public void Databind()
{
//要显示关键字(1),还是Tag(2)
string keyOrTags = EyouSoft.Common.Utils.GetQueryStringValue("keyOrTags");
//关键字Tag标题
string keyOrTagsTitle = EyouSoft.Common.Utils.GetQueryStringValue("keyOrTagsTitle");
//是否要异步请求数据
bool isAjax = Convert.ToBoolean(EyouSoft.Common.Utils.GetQueryStringValue("isAjax"));
EyouSoft.BLL.NewsStructure.TagKeyInfo tagKeyInfoBLL = new EyouSoft.BLL.NewsStructure.TagKeyInfo();
IList <EyouSoft.Model.NewsStructure.TagKeyInfo> list = new List <EyouSoft.Model.NewsStructure.TagKeyInfo>();
System.Text.StringBuilder str = new System.Text.StringBuilder();
//是关键字
if (keyOrTags == "1")
{
if (!string.IsNullOrEmpty(keyOrTagsTitle