关于java:二进制和byte数组的互相转换zip的加密

/**

 * byte数组转换为二进制字符串,每个字节以","隔开 **/public static String conver2HexStr(byte[] b) {    StringBuffer result = new StringBuffer();    for (int i = 0; i < b.length; i++) {        result.append(Long.toString(b[i] & 0xff, 2) + ",");    }    return result.toString().substring(0, result.length() - 1);}/** * 二进制字符串转换为byte数组,每个字节以","隔开 **/public static byte[] conver2HexToByte(String hex2Str) {    String[] temp = hex2Str.split(",");    byte[] b = new byte[temp.length];    for (int i = 0; i < b.length; i++) {        b[i] = Long.valueOf(temp[i], 2).byteValue();    }    return b;}/** * byte数组转换为十六进制的字符串 **/public static String conver16HexStr(byte[] b) {    StringBuffer result = new StringBuffer();    for (int i = 0; i < b.length; i++) {        if ((b[i] & 0xff) < 0x10)            result.append("0");        result.append(Long.toString(b[i] & 0xff, 16));    }    return result.toString().toUpperCase();}/** * 十六进制的字符串转换为byte数组 **/public static byte[] conver16HexToByte(String hex16Str) {    char[] c = hex16Str.toCharArray();    byte[] b = new byte[c.length / 2];    for (int i = 0; i < b.length; i++) {        int pos = i * 2;        b[i] = (byte) ("0123456789ABCDEF".indexOf(c[pos]) << 4 | "0123456789ABCDEF".indexOf(c[pos + 1]));    }    return b;}

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