[英]how to dynamically add the version in the css file?
如何使用編譯ASP或mb javascript在css文件(例如:main.css?v = 123129401278)中動態添加版本。 這是解決緩存問題
我曾經為此使用ScriptManager
。 我檢測到ModifiedDateTime
並將其添加到文件中,因此無法將其緩存
這是完整的代碼
<asp:ScriptManager runat="server" EnablePageMethods="true" EnablePartialRendering="true"
ID="sm" OnResolveScriptReference="sm_ResolveScriptReference">
<Scripts>
<asp:ScriptReference Path="~/scripts/jquery-1.4.2.min.js" />
</Scripts>
</asp:ScriptManager>
然后
protected void sm_ResolveScriptReference(object sender, ScriptReferenceEventArgs e)
{
if (!String.IsNullOrEmpty(e.Script.Path))
{
e.AddVersionToScriptPath(Server.MapPath(e.Script.Path));
}
}
public static void AddVersionToScriptPath(this System.Web.UI.ScriptReferenceEventArgs scrArg, string fullpath)
{
string scriptpath = scrArg.Script.Path;
var fn = GetFileWriteTime(fullpath);
if (!String.IsNullOrEmpty(ConfigurationManager.AppSettings["minifyJS"]) && ConfigurationManager.AppSettings["minifyJS"] == "1")
scriptpath = scriptpath.Contains(".min.") ? scriptpath : scriptpath.Replace(".js", ".min.js");
scrArg.Script.Path = String.Format("{0}?{1}", scriptpath, fn);
}
public static string GetFileWriteTime(string fullpath)
{
string fw = "";
if (File.Exists(fullpath))
{
FileInfo fi = new FileInfo(fullpath);
fw += fi.LastWriteTime.ToString("yyMMddhhmm");
}
return fw;
}
嘗試這個:
<link rel="stylesheet" type="text/css" href="http://mysite/style.css?id="+generateUUID()>
GenrateUUID
function generateUUID() {
var d = new Date().getTime();
var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
var r = (d + Math.random()*16)%16 | 0;
d = Math.floor(d/16);
return (c=='x' ? r : (r&0x7|0x8)).toString(16);
});
return uuid;
};
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