获取.NET程序集的日期

Question

如何从当前.NET程序集中检索创建日期？

我想添加一些简单的功能,我的应用程序在主程序集的构建日期后一周停止工作.我已经编写了在给定日期之后杀死我的应用程序的代码.我只需要以编程方式从程序集中检索创建日期.

Answer 1

以下内容基于:https://blog.codinghorror.com/determining-build-date-the-hard-way/

public static class ApplicationInformation
{
    /// <summary>
    /// Gets the executing assembly.
    /// </summary>
    /// <value>The executing assembly.</value>
    public static System.Reflection.Assembly ExecutingAssembly
    {
        get { return executingAssembly ?? (executingAssembly = System.Reflection.Assembly.GetExecutingAssembly()); }
    }
    private static System.Reflection.Assembly executingAssembly;

    /// <summary>
    /// Gets the executing assembly version.
    /// </summary>
    /// <value>The executing assembly version.</value>
    public static System.Version ExecutingAssemblyVersion
    {
        get { return executingAssemblyVersion ?? (executingAssemblyVersion = ExecutingAssembly.GetName().Version); }
    }
    private static System.Version executingAssemblyVersion;

    /// <summary>
    /// Gets the compile date of the currently executing assembly.
    /// </summary>
    /// <value>The compile date.</value>
    public static System.DateTime CompileDate
    {
        get
        {
            if (!compileDate.HasValue)
                compileDate = RetrieveLinkerTimestamp(ExecutingAssembly.Location);
            return compileDate ?? new System.DateTime();
        }
    }
    private static System.DateTime? compileDate;

    /// <summary>
    /// Retrieves the linker timestamp.
    /// </summary>
    /// <param name="filePath">The file path.</param>
    /// <returns></returns>
    /// <remarks>http://www.codinghorror.com/blog/2005/04/determining-build-date-the-hard-way.html</remarks>
    private static System.DateTime RetrieveLinkerTimestamp(string filePath)
    {
        const int peHeaderOffset = 60;
        const int linkerTimestampOffset = 8;
        var b = new byte[2048];
        System.IO.FileStream s = null;
        try
        {
            s = new System.IO.FileStream(filePath, System.IO.FileMode.Open, System.IO.FileAccess.Read);
            s.Read(b, 0, 2048);
        }
        finally
        {
            if(s != null)
                s.Close();
        }
        var dt = new System.DateTime(1970, 1, 1, 0, 0, 0).AddSeconds(System.BitConverter.ToInt32(b, System.BitConverter.ToInt32(b, peHeaderOffset) + linkerTimestampOffset));
        return dt.AddHours(System.TimeZone.CurrentTimeZone.GetUtcOffset(dt).Hours);
    }
}

Answer 2

我不认为程序集本身包含它的创建日期.我怀疑你能得到的最接近的是汇编文件本身的创建日期:

File.GetCreationTime(Assembly.GetExecutingAssembly().Location)

应该做的伎俩.

编辑:

我认为杰夫阿特伍德的解决方案,在这个线程中由"手榴弹"编写,可能是现在更好的方法.

Answer 3

有什么不对:

System.IO.File.GetLastWriteTime(Assembly.GetExecutingAssembly().Location);

Answer 4

也许关于编码恐怖的这篇文章可能有所帮助

Answer 5

这应该工作：

var entryAssembly = Assembly.GetEntryAssembly();
var fileInfo = new FileInfo(entryAssembly.Location);
var buildDate = fileInfo.LastWriteTime;