Question

我正在使用一些数据，这是一个mvc api。在这种情况下，我使用邮递员传递数据。数据格式是原始文本。我传递给API的值如下，并代表EDF（http://www.edfplus.info/）数据：

  "rawdata":{

 "binaryencoding":"base64","FileID":3,"ExtensionName":"edf",

   "value":"gMnW5\/P5  \/Pz16+HZ087KyMbEwsHBwMDAwMHBwcLCw8PExMXFxsfHyMnJysvLy8zMy8vLysrKysnJycnJycrKysvLy8vMzMzMzc7Q0dLS0dHQzs3MysjHxcTCwL69u7m3trSysbCvra2sq6uqqqqqqqqqq6urrKysrK2tra.....QjY2SnKu7zNnb1Mi7sKehnJiWlJKRkZCQkJCRkZGSkpOTk5SUlJWVlpaXl5iYmZmampqam5qbm5ubm5ycnJ2dnp6fn6CgoaGioqGhoKCfnp6dnJybm5uampqamZmZmZiYmJeXlpaWlZWVlZSUlJOTk5KSkZGRkZGQkJCQkI+Pj4+Pj4+Pj..."

这里你是一些代码。为了简单起见，我将把httppost中的rawdata.value直接分配给之前创建的对象，Value是一个字符串。

myObject.value=rawdata.value;
byte[] data=Base64.Convert.FromBase64String(myObject.value);(myobject.Value); //this gives you a 15.000 positions array.
Stream stream = new MemoryStream(data);
//the stream gets those ReadTimeOut and WriteTimeOut exceptions,after being created
StreamReader Sr=new StreamReader(stream);
char[] header=new char[256];
sr.ReadBlock(header, 0, 256);

当您检查块时，它具有如下所示的所有值，带有符号：

[0] = 65533 '�'

我还要补充一点，当我检查Stream时，我可以通过以下错误看到流readtimeout和writetimeout属性：System.InvalidOperationException

你知道为什么会出现这个错误吗？感谢

Answer 1

创建MemoryStream后问题可能是帽子，位置指向数组的末尾。你试过这个吗？

// this value comes from raw data, and for this example, lets suppose that it is all right.
byte[] data=Base64.bDecodingForString(Value);
Stream stream = new MemoryStream(data);
//the stream gets those ReadTimeOut and WriteTimeOut exceptions,after being created
stream.Position = 0;
if(stream.CanRead) 
{
   StreamReader Sr=new StreamReader(stream);
   char[] header=new char[256];
   sr.ReadBlock(header, 0, 256);
}
else 
{
   //Show error
}

无法读取内存流c＃

1 个答案: