大小端模式的int和byte相互转换

/**

 * 以大端模式将int转成byte[]

 */

public static byte[] intToBytesBig(int value) {

    byte[] src = new byte[4];

    src[0] = (byte) ((value >> 24) & 0xFF);

    src[1] = (byte) ((value >> 16) & 0xFF);

    src[2] = (byte) ((value >> 8) & 0xFF);

    src[3] = (byte) (value & 0xFF);

    return src;

}

/**

 * 以小端模式将int转成byte[]

 *

 * @param value

 * @return

 */

public static byte[] intToBytesLittle(int value) {

    byte[] src = new byte[4];

    src[3] = (byte) ((value >> 24) & 0xFF);

    src[2] = (byte) ((value >> 16) & 0xFF);

    src[1] = (byte) ((value >> 8) & 0xFF);

    src[0] = (byte) (value & 0xFF);

    return src;

}

/**

 * 以大端模式将byte[]转成int

 */

public static int bytesToIntBig(byte[] src, int offset) {

    int value;

    value = (int) (((src[offset] & 0xFF) << 24)

            | ((src[offset + 1] & 0xFF) << 16)

            | ((src[offset + 2] & 0xFF) << 8)

            | (src[offset + 3] & 0xFF));

    return value;

}

/**

 * 以小端模式将byte[]转成int

 */

public static int bytesToIntLittle(byte[] src, int offset) {

    int value;

    value = (int) ((src[offset] & 0xFF)

            | ((src[offset + 1] & 0xFF) << 8)

            | ((src[offset + 2] & 0xFF) << 16)

            | ((src[offset + 3] & 0xFF) << 24));

    return value;

}



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原文链接：https://blog.csdn.net/a22422931/article/details/64929815