GZipStream压缩问题（丢失的字节）
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我在使用GZip序列化程序时遇到了一些奇怪的问题。
尝试序列化其中包含数据的对象。
下面的代码给出结果（在调试中的POINT1处）：ms.Length = 100028和uncompressedStream.Length = 100027
在POINT1之后，有一个异常\“解析完成之前遇到的流结束。\”，我认为这是此丢失字节的结果。
我正在使用.net 4.0。
//generating data
int length = 100000;
byte[] data = new byte[length];
for (int i = 0; i < length; i++)
{
data[i] = System.Convert.ToByte(i % 100 + i % 50);
}
//serialization into memory stream
IFormatter formatter = new BinaryFormatter();
var ms = new MemoryStream();
formatter.Serialize(ms, data);
ms.Seek(0, SeekOrigin.Begin);
//GZip zip
MemoryStream compressedStream = new MemoryStream();
var Compress = new GZipStream(compressedStream, CompressionMode.Compress);
ms.CopyTo(Compress);
compressedStream.Seek(0, SeekOrigin.Begin);
//GZip Unzip
MemoryStream uncompressedStream = new MemoryStream();
var Decompress = new GZipStream(compressedStream, CompressionMode.Decompress);
Decompress.CopyTo(uncompressedStream);
uncompressedStream.Seek(0, SeekOrigin.Begin);
//deserialization from memory stream
//POINT1
var oo = formatter.Deserialize(uncompressedStream);
var o = (byte[])oo;
//checking
Assert.AreEqual(data.Length, o.Length);
for (int i = 0; i < data.Length; i++)
Assert.AreEqual(data[i], o[i]);
没有找到相关结果
已邀请:
1 个回复
妒垮
。告诉它不要关闭基础流（构造函数参数之一）将使此操作更容易。//generating data int length = 100000; byte[] data = new byte[length]; for (int i = 0; i < length; i++) { data[i] = System.Convert.ToByte(i % 100 + i % 50); } byte[] o; //serialization into memory stream IFormatter formatter = new BinaryFormatter(); using (var ms = new MemoryStream()) { formatter.Serialize(ms, data); ms.Seek(0, SeekOrigin.Begin); //GZip zip using(MemoryStream compressedStream = new MemoryStream()) { using (var Compress = new GZipStream(compressedStream, CompressionMode.Compress, true)) { ms.CopyTo(Compress); } compressedStream.Seek(0, SeekOrigin.Begin); //GZip Unzip using (MemoryStream uncompressedStream = new MemoryStream()) { using (var Decompress = new GZipStream(compressedStream, CompressionMode.Decompress, true)) { Decompress.CopyTo(uncompressedStream); } uncompressedStream.Seek(0, SeekOrigin.Begin); var oo = formatter.Deserialize(uncompressedStream); o = (byte[])oo; } } //deserialization from memory stream //POINT1 } //checking Debug.Assert(data.Length == o.Length); for (int i = 0; i < data.Length; i++) Debug.Assert(data[i] == o[i]);