InputStream与String,Byte之间互转

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本文将介绍InputStream与String,Byte之间的相互转换。以代码来说明：

/** *  * @author Andy.Chen * @mail Chenjunjun.ZJ@gmail.com * */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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