如何使用StreamReader读取嵌入式资源（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();
}
public class AssemblyTextFileReader
{
private readonly Assembly _assembly;
public AssemblyTextFileReader(Assembly assembly)
{
_assembly = assembly ?? throw new ArgumentNullException(nameof(assembly));
}
public async Task<string> ReadFileAsync(string fileName)
{
var resourceName = _assembly.GetManifestResourceName(fileName);
using (var stream = _assembly.GetManifestResourceStream(resourceName))
{
using (var reader = new StreamReader(stream))
{
return await reader.ReadToEndAsync();
}
}
}
}
public static class AssemblyExtensions
{
public static string GetManifestResourceName(this Assembly assembly, string fileName)
{
string name = assembly.GetManifestResourceNames().SingleOrDefault(n => n.EndsWith(fileName, StringComparison.InvariantCultureIgnoreCase));
if (string.IsNullOrEmpty(name))
{
throw new FileNotFoundException($"Embedded file '{fileName}' could not be found in assembly '{assembly.FullName}'.", fileName);
}
return name;
}
}
// To use the code above:
var reader = new AssemblyTextFileReader(assembly);
string text = await reader.ReadFileAsync(@"MyFile.txt");
public class AssemblyTextFileReader
{
private readonly Assembly _assembly;
public AssemblyTextFileReader(Assembly assembly)
{
_assembly = assembly ?? throw new ArgumentNullException(nameof(assembly));
}
public async Task<string> ReadFileAsync(string fileName)
{
var resourceName = _assembly.GetManifestResourceName(fileName);
using (var stream = _assembly.GetManifestResourceStream(resourceName))
{
using (var reader = new StreamReader(stream))
{
return await reader.ReadToEndAsync();
}
}
}
}
public static class AssemblyExtensions
{
public static string GetManifestResourceName(this Assembly assembly, string fileName)
{
string name = assembly.GetManifestResourceNames().SingleOrDefault(n => n.EndsWith(fileName, StringComparison.InvariantCultureIgnoreCase));
if (string.IsNullOrEmpty(name))
{
throw new FileNotFoundException($"Embedded file '{fileName}' could not be found in assembly '{assembly.FullName}'.", fileName);
}
return name;
}
}
// To use the code above:
var reader = new AssemblyTextFileReader(assembly);
string text = await reader.ReadFileAsync(@"MyFile.txt");
可以使用Assembly.GetManifestResourceStream方法：
添加以下用法使用System.IO；使用System.Reflection；设置相关文件的属性：具有值Embedded Resource的参数生成操作使用以下代码var assembly=assembly.GetExecutingAssembly（）；var resourceName=“MyCompany.MyProduct.MyFile.txt”；使用（流流=程序集.GetManifestResourceStream（resourceName））使用（StreamReader读取器=新StreamReader（流））{string result=reader.ReadToEnd（）；}resourceName是程序集中嵌入的资源之一的名称。例如，如果嵌入了一个名为“MyFile.txt”的文本文件，该文件位于默认名称为“MyCompany.MyProduct”的项目根目录中，则resourceName为“MyCompany.MyProduct.MyFile.txt”。可以使用assembly.GetManifestResourceNames方法获取程序集中所有资源的列表。
只从文件名中获取resourceName（通过传递名称空间）是一个非常明智的做法：
string resourceName = assembly.GetManifestResourceNames()
.Single(str => str.EndsWith("YourFileName.txt"));
完整示例：
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");
