java-code-example/!temp/src/TempNioReadFile.java at master · cherkavi/java-code-example · GitHub

executable file

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import java.io.FileInputStream;

import java.nio.ByteBuffer;

import java.nio.CharBuffer;

import java.nio.channels.FileChannel;

import java.nio.charset.Charset;

import java.nio.charset.CharsetDecoder;

import java.nio.charset.CharsetEncoder;

public class TempNioReadFile {

public static void main(String[] args){

readFromFile("c:\\temp.xml");

}

private static boolean readFromFile(String pathToFile){

boolean returnValue=false;

try{

FileInputStream fis=new FileInputStream(pathToFile);

FileChannel channel=fis.getChannel();

ByteBuffer buffer=ByteBuffer.allocate(50);

CharsetEncoder encoder=Charset.defaultCharset().newEncoder();

CharsetDecoder decoder=Charset.defaultCharset().newDecoder();

while(channel.read(buffer)>0){

buffer.flip();

CharBuffer charBuffer=decoder.decode(buffer);

System.out.println(charBuffer.toString());

buffer.clear();

}

returnValue=true;

}catch(Exception ex){

System.out.println("readFromFile: "+ex.getMessage());

returnValue=false;

}

return returnValue;

}

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