使用httplistener服务二进制文件

发布于 2025-02-08 15:45:29 字数 597 浏览 1 评论 0原文

我正在尝试在C＃中制作httplistener服务器，该服务器将文件发送给客户端（浏览器上的人）。这是我的代码：

static void SendFile(HttpListenerResponse response, string FileName, string ContentType) {
    response.ContentType = ContentType;
    // Read contents of file
    var reader = new StreamReader(FileName);
    var contents = reader.ReadToEnd();
    reader.Close();
    // Write to output stream
    var writer = new StreamWriter(output);
    writer.Write(contents);
    // Wrap up.
    writer.Close();
    stream.Close();
    response.Close();
}

不幸的是，此代码无法发送二进制文件，例如图像，PDF和许多其他文件类型。如何使此sendfile函数二进制安全？

原文

I am trying to make a httplistener server in c# that sends files to the client (who is on a browser). This is my code:

static void SendFile(HttpListenerResponse response, string FileName, string ContentType) {
    response.ContentType = ContentType;
    // Read contents of file
    var reader = new StreamReader(FileName);
    var contents = reader.ReadToEnd();
    reader.Close();
    // Write to output stream
    var writer = new StreamWriter(output);
    writer.Write(contents);
    // Wrap up.
    writer.Close();
    stream.Close();
    response.Close();
}

Unfortunately, this code cannot send binary files, such as images, PDFs, and lots of other file types. How can I make this SendFile function binary-safe?

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她如夕阳 2025-02-15 15:45:29

感谢您的所有评论和要点链接！您从文件中读取byte []并将这些字节写入我查找的输出流的解决方案，但很令人困惑，因此我做出了一个很短的sendfile函数。

static void SendFile(HttpListenerResponse response, string FileName, string ContentType) {
    response.AddHeader("Content-Type", ContentType);
    var output = response.OutputStream;
    // Open the file
    var file = new FileStream(FileName, FileMode.Open, FileAccess.Read);
    // Write to output stream
    file.CopyTo(output);
    // Wrap up.
    file.Close();
    stream.Close();
    response.Close();
}

此代码仅将文件复制到输出流。

Thank you for all the comments and the gist link! The solution where you read from the file as a byte[] and write those bytes to the output stream I looked up worked, but is was kind of confusing, so I made a really short SendFile function.

static void SendFile(HttpListenerResponse response, string FileName, string ContentType) {
    response.AddHeader("Content-Type", ContentType);
    var output = response.OutputStream;
    // Open the file
    var file = new FileStream(FileName, FileMode.Open, FileAccess.Read);
    // Write to output stream
    file.CopyTo(output);
    // Wrap up.
    file.Close();
    stream.Close();
    response.Close();
}

This code just copies the file to the output stream.

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