bitmap using (MemoryStream ms = new MemoryStream(image)) //容易出现异常 { bmImage = new Bitmap(Image.FromStream
原作者：INCerry提到MemoryStream大家可能都不陌生，在编写代码中或多或少有使用过；比如Json序列化反序列化、导出PDF/Excel/Word、进行图片或者文字处理等场景。...今天给大家带来的这个优化技巧其实就是池化MemoryStream的版本RecyclableMemoryStream，它通过池化MemoryStream底层buffer来降低内存占用率、GC暂停时间和GC...性能比较为了直观的比较性能，我构建了一个Benchmark，这个基准测试分别使用MemoryStream和RecyclableMemoryStream实现数据缓冲的功能，下面是测试代码：public class...总结本文中介绍了一个通用的MemoryStream池化库，使用它能显著的提升你系统的性能，你几乎可以在任何场景使用RecyclableMemoryStream替代MemoryStream。...要知道在我们性能评测中，RecyclableMemoryStream比MemoryStream快51%，而且它能节省99.4%的内存分配。
MemoryStream和BufferedStream都派生自基类Stream，因此它们有很多共同的属性和方法，但是每一个类都有自己独特的用法。...读写内存-MemoryStream类 MemoryStream类用于向内存而不是磁盘读写数据。...MemoryStream封装以无符号字节数组形式存储的数据，该数组在创建MemoryStream对象时被初始化，或者该数组可创建为空数组。可在内存中直接访问这些封装的数据。...下表列出了MemoryStream类的重要方法： 1、Read()：读取MemoryStream流对象，将值写入缓存区。 2、ReadByte()：从MemoryStream流中读取一个字节。...3、Write()：将值从缓存区写入MemoryStream流对象。 4、WriteByte()：从缓存区写入MemoytStream流对象一个字节。
提到MemoryStream大家可能都不陌生，在编写代码中或多或少有使用过；比如Json序列化反序列化、导出PDF/Excel/Word、进行图片或者文字处理等场景。...今天给大家带来的这个优化技巧其实就是池化MemoryStream的版本RecyclableMemoryStream，它通过池化MemoryStream底层buffer来降低内存占用率、GC暂停时间和GC...性能比较 为了直观的比较性能，我构建了一个Benchmark，这个基准测试分别使用MemoryStream和RecyclableMemoryStream实现数据缓冲的功能，下面是测试代码： public...总结 本文中介绍了一个通用的MemoryStream池化库，使用它能显著的提升你系统的性能，你几乎可以在任何场景使用RecyclableMemoryStream替代MemoryStream。...要知道在我们性能评测中，RecyclableMemoryStream比MemoryStream快51%，而且它能节省99.4%的内存分配。
GetBytes(str); 上面的 str 就是传入的需要压缩的字符串 使用 GZipStream 需要先传入存放压缩的 Stream 可以创建内存 Stream 等 var memoryStream...= new MemoryStream(); var gZipStream = new GZipStream(memoryStream, CompressionMode.Compress...方法 全部代码 var str = "123123123123123123123123123123123123"; var memoryStream =...new MemoryStream(); var gZipStream = new GZipStream(memoryStream, CompressionMode.Compress...(); 解压缩可以在获取到 byte[] 转换为 MemoryStream 然后通过 GZipStream 读取 var memoryStream = new MemoryStream
ms=new MemoryStream(System.Text.Encoding.Default.GetBytes("字符串")); (2)MemoryStream ms=new MemoryStream...ms=new MemoryStream(bt); (2)MemoryStream ms=new MemoryStream();ms.Read(bt,0,bt.Lenght); 6.流=>比特数组 (...1)byte[] bt=ms.ToArray(); (2)MemoryStream ms=new MemoryStream();ms.Write(bt,0,ms.Length); 7、byte[]与base64string...对象 MemoryStream memoryStream = new MemoryStream(imageBytes, 0, imageBytes.Length...); memoryStream.Write(imageBytes, 0, imageBytes.Length); //
= new MemoryStream(); fileStream.CopyTo(memoryStream); memoryStream.Seek...通过设置 memoryStream.Seek(0, SeekOrigin.Begin) 可以解决这个问题，原因是这个流在复制的时候会将指针放在流的最后，但是图片的解析需要将流指针放在最前这样才可以解析...那么此时的 memoryStream 是否可以释放？...如果调用了 memoryStream.Dispose 就会显示空白而不是图片 var bitmapImage = new BitmapImage(); using...= new MemoryStream(); fileStream.CopyTo(memoryStream); memoryStream.Seek
= new MemoryStream(); var binaryWriter = new BinaryWriter(memoryStream);...= new MemoryStream(); var binaryWriter = new BinaryWriter(memoryStream);...= new MemoryStream(); var binaryWriter = new BinaryWriter(memoryStream);...= new MemoryStream(); var binaryWriter = new BinaryWriter(memoryStream);...= new MemoryStream(); var binaryWriter = new BinaryWriter(memoryStream);
MemoryStream 目录： 1 简单介绍一下MemoryStream 2 MemoryStream和FileStream的区别 3 通过部分源码深入了解下MemoryStream 4 分析MemorySteam...最常见的OutOfMemory异常 5 MemoryStream 的构造 6 MemoryStream 的属性 7 MemoryStream 的方法 8 MemoryStream 简单示例 : XmlWriter...中使用MemoryStream 9 MemoryStream 简单示例 ：自定义一个处理图片的HttpHandler 10 本章总结 简单介绍一下MemoryStream MemoryStream是内存流...MemoryStream 的构造 MemoryStream() MemoryStream 允许不带参数的构造 MemoryStream(byte[] byte) Byte数组是包含了一定的数据的byte...MemoryStream了 MemoryStream(int capacity) 这个是重中之重，为什么这么说呢？
) { string result = string.Empty; try { MemoryStream...memoryStream = new MemoryStream(); ZipOutputStream zipOutputStream = new ZipOutputStream...(memoryStream, ZipCompression.Default); StreamWriter writer = new StreamWriter(zipOutputStream...memoryStream = new MemoryStream(Convert.FromBase64String(compressedBase64String)); ZipInputStream...input = new ZipInputStream(memoryStream); StreamReader reader = new StreamReader(input
