thread(sm);
//so turn to method run in class SendMessage
smthread.start();
break;
case R.id.cancel:
finish();
break;
}
part2: this is the code of class PackMessage
public class PackMessage {
public StringBuffer login(String userid,String password)
{
//put the input from in sb
StringBuffer sb = new StringBuffer();
sb.append("<purpose>login</purpose>");
sb.append("<userid>"+userid+"</userid>" );
sb.append("<password>"+password+"</password>");
return sb;
}
}
part3: the constructor of class SendMessage
public SendMessage(String sendContent)
{
SendMessage.sendContent = sendContent;
}
part4: the code of run();
public void run() {
getHttpStream();
Intent Intent = new Intent();
// that is the point :getHttpStram();
Intent.putExtra("id", getHttpStream().toString());
Intent.setAction("com.google.lm.Main");
startActivity(Intent);
}
part5 : code of getHttpStram();and the
public static InputStream getHttpStream() {
HttpPost httppost = new
HttpPost("http://localhost:8080/J2ME/servlet/
HelloServlet");
DefaultHttpClient httpclient = new DefaultHttpClient();
StringEntity reqEntity;
try {
reqEntity = new StringEntity(sendContent.toString());
reqEntity.setContentType("application/x-www-form-urlencoded");
httppost.setEntity(reqEntity);
//always catched IOException when ------
httpclient.execute(httppost);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
if(entity != null) {
return entity.getContent();
}
}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
catch (IllegalStateException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
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