我使用扩展方法进行了此操作,并在CSHTML文件中使用了它。 此实现将时间戳缓存1分钟,因此我们不会对磁盘??造成太大的影响。
这是扩展方法:
public static class JavascriptExtension {
public static MvcHtmlString IncludeVersionedJs(this HtmlHelper helper, string filename) {
string version = GetVersion(helper, filename);
return MvcHtmlString.Create("<script type='text/javascript' src='" + filename + version + "'></script>");
}
private static string GetVersion(this HtmlHelper helper, string filename)
{
var context = helper.ViewContext.RequestContext.HttpContext;
if (context.Cache[filename] == null)
{
var physicalPath = context.Server.MapPath(filename);
var version = $"?v={new System.IO.FileInfo(physicalPath).LastWriteTime.ToString("MMddHHmmss")}";
context.Cache.Add(filename, version, null,
DateTime.Now.AddMinutes(5), TimeSpan.Zero,
CacheItemPriority.Normal, null);
return version;
}
else
{
return context.Cache[filename] as string;
}
}
}
然后在CSHTML页面中:
@Html.IncludeVersionedJs("/MyJavascriptFile.js")
在呈现的HTML中,其显示为:
<script type='text/javascript' src='/MyJavascriptFile.js?20111129120000'></script>