Android InputStream与String,Byte其间互转

import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;/** *  * @author Andy.Chen * @mail [email protected] * */public class InputStreamUtils {		final static int BUFFER_SIZE = 4096;		/**	 * 将InputStream转换成String	 * @param in InputStream	 * @return String	 * @throws Exception	 * 	 */	public static String InputStreamTOString(InputStream in) throws Exception{				ByteArrayOutputStream outStream = new ByteArrayOutputStream();		byte[] data = new byte[BUFFER_SIZE];		int count = -1;		while((count = in.read(data,0,BUFFER_SIZE)) != -1)			outStream.write(data, 0, count);				data = null;		return new String(outStream.toByteArray(),"ISO-8859-1");	}		/**	 * 将InputStream转换成某种字符编码的String	 * @param in	 * @param encoding	 * @return	 * @throws Exception	 */         public static String InputStreamTOString(InputStream in,String encoding) throws Exception{				ByteArrayOutputStream outStream = new ByteArrayOutputStream();		byte[] data = new byte[BUFFER_SIZE];		int count = -1;		while((count = in.read(data,0,BUFFER_SIZE)) != -1)			outStream.write(data, 0, count);				data = null;		return new String(outStream.toByteArray(),"ISO-8859-1");	}        /**     * 将String转换成InputStream     * @param in     * @return     * @throws Exception     */    public static InputStream StringTOInputStream(String in) throws Exception{    	    	ByteArrayInputStream is = new ByteArrayInputStream(in.getBytes("ISO-8859-1"));    	return is;    }        /**     * 将InputStream转换成byte数组     * @param in InputStream     * @return byte[]     * @throws IOException     */    public static byte[] InputStreamTOByte(InputStream in) throws IOException{    	    	ByteArrayOutputStream outStream = new ByteArrayOutputStream();		byte[] data = new byte[BUFFER_SIZE];		int count = -1;		while((count = in.read(data,0,BUFFER_SIZE)) != -1)			outStream.write(data, 0, count);				data = null;		return outStream.toByteArray();    }        /**     * 将byte数组转换成InputStream     * @param in     * @return     * @throws Exception     */    public static InputStream byteTOInputStream(byte[] in) throws Exception{    	    	ByteArrayInputStream is = new ByteArrayInputStream(in);    	return is;    }        /**     * 将byte数组转换成String     * @param in     * @return     * @throws Exception     */    public static String byteTOString(byte[] in) throws Exception{    	    	InputStream is = byteTOInputStream(in);    	return InputStreamTOString(is);    }}

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