Use Java/JSF/jspreal-time read and extract the http://zhidao.baidu.com/question/42189115.html of the. txt file

 Code 

   Import java. Io.  *  ;
Import java. NiO.  *  ;
Import java. NiO. channels.  *  ;

  Public     Class  New {
 Public     Static     Void  Main (string ARGs []) {
Fileinputstream fin;
Filechannel fchan;
  Long  Fsize;
Bytebuffer mbuf;
  Int  I;

  Try  {
Fin  =  New  Fileinputstream (  " Yourtext.txt  "  );  //  Absolute path of your TXT file  
  Fchan  =  Fin. getchannel ();
Fsize  =  Fchan. Size ();
Mbuf  =  Bytebuffer. Allocate ((  Int  ) Fsize );
Fchan. Read (mbuf );
Mbuf. Rewind ();
  For (I  =  0  ; I  <  Fsize; I  ++  ){
System.  Out  . Print ((  Char  ) Mbuf.  Get  ());
}
Mbuf. Clear ();
Fchan. Close ();
Fin. Close ();
}
  Catch  (Ioexception e ){
System. Out  . Println (  "  No file  "  );
}
}
} 

 

 

 Code 

  Import java. Io. bufferedreader;
Import java. Io. fileinputstream;
Import java. Io. fileoutputstream;
Import java. Io. ioexception;
Import java. Io. inputstream;
Import java. Io. inputstreamreader;
Import java. Io. outputstream;
Import java. Io. outputstreamwriter;
Import java. Io. printstream;
Import java. Io. printwriter;

  Public  Final  Class  Accesstextfile {

  /*  *
* 1. Read the text in the stream into a stringbuffer.
* @ Throws ioexception
  */   
  Public    Void  Readtobuffer (stringbuffer buffer, inputstream  Is  )
Throws ioexception {
String line;  //  Used to save the content read by each row  
  Bufferedreader  =     New  Bufferedreader (  New  Inputstreamreader ( Is  ));
Line  =  Reader. Readline ();  //  Read the first line  
  While  (Line  ! =     Null  ){  //  If line is empty, the read is complete.  
  Buffer. append (line ); //  Add read content to buffer  
  Buffer. append (  "  \ N  "  );  //  Add linefeed  
  Line  =  Reader. Readline ();  //  Read the next row  
 }
}

  /*  *
* 2. Demonstrate reading the content in stringbuffer into the stream
  */   
  Public     Void  Writefrombuffer (stringbuffer buffer, outputstream OS ){
  //  Printstream can be used to conveniently output content to the output stream.
  //  The object usage is the same as that of system. Out.
  // (System. Out itself is a printstream object)  
  Printstream PS  =     New  Printstream (OS );
PS. Print (buffer. tostring ());
}

  /*  *
* 3 *. Copy the content from the input stream to the input stream.
* @ Throws ioexception
  */   
  Public     Void  Copystream (inputstream Is  , Outputstream OS) throws ioexception {
  //  For the read process, see the comments in readtobuffer.  
  String line;
Bufferedreader  =     New  Bufferedreader (  New  Inputstreamreader (  Is  ));
Printwriter writer  =    New  Printwriter (  New  Outputstreamwriter (OS ));
Line  =  Reader. Readline ();
  While  (Line  ! =     Null  ){
Writer. println (line );
Line  =  Reader. Readline ();
}
Writer. Flush (); //  Are you sure you want to write all the items in the output stream?
  //  Writer is not closed because the OS is passed in from outside.
  //  Since it is not opened from here, it will not be closed from here
  //  If the writer is closed, the OS encapsulated in it will be shut down.  
  }

  /*  *
* 3. Call the copystream (inputstream, outputstream) method to copy text files.
  */   
  Public    Void  Copytextfile (string infilename, string outfilename)
Throws ioexception {
  //  Generate the corresponding input/output stream based on the input/output file  
  Inputstream  Is     =     New  Fileinputstream (infilename );
Outputstream OS  =    New  Fileoutputstream (outfilename );
Copystream (  Is  , OS );  //  Copy content using copystream  
  Is  . Close ();  //  Is Enabled here, so you need to disable  
  OS. Close ();  //  OS is enabled here, so you need to disable  
 }

  Public     Static     Void  Main (string [] ARGs) throws ioexception {
  Int  SW  =     1  ;  //  Three test options  
  Accesstextfile Test =     New  Accesstextfile ();

  Switch  (SW ){
  Case     1  :  //  Test read  
  {
Inputstream  Is     =    New  Fileinputstream (  "  E: \ test.txt  "  );
Stringbuffer Buffer  =     New  Stringbuffer ();
Test. readtobuffer (buffer,  Is  );
System.  Out  . Println (buffer );  // Write the content in the buffer.  
  Is  . Close ();
  Break  ;
}
  Case     2  :  //  Test write  
  {
Stringbuffer Buffer  =     New Stringbuffer (  "  Only a test \ n  "  );
Test. writefrombuffer (buffer, system.  Out  );
  Break  ;
}
  Case     3  :  //  Test copy  
 {
Test. copytextfile (  "  E: \ test.txt  "  ,  "  E: \ r.txt  "  );
}
  Break  ;
}
}

}