Summary of using httpclient in Android

Android can also open remote web pages and use httpclient

Get the page content. The following code is available in both methods:

Import java. Io. bufferedinputstream;

Import java. Io. bufferedreader;

Import java. Io. inputstream;

Import java. Io. inputstreamreader;

Import java.net. url;

Import java.net. urlconnection;

Import org. Apache. http. httpentity;

Import org. Apache. http. httpresponse;

Import org. Apache. http. Client. Methods. httpget;

Import org. Apache. http. Client. Methods. httpurirequest;

Import org. Apache. http. impl. Client. defaulthttpclient;

Import org. Apache. http. util. bytearraybuffer;

Import Android. App. activity;

Import Android. OS. Bundle;

Import Android. widget. textview;

Public class androidtelenet extends activity {

/** Called when the activity is first created .*/

Httpurirequest request = NULL;

Httpresponse resp = NULL;

Inputstream is = NULL;

Defaulthttpclient client = new defaulthttpclient ();

@ Override

Public void oncreate (bundle savedinstancestate ){

Super. oncreate (savedinstancestate );

/* We will show the data we read in a textview .*/

Textview TV = new textview (this );

/* Will be filled and displayed later .*/

Stringbuffer mystring = new stringbuffer ();

String tips = NULL;

Try {

/* Define the URL we want to load data from .*/

// URL myurl = new URL (

// "Http: // 10.0.2.2: 8085/test/index. Action ");

/* Open a connection to that URL .*/

// Urlconnection ucon = myurl. openconnection ();

/*

* Define inputstreams to read from the urlconnection.

*/

// Inputstream is = ucon. getinputstream ();

// Bufferedinputstream Bis = new bufferedinputstream (is );

// If (bis. Read ()> 0)

//{

// Tips = "connecting to webpages ";

//}

// Else

//{

// Tips = "cannot connect to webpage ";

//}

/*

* Read bytes to the buffer until there is nothing more to read (-1 ).

*/

// Bytearraybuffer BAF = new bytearraybuffer (50 );

// Int current = 0;

// While (current = bis. Read ())! =-1 ){

// BAF. append (byte) Current );

//}

/* Convert the bytes read to a string .*/

// Mystring = new string (BAF. tobytearray ());

Request = new httpget ("http: // 10.0.2.2: 8085/test/index. Action ");

Resp=client.exe cute (request );

Httpentity entity = resp. getentity ();

Inputstream is = entity. getcontent ();

Bufferedreader BR = new bufferedreader (

New inputstreamreader (is, "gb2312 "));

String data = "";

While (Data = Br. Readline ())! = NULL ){

Mystring. append (data );

}

String result = mystring. tostring ();

System. Out. println ("result is" + result );

System. Out. println ("mystring" + mystring );

If (mystring. indexof ("sorry, Operation error or system maintenance")> 0)

{

Tips = "Tomcat startup, database, and other exceptions ";

}

Else

{

Tips = "normal, no exception information ";

}

} Catch (exception e ){

/* On any error we want to display it .*/

Tips = E. getmessage ();

}

/* Show the string on the GUI .*/

TV. settext (TIPS );

This. setcontentview (TV );

}

}