Javascript gzip解压缩

Question

我想在JavaScript中做解压缩图像。我已经用C#使用gzip压缩了图像。如何在JavaScript中解压缩gzipped数据？

C#代码

public static byte[] Compress(byte[] raw)
{
    using (MemoryStream memory = new MemoryStream())
    {
        using (GZipStream gzip = new GZipStream(memory, CompressionMode.Compress, true))
        {
            gzip.Write(raw, 0, raw.Length);
        }
        return memory.ToArray();
    }
}

Answer 1

首先，完成后必须关闭gzipstream。

public static byte[] Compress(byte[] raw)
{
    using (MemoryStream memory = new MemoryStream())
    {
        using (GZipStream gzip = new GZipStream(memory, CompressionMode.Compress, true))
        {
            gzip.Write(raw, 0, raw.Length);
            gzip.Close();
        }
        return memory.ToArray();
    }
}

您可以使用pako在JavaScript中解压缩。

var base64Data = "COMPRESSED_BASE64_GZIP";
var compressData = atob(base64Data);
compressData = compressData.split('').map(function (e) {
    return e.charCodeAt(0);
});

var originalText = pako.ungzip(compressData, {to:"string"});