Java 网络获取到的图片转成hex字符串 踏坑日记_huihui_android的博客

首先,字节数组是可以转成hex字符串的 推荐的方法

public static String bytesToHexString(byte[] src) {
    if (src == null || src.length <= 0) {
        return null;
    }
    StringBuilder stringBuilder = new StringBuilder("");
    for (int i = 0; i < src.length; i++) {
        int v = src[i] & 0xFF;
        String hv = Integer.toHexString(v);
        if (hv.length() < 2) {
            stringBuilder.append(0);
        }
        stringBuilder.append(hv);
    }
    return stringBuilder.toString();
}public static Strin