Android uses three methods to obtain webpages (submit forms through post and get)

Here, we have integrated the three types of information used to obtain the webpage content. We have already processed the preceding three methods for submitting and uploading files through a form. Now we have integrated these three methods into one, to help you make a comparison, the following are three methods:Code:

A total of three functions can be called directly, but remember to add access permissions when accessing the network.

 

Code

    //  Get information directly  
    Void  Directinfo ()  Throws Ioexception {

URL  =     New  URL (SRC );

Httpurlconnection httpconn  =  (Httpurlconnection) URL. openconnection ();

Inputstreamreader instreamreader  =     New  Inputstreamreader (httpconn
. Getinputstream ());

Bufferedreader bufreader  =    New  Bufferedreader (instreamreader );

String line  =     ""  ;
String date  =     "  OK  "  ;
  While  (Line  =  Bufreader. Readline ()) ! =     Null  ){
Date  + =  Line  +     "  \ N  "  ;
}

Edit1.settext (date );

}

  //  Get information  
   Void  Getinfo ()  Throws  Ioexception {
  //  Modify the preceding method directly.  
  
URL  =     New  URL (SRC  +  "  /Default. aspx? Name =  "  
 +  Urlencoder. encode (  "  ABC  "  ,  "  UTF-8  "  ));
Httpurlconnection httpconn  =  (Httpurlconnection) URL. openconnection ();

Inputstreamreader inputreader  =     New Inputstreamreader (httpconn
. Getinputstream ());

Bufferedreader bufreader  =     New  Bufferedreader (inputreader );

String line  =     ""  ;
String date  =     ""  ;

  While  (Line =  Bufreader. Readline ())  ! =     Null  ){
Date  + =  Line;
}

Edit1.settext (date );

}

  //  POST method to obtain information  
    Void  Postinfo ()  Throws Malformedurlexception, ioexception {
  //  The post method requires more parameters than the get method.  
  
Httpurlconnection httpconn  =  (Httpurlconnection)  New  URL (SRC)
. Openconnection ();
  //  Post mode. The input and output parameters must be set to true.  
  Httpconn. setdoinput (  True );
Httpconn. setdooutput (  True  );
Httpconn. setrequestmethod (  "  Post  "  );  //  Set to post mode. The default value is get.  
  Httpconn. setusecaches (  False  );  //  No Cache  
 Httpconn. setinstancefollowredirects (  True  );  //  Redirection  
  Httpconn. setrequestproperty (  "  Content-Type  "  ,
  "  Application/X-WWW-form-urlencoded  "  );  // Set the connection Content-Type:
  //  Application/X-WWW-form-urlencoded  
  Httpconn. Connect ();  //  Connection  
  
Dataoutputstream out  =     New  Dataoutputstream (httpconn. getoutputstream ());  //  Declare data write stream 
  
String content  =     "  Name =  "  +  Urlencoder. encode (  "  Fly_binbin  "  ,  "  Gb2312  " );

Out. writebytes (content );

Out. Flush ();
Out. Close ();

Bufferedreader  =     New  Bufferedreader (  New  Inputstreamreader (httpconn. getinputstream ()));

String line  =     ""  ;
String resultdate  =     "" ;
  While  (Line  =  Reader. Readline ())  ! =  Null  )
{
Resultdate  + =  Line;
}
Edit1.settext (resultdate );

} 

 

You can create a test server by yourself. I wrote this test server myself and used it for testing. It was written in Asp.net and the results were the same in other methods. The results of using Web services are the same!