鑒客 InputStream與String,Byte之間互轉

import

java.io.ByteArrayInputStream;

002	import java.io.ByteArrayOutputStream;

003	import java.io.IOException;

004	import java.io.InputStream;

005

006

012	public class InputStreamUtils {

013

014	final static int BUFFER_SIZE = 4096 ;

015

016

023	public static String InputStreamTOString(InputStream in) throws Exception{

024

025	ByteArrayOutputStream outStream = new ByteArrayOutputStream();

026	byte [] data = new byte [BUFFER_SIZE];

027	int count = - 1 ;

028	while ((count = in.read(data, ,BUFFER_SIZE)) != - 1 )

029	outStream.write(data, , count);

030

031	data = null ;

032	return new String(outStream.toByteArray(), "ISO-8859-1" );

033

}

034

035

042	public static String InputStreamTOString(InputStream in,String encoding) throws Exception{

043

044	ByteArrayOutputStream outStream = new ByteArrayOutputStream();

045	byte [] data = new byte [BUFFER_SIZE];

046	int count = - 1 ;

047	while ((count = in.read(data, ,BUFFER_SIZE)) != - 1 )

048	outStream.write(data, , count);

049

050	data = null ;

051	return new String(outStream.toByteArray(), "ISO-8859-1" );

052

}

053

054

060	public static InputStream StringTOInputStream(String in) throws Exception{

061

062	ByteArrayInputStream is = new ByteArrayInputStream(in.getBytes( "ISO-8859-1" ));

063	return is;

064

}

065

066

072	public static byte [] InputStreamTOByte(InputStream in) throws IOException{

073

074	ByteArrayOutputStream outStream = new ByteArrayOutputStream();

075	byte [] data = new byte [BUFFER_SIZE];

076	int count = - 1 ;

077	while ((count = in.read(data, ,BUFFER_SIZE)) != - 1 )

078	outStream.write(data, , count);

079

080	data = null ;

081	return outStream.toByteArray();

082

}

083

084

090	public static InputStream byteTOInputStream( byte [] in) throws Exception{

091

092	ByteArrayInputStream is = new ByteArrayInputStream(in);

093	return is;

094

}

095

096

102	public static String byteTOString( byte [] in) throws Exception{

103

104	InputStream is = byteTOInputStream(in);

105	return InputStreamTOString(is);

106

}

107

108

}