将多个流或byte数组压缩成zip流文件

将多个流或byte数组压缩成zip流⽂件

需要将多个流⽂件例如将pdf转为相应的图⽚之后，把这些图⽚打包成压缩⽂件流下载，Nuget上搜索使⽤SharpZipLib包来进⾏⽂件的压缩.

/// <summary>

/// 将多个流进⾏zip压缩，返回压缩后的流

/// </summary>

/// <param name="streams">key：⽂件名；value：⽂件名对应的要压缩的流</param>

/// <returns>压缩后的流</returns>

public static Stream PackageManyZip(Dictionary<string,byte[]> streams)

{

byte[] buffer =new byte[6500];

MemoryStream returnStream =new MemoryStream();

var zipMs =new MemoryStream();

using(ZipOutputStream zipStream =new ZipOutputStream(zipMs))

{

zipStream.SetLevel(9);

foreach(var kv in streams)

{

string fileName = kv.Key;

var byteInput = kv.Value;

using(var streamInput =new MemoryStream(byteInput))

{

zipStream.PutNextEntry(new ZipEntry(fileName));

while(true)

{

var readCount = streamInput.Read(buffer,0, buffer.Length);

if(readCount >0)

{

zipStream.Write(buffer,0, readCount);

}

else

{

break;

}

zipStream.Flush();

}

zipStream.Finish();

zipMs.Position =0;

zipMs.CopyTo(returnStream);

}

returnStream.Position =0;

return returnStream;

}

// <summary>

/// 将多个流进⾏zip压缩，返回压缩后的流

/// </summary>

/// <param name="streams">key：⽂件名；value：⽂件名对应的要压缩的流</param>

/// <returns>压缩后的流</returns>

public static Stream PackageManyZip(Dictionary<string, Stream> streams)

{

dj网站byte[] buffer =new byte[6500];

MemoryStream returnStream =new MemoryStream();

var zipMs =new MemoryStream();

using(ZipOutputStream zipStream =new ZipOutputStream(zipMs))

王麟伤不起

{

zipStream.SetLevel(9);

foreach(var kv in streams)

{

讲不出再见歌词string fileName = kv.Key;

using(var streamInput = kv.Value)

致爱{

streamInput.Seek(0, SeekOrigin.Begin);