将StringBuilder写入stream

写一个StringBuilder到System.IO.Stream的最佳方法是什么？

我现在在做：

StringBuilder message = new StringBuilder("All your base"); message.Append(" are belong to us"); System.IO.MemoryStream stream = new System.IO.MemoryStream(); System.Text.ASCIIEncoding encoding = new ASCIIEncoding(); stream.Write(encoder.GetBytes(message.ToString()), 0, message.Length); 

Answer 1

不要使用StringBuilder，如果你正在写一个stream，就用StreamWriter来做：

 using (var memoryStream = new MemoryStream()) using (var writer = new StreamWriter(memoryStream )) { // Various for loops etc as necessary that will ultimately do this: writer.Write(...); } 

Answer 2

这是最好的方法。 其他明智的损失StringBuilder和使用如下所示：

 using (MemoryStream ms = new MemoryStream()) { using (StreamWriter sw = new StreamWriter(ms, Encoding.Unicode)) { sw.WriteLine("dirty world."); } //do somthing with ms } 

Answer 3

也许这将是有用的。

 var sb= new StringBuilder("All your money"); sb.Append(" are belong to us, dude."); var myString = sb.ToString(); var myByteArray = System.Text.Encoding.UTF8.GetBytes(myString); var ms = new MemoryStream(myByteArray); // Do what you need with MemoryStream 

Answer 4

根据您的使用情况，从StringWriter开始也许是有意义的：

 StringBuilder sb = null; // StringWriter - a TextWriter backed by a StringBuilder using (var writer = new StringWriter()) { writer.WriteLine("Blah"); . . . sb = writer.GetStringBuilder(); // Get the backing StringBuilder out } // Do whatever you want with the StringBuilder 

Answer 5

如果你想使用像StringBuilder这样的东西，因为它更清洁，可以使用像下面的StringBuilder替代我创build的东西。

它所做的最重要的不同之处在于，它允许访问内部数据，而无需首先将其组装到string或ByteArray中。 这意味着您不必将内存需求加倍，并且可能会尝试分配适合整个对象的连续内存块。

注：我相信有更好的select，然后使用List<string>()内部，但这是很简单的，certificate是足够我的目的。

 public class StringBuilderEx { List<string> data = new List<string>(); public void Append(string input) { data.Add(input); } public void AppendLine(string input) { data.Add(input + "\n"); } public void AppendLine() { data.Add("\n"); } /// <summary> /// Copies all data to a String. /// Warning: Will fail with an OutOfMemoryException if the data is too /// large to fit into a single contiguous string. /// </summary> public override string ToString() { return String.Join("", data); } /// <summary> /// Process Each section of the data in place. This avoids the /// memory pressure of exporting everything to another contiguous /// block of memory before processing. /// </summary> public void ForEach(Action<string> processData) { foreach (string item in data) processData(item); } } 

现在，您可以使用以下代码将整个内容转储到文件。

 var stringData = new StringBuilderEx(); stringData.Append("Add lots of data"); using (StreamWriter file = new System.IO.StreamWriter(localFilename)) { stringData.ForEach((data) => { file.Write(data); }); }