/// <summary>
/// 添加传输文件,列表已经有的,停止原来的下载并使用新的下载任务
/// </summary>
/// <param name="srcurl">文件远程静态url地址</param>
/// <param name="doctype">存储本地的文件类型</param>
/// <returns>成功返回true,失败返回false</returns>
public static bool AddFile(string srcurl, string doctype)
{
if (string.IsNullOrEmpty(srcurl))
{
return(true);
}
string XPath = "//File[@srcurl='{0}' and @doctype='{1}']";
XPath = string.Format(XPath, srcurl, doctype);
XmlElement xmlElem = _xmlDocList.SelectSingleNode(XPath) as XmlElement;
if (null != xmlElem)
{
return(true);
}
xmlElem = _xmlDocList.CreateElement("File");
xmlElem.SetAttribute("srcurl", srcurl);
xmlElem.SetAttribute("doctype", doctype);
xmlElem.SetAttribute("state", "new");
string path = DataAccRes.AppSettings(doctype);
if (string.IsNullOrEmpty(path))
{
path = DataAccRes.AppSettings("DefaultFilePath");
}
string dest = HttpContext.Current.Server.MapPath(path + Path.GetFileName(srcurl));
xmlElem.SetAttribute("localname", dest);
_xmlDocList.DocumentElement.AppendChild(xmlElem);
return(true);
}
/// <summary>
/// 创建数据访问资源,依据资源定义
/// </summary>
/// <param name="DataRes"></param>
public QueryDataRes(DataAccRes DataRes)
{
this.DataRes=DataRes;
}