3-5-1 读写内存流 ——MemoryStream类 类MemoryStream创建这样的流，该流以内存而不是磁盘或网络连接作为支持存储区。...类MemoryStream的构造函数有7种重载，我们这里重点介绍三种，如表3－16所示： 表3-16 类MemoryStream的常用构造函数 名称 说明 MemoryStream () 使用初始化为零的可扩展容量初始化...MemoryStream 类的新实例。...MemoryStream (byte[]) 基于指定的字节数组初始化 MemoryStream 类的无法调整大小的新实例。...n小实验1： MemoryStream mem = new MemoryStream(buffer); //这时，无法再设置Capacity属性的大小。
public string ConvertImageToBase64(Image file) { using (MemoryStream memoryStream...= new MemoryStream()) { file.Save(memoryStream, file.RawFormat);...byte[] imageBytes = memoryStream.ToArray(); return Convert.ToBase64String(imageBytes)...{ byte[] imageBytes = Convert.FromBase64String(base64String); using (MemoryStream...ms = new MemoryStream(imageBytes, 0, imageBytes.Length)) { ms.Write(imageBytes
summary> public string Desc_IP_Port { get; set; } } 发送数据时，我们通过BinaryFormatter对象将Package对象序列化进MemoryStream...BinaryFormatter formatter = new BinaryFormatter(); byte[] retbuff = new byte[1]; using (MemoryStream...mStream = new MemoryStream()) { formatter.Serialize(mStream, pack);...的反序列化将内存流中的数据转化为对象 BinaryFormatter formatter = new BinaryFormatter(); using (MemoryStream...mStream = new MemoryStream()) { mStream.Write(buffer
byte[] P_byte_data = //将字符串转换为字节序列 Encoding.Unicode.GetBytes(str); MemoryStream...P_Stream_MS = //创建内存流对象 new MemoryStream(); {...P_byte_data = //将加密后的字符串转换为字节序列 Convert.FromBase64String(str); MemoryStream...P_Stream_MS =//创建内存流对象并写入数据 new MemoryStream(P_byte_data); CryptoStream...P_MemoryStream_temp =//创建内存流对象 new MemoryStream(); int i = 0;//创建记数器
{ Image img = Image.FromFile(@"E:\MyDocs\My Pictures\样品.jpg"); System.IO.MemoryStream...stream = new System.IO.MemoryStream(); img.Save(stream, ImageFormat.Jpeg); byte...doc.DocumentElement.SelectSingleNode("data").InnerText; byte[] b = Convert.FromBase64String(s); MemoryStream...stream = new MemoryStream(b); Bitmap bitmap = new Bitmap(stream); this.pictureBox1
key; sa.Mode = CipherMode.ECB; sa.Padding = PaddingMode.Zeros; MemoryStream...ct = sa.CreateDecryptor(); byte[] byt = Convert.FromBase64String(strSource); MemoryStream...ms = new MemoryStream(byt); CryptoStream cs = new CryptoStream(ms, ct, CryptoStreamMode.Read...ms = new MemoryStream(); RijndaelManaged rv = new RijndaelManaged(); cs = new CryptoStream...ms = new MemoryStream(SrcBytes); CryptoStream cs = new CryptoStream(ms, rv.CreateDecryptor(RiKey
Rijndael.Create(); sa.Key = key; sa.Mode = CipherMode.ECB; sa.Padding = PaddingMode.Zeros; MemoryStream...ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, sa.CreateEncryptor(), CryptoStreamMode.Write...ms = new MemoryStream(byt); CryptoStream cs = new CryptoStream(ms, ct, CryptoStreamMode.Read);...ms = new MemoryStream(); RijndaelManaged rv = new RijndaelManaged(); cs = new CryptoStream(ms...ms = new MemoryStream(SrcBytes); CryptoStream cs = new CryptoStream(ms, rv.CreateDecryptor(RiKey
/// static byte[] Compress(byte[] rawData) { System.IO.MemoryStream...ms = new System.IO.MemoryStream(); System.IO.Compression.GZipStream compressedzipStream =...> public static byte[] Decompress(byte[] zippedData) { System.IO.MemoryStream...ms = new System.IO.MemoryStream(zippedData); System.IO.Compression.GZipStream compressedzipStream...outBuffer = new System.IO.MemoryStream(); byte[] block = new byte[1024]; while
; Console.Read(); 5- MemoryStream MemoryStream class is directly extended from the Stream class, it is...Constructor: MemoryStream() MemoryStream(Byte[] buffer) MemoryStream(Byte[] buffer, Boolean writable...) MemoryStream(Byte[] buffer, Int32 index, Int32 count, Boolean writable) MemoryStream(Byte[] buffer...MemoryStream memoryStream = new MemoryStream(100); byte[] javaBytes = Encoding.UTF8.GetBytes("Java...memoryStream = new MemoryStream(buffer, index, count, true, true); byte[] readBytes = new byte[
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