Android Simple Get Server data

1, Activity_main.xml

<LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Xmlns:tools= "Http://schemas.android.com/tools"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"android:orientation= "vertical"Tools:context= "Com.example.getserverdata.MainActivity" >    <EditTextAndroid:id= "@+id/et_username"Android:hint= "Please enter user name"Android:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"         >    </EditText>    <EditTextAndroid:id= "@+id/et_password"Android:hint= "Please enter password"Android:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"Android:ems= "Ten"Android:inputtype= "Textpassword" />    <ButtonAndroid:onclick= "click"Android:id= "@+id/button1"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Login" /></LinearLayout>

2.androidmanifest.xml Configuring Permissions

<?XML version= "1.0" encoding= "Utf-8"?><Manifestxmlns:android= "Http://schemas.android.com/apk/res/android" Package= "Com.example.getserverdata"Android:versioncode= "1"Android:versionname= "1.0" >    <USES-SDKandroid:minsdkversion= "8"android:targetsdkversion= "+" />    <uses-permissionAndroid:name= "Android.permission.INTERNET"/>    <ApplicationAndroid:allowbackup= "true"Android:icon= "@drawable/ic_launcher"Android:label= "@string/app_name"Android:theme= "@style/apptheme" >        <ActivityAndroid:name=". Mainactivity "Android:label= "@string/app_name" >            <Intent-filter>                <ActionAndroid:name= "Android.intent.action.MAIN" />                <categoryAndroid:name= "Android.intent.category.LAUNCHER" />            </Intent-filter>        </Activity>    </Application></Manifest>

3.get Request

 PackageCom.example.getserverdata.service;ImportJava.io.InputStream;Importjava.net.HttpURLConnection;ImportJava.net.URL;ImportCom.example.getserverdata.utils.StreamUtil; Public classLoginservice { Public Staticstring loginbyget (string username,string password) {string path= "Http://192.168.1.100:8088/Login.ashx?username=" +username+ "&password=" +password; Try {            //Create URLURL url =NewURL (path); //Create an HTTP connectionHttpURLConnection conn =(HttpURLConnection) url.openconnection (); //Setting the connection timeConn.setconnecttimeout (5000); //Set Request ModeConn.setrequestmethod ("GET"); //GET Request Code            intCode =Conn.getresponsecode (); System.out.println ("Code:" +code); if(code==200)            {                //Request succeeded//Get Response DataInputStream is =Conn.getinputstream (); //Get Response DataString result =Streamutil.readinputstream (IS); returnresult; }            Else            {                //request failed                return NULL; }                                } Catch(Exception e) {e.printstacktrace (); }                return NULL; }}

4. Convert InputStream to String

 Packagecom.example.getserverdata.utils;ImportJava.io.ByteArrayOutputStream;Importjava.io.IOException;ImportJava.io.InputStream; Public classStreamutil { Public StaticString Readinputstream (InputStream is) {Bytearrayoutputstream BAOs=NewBytearrayoutputstream (); byte[] data =New byte[1024]; intLen = 0; Try {             while(len = is.read (data))!=-1) baos.write (data,0, Len);            Is.close ();            Baos.close (); return NewString (Baos.tobytearray ()); } Catch(Exception e) {e.printstacktrace (); }                    return NULL; }}

5.MainActivity

 PackageCom.example.getserverdata;ImportCom.example.getserverdata.service.LoginService;ImportAndroid.os.Bundle;Importandroid.support.v7.app.ActionBarActivity;ImportAndroid.view.Menu;ImportAndroid.view.MenuItem;ImportAndroid.view.View;ImportAndroid.widget.EditText;ImportAndroid.widget.Toast; Public classMainactivityextendsactionbaractivity {PrivateEditText Et_username; PrivateEditText Et_password; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);                Setcontentview (R.layout.activity_main); Et_username=(EditText) Findviewbyid (r.id.et_username); Et_password=(EditText) Findviewbyid (R.id.et_password); }             Public voidClick (View view) {FinalString username =Et_username.gettext (). toString (). Trim (); FinalString Password =Et_password.gettext (). toString (). Trim (); NewThread () { Public voidrun () {FinalString result =loginservice.loginbyget (username, password); System.out.println ("REUSLT:" +result); if(result!=NULL) {Runonuithread (NewRunnable () {@Override Public voidrun () {Toast.maketext (mainactivity. This, result, 0). Show ();                                    }                                                                    }); }                                Else{Runonuithread (NewRunnable () {@Override Public voidrun () {Toast.maketext (mainactivity. This, "Failed to get data", 0). Show ();                                    }                    });                    }}}.start (); }    }

Android Simple Get Server data