public string GetUpdateLog(string clientVersion)
{
StringBuilder returnstr = new StringBuilder();
string configpath = Server.MapPath("~/") + "AutoUpdateConfig.xml";
XmlNodeList loglist = XMLHelper.GetXmlNodeListByXpath(configpath, "//Root//VersionList//VersionInfo");
List<VersionEntity> velist = new List<VersionEntity>();
foreach (XmlNode item in loglist)
{
VersionEntity veEntity = new VersionEntity();
XmlNodeList childlist = item.ChildNodes;
foreach (XmlNode child in childlist)
{
switch (child.Name)
{
case "Version":
veEntity.MajorPart = Convert.ToInt32(child.Attributes["MajorPart"].Value);
veEntity.MinorPart = Convert.ToInt32(child.Attributes["MinorPart"].Value);
veEntity.PrivatePart = Convert.ToInt32(child.Attributes["PrivatePart"].Value);
veEntity.BuildPart = Convert.ToInt32(child.Attributes["BuildPart"].Value);
break;
case "BuildDate":
veEntity.BuildTime = Convert.ToDateTime(child.InnerText);
break;
case "UpdateLog":
veEntity.VersionDescription = child.InnerXml;
break;
}
}
velist.Add(veEntity);
}
//对版本信息进行排序按日期
Comparison<VersionEntity> com = new Comparison<VersionEntity>(Compare);
velist.Sort(com);
bool exist = false;
for (int i = velist.Count - 1; i >= 0; i--)
{
if (clientVersion.Trim().Equals(velist[i].FullVersion))
{
exist = true;
if (i == velist.Count - 1)
{
return "当前版本为最新版本！";
}
break;
}
else
{
returnstr.Append("版本号：" + velist[i].FullVersion + "<br />更新时间：" + velist[i].BuildTime.ToString() + "<br />");
returnstr.Append("描述：<br />" + velist[i].VersionDescription + "<br />");
returnstr.Append("<br />");
}
}
if (!exist)
{
return "无法找到客户端版本对应的服务器版本！";
}
else
{
return returnstr.ToString();
}
}
private int Compare(VersionEntity info1, VersionEntity info2)
{
int result;
CaseInsensitiveComparer ObjectCompare = new CaseInsensitiveComparer();
result = ObjectCompare.Compare(info1.BuildTime, info2.BuildTime);
return result;
}