VB.net不会正确读取文本文件

Question

我一直在尝试使用StreamReader来读取日志文件。我无法验证它的编码内容，因为当我在notepad ++中打开它并选择ANSI编码时，我得到了这个结果：

我在使用ANSI时会得到所需的字符，但后面跟着[NULL] [EOT] [SOH] [NUL] [SI]

之类的东西

当我尝试在VB中读取文件（使用StreamReader或ReadAll）并选择ANSI编码时，我得到的结果字符串是完全错误的。

我如何在VB.net中读取这样的文件？

Answer 1

正如@Daniel A. White在评论中所说，该文件似乎不像“普通”文本文件那样编码。 StreamReader在这种情况下不起作用。我会尝试使用BinaryReader。

Answer 2

Rdb档案？从来没有听说过。快速谷歌让它不那么清晰 - n64数据库文件，Darkbot等...

但是考虑到你的名字，以及打开文件的一般外观，我会说它是一个二进制文件。

如果你想在vb.net中读取文件，你需要一个各种各样的库，我无法帮你解决这个问题，直到你能够了解文件的内容，或者它是什么是用。创建的。

Answer 3

您可以使用IO.File.ReadAllText("File Location", encoding as System.Text.Encoding)方法

Dim textFromFile as string = IO.File.ReadAllText("C:\Users\Jason\Desktop\login20130417.rdb", System.Text.Encoding.ASCII) 'Or Unicode, UFT32, UFT8, UFT7, BigEndianUnicode or default. Default is ANSI.

如果您仍然无法使用默认编码（ANSI）获得所需的文本，那么您可以随时尝试其他6种不同的编码方法。

更新...

看来您的文件已损坏，使用下面的代码我能够获得文件中任何内容的二进制表示，我知道了，

11111111111111010000011100000100000000000000010100000000000100110000000000001000000000000001111000000000001001100000000000111000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001111111111111101000001110000010000000000000001010000000000010011000000000000100000000000000111100000000000101000000000001111111111111101000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001100111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000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大量的空数据表明该文件已损坏，这也解释了为什么我们在尝试读取文件时没有获得大量数据。

代码，

Dim fileData As String = IO.File.ReadAllText("C:\Users\Jason\Desktop\login20130417.rdb")
Dim i As Integer = 0
Dim binaryData As String = ""
Dim ch As String = ""
Do Until i = fileData.Length
   ch = fileData.Chars(i)
   bin = bin & System.Convert.ToString(AscW(ch), 2).PadLeft(8, "0")
   i = i + 1
Loop