/// <summary>
/// 生成引入CSS文件的HTML代码
/// </summary>
/// <param name="path"></param>
/// <param name="inline"></param>
/// <returns></returns>
public static string RefCssFileHtml(string path, bool inline)
{
string filePath = AppRoot + path.Replace("/", "\\");
if (inline)
{
return(string.Format("<style type=\"text/css\">\r\n{0}\r\n</style>",
RetryFile.ReadAllText(filePath, Encoding.UTF8)));
}
else
{
string version = RetryFile.GetLastWriteTimeUtc(filePath).Ticks.ToString();
return(string.Format("<link type=\"text/css\" rel=\"Stylesheet\" href=\"{0}?_t={1}\" />", path, version));
}
}
/// <summary>
/// 生成引入JavaScript文件的HTML代码
/// </summary>
/// <param name="path"></param>
/// <param name="inline"></param>
/// <returns></returns>
public static string RefJsFileHtml(string path, bool inline)
{
string filePath = AppRoot + path.Replace("/", "\\");
if (inline)
{
return(string.Format("<script type=\"text/javascript\">\r\n{0}\r\n</script>",
RetryFile.ReadAllText(filePath, Encoding.UTF8)));
}
else
{
string version = RetryFile.GetLastWriteTimeUtc(filePath).Ticks.ToString();
return(string.Format("<script type=\"text/javascript\" src=\"{0}?_t={1}\"></script>", path, version));
}
}
private void OutputCssFile(HttpContext context)
{
// 1. 先读出文件内容。注意这里使用UTF-8编码
// 2. 用正则表达式搜索所有的引用文件
// 3. 循环匹配结果，
// 4. 对于匹配之外的内容，直接写入StringBuilder实例，
// 5. 如果是文件，则计算版本号，再一起写入到StringBuilder实例
// 6. 最后，StringBuilder实例包含的内容就是处理后的结果。
string text = RetryFile.ReadAllText(context.Request.PhysicalPath, Encoding.UTF8);
MatchCollection matches = s_CssBackgroundImageRegex.Matches(text);
if (matches != null && matches.Count > 0)
{
int lastIndex = 0;
StringBuilder sb = new StringBuilder(text.Length * 2);
foreach (Match m in matches)
{
Group g = m.Groups["file"];
if (g.Success)
{
sb.Append(text.Substring(lastIndex, g.Index - lastIndex + g.Length));
lastIndex = g.Index + g.Length;
//string fileFullPath = HttpRuntime.AppDomainAppPath.TrimEnd('\\') + g.Value.Replace("/", "\\");
string fileFullPath = WebRuntime.Instance.GetPhysicalPath(g.Value.Replace("/", "\\"));
if (RetryFile.Exists(fileFullPath))
{
string version = RetryFile.GetLastWriteTimeUtc(fileFullPath).Ticks.ToString();
sb.Append("?_v=").Append(version);
}
}
}
if (lastIndex > 0 && lastIndex < text.Length)
{
sb.Append(text.Substring(lastIndex));
}
context.Response.Write(sb.ToString());
}
else
{
context.Response.Write(text);
}
}