Use get to submit data to server side under Android

To submit data from the client to the server side:

Use the get method to submit data to the server side, and put the parameter group behind the URL Address:

Http://192.168.0.10:8080/web/servlet/LoginServlet

? username=123&password=123445

Source Plate :

Package com.itheima.qqlogin;

Import Java.io.InputStream;

Import java.net.HttpURLConnection;

Import Java.net.URL;

Import android.app.Activity;

Import Android.os.Bundle;

Import Android.os.Handler;

Import Android.os.Message;

Import Android.text.TextUtils;

Import Android.view.View;

Import Android.widget.EditText;

Import Android.widget.Toast;

Import Com.itheima.htmlview.utils.StreamTools;

public class Mainactivity extends Activity {

private static final int ERROR = 0;

private static final int FAILED = 1;

private static final int SUCCESS = 2;

Private EditText et_qq;

Private EditText et_pwd;

// 1. Create a handler member variable in the main thread :

Private Handler Handler = new Handler () {

public void Handlemessage (Message msg) {

int what = Msg.what;

Switch (what) {

Case 0:

Toast.maketext (Mainactivity.this, " failed to access the network ", 0). Show ();

Break

Case 1:

Toast.maketext (mainactivity.this, " service returned data failed ", 0). Show ();

Break

Case 2:

String result = (string) msg.obj;

Toast.maketext (mainactivity.this, result, 0). Show ();

Break

}

};

};

@Override

protected void OnCreate (Bundle savedinstancestate) {

Super.oncreate (savedinstancestate);

Setcontentview (R.layout.activity_main);

ET_QQ = (EditText) Findviewbyid (R.ID.ET_QQ);

Et_pwd = (EditText) Findviewbyid (R.ID.ET_PWD);

}

public void Login (View v) {

Final String QQ = Et_qq.gettext (). toString (). Trim ();

Final String pwd = Et_pwd.gettext (). toString (). Trim ();

if (Textutils.isempty (QQ) | | Textutils.isempty (pwd)) {

Toast.maketext (This, "QQ number or password cannot be empty ", 0). Show ();

Return

} else {

New Thread () {

public void Run () {

try {

1, create the URL object, open the HTTP type of connection;

String Path = "Http://192.168.0.10:8080/web/servlet/LoginServlet?username=" +qq+ "&password=" +PWD;

URL url = new URL (path);

HttpURLConnection conn = (httpurlconnection) URL

. OpenConnection ();

2, set the request header information:GET;

Conn.setrequestmethod ("GET");

to set the time-out for a connection

Conn.setconnecttimeout (3000);

Conn.setrequestproperty ("Accept-language", "ZH-CN");

3.get the response data returned by the server side, the input stream of the binary;

int code = Conn.getresponsecode ();

if (code = = 200) {

InputStream is = Conn.getinputstream ();

String result = Streamtools.readstream (IS);

Message msg = Message.obtain ();

message code to distinguish where a message is sent

Msg.what = SUCCESS;

Msg.obj = result;

Handler.sendmessage (msg);

}else{

Service returned data failed

Message msg = Message.obtain ();

// msg.obj = " service returned data failed ";

Msg.what = FAILED;

Handler.sendmessage (msg);

}

} catch (Exception e) {

E.printstacktrace ();

failed to access the network

Message msg = Message.obtain ();

// msg.obj = " failed to access the network ";

Msg.what = ERROR;

Handler.sendmessage (msg);

}

};

}.start ();

}

}

}

This article is from the "want to sell cut cake" blog, please be sure to keep this source http://dkpzjl.blog.51cto.com/9545260/1569869

Use get to submit data to server side under Android