.net - 如何读取嵌入的资源文本文件

Question

如何使用 StreamReader 读取嵌入资源(文本文件)并将其作为字符串返回？我当前的脚本使用 Windows 窗体和文本框，允许用户查找和替换未嵌入的文本文件中的文本。

private void button1_Click(object sender, EventArgs e)
{
    StringCollection strValuesToSearch = new StringCollection();
    strValuesToSearch.Add("Apple");
    string stringToReplace;
    stringToReplace = textBox1.Text;

    StreamReader FileReader = new StreamReader(@"C:\MyFile.txt");
    string FileContents;
    FileContents = FileReader.ReadToEnd();
    FileReader.Close();
    foreach (string s in strValuesToSearch)
    {
        if (FileContents.Contains(s))
            FileContents = FileContents.Replace(s, stringToReplace);
    }
    StreamWriter FileWriter = new StreamWriter(@"MyFile.txt");
    FileWriter.Write(FileContents);
    FileWriter.Close();
}

Answer 1

您可以使用Assembly.GetManifestResourceStream Method :

1. 添加以下用法

    using System.IO;
    using System.Reflection;
   

2. 设置相关文件的属性:
   参数Build Action，值为Embedded Resource

3. 使用以下代码

    var assembly = Assembly.GetExecutingAssembly();
    var resourceName = "MyCompany.MyProduct.MyFile.txt";
   
    using (Stream stream = assembly.GetManifestResourceStream(resourceName))
    using (StreamReader reader = new StreamReader(stream))
    {
        string result = reader.ReadToEnd();
    }
   

   resourceName 是程序集 中嵌入的资源之一的名称。例如，如果您嵌入一个名为 "MyFile.txt" 的文本文件，该文件位于默认命名空间 "MyCompany.MyProduct" 的项目根目录中，则 resourceName 是“MyCompany.MyProduct.MyFile.txt”。您可以使用 Assembly.GetManifestResourceNames Method 获取程序集中所有资源的列表。 .

<小时/>

仅从文件名中获取resourceName(绕过命名空间)的简单技巧:

string resourceName = assembly.GetManifestResourceNames()
  .Single(str => str.EndsWith("YourFileName.txt"));

<小时/>

一个完整的例子:

public string ReadResource(string name)
{
    // Determine path
    var assembly = Assembly.GetExecutingAssembly();
    string resourcePath = name;
    // Format: "{Namespace}.{Folder}.{filename}.{Extension}"
    if (!name.StartsWith(nameof(SignificantDrawerCompiler)))
    {
        resourcePath = assembly.GetManifestResourceNames()
            .Single(str => str.EndsWith(name));
    }

    using (Stream stream = assembly.GetManifestResourceStream(resourcePath))
    using (StreamReader reader = new StreamReader(stream))
    {
        return reader.ReadToEnd();
    }
}

或作为异步扩展方法:

internal static class AssemblyExtensions
{
    public static async Task<string> ReadResourceAsync(this Assembly assembly, string name)
    {
        // Determine path
        string resourcePath = name;
        // Format: "{Namespace}.{Folder}.{filename}.{Extension}"
        if (!name.StartsWith(nameof(SignificantDrawerCompiler)))
        {
            resourcePath = assembly.GetManifestResourceNames()
                .Single(str => str.EndsWith(name));
        }

        using Stream stream = assembly.GetManifestResourceStream(resourcePath)!;
        using StreamReader reader = new(stream);
        return await reader.ReadToEndAsync();
    }
}

// Usage
string resourceText = await Assembly.GetExecutingAssembly().ReadResourceAsync("myResourceName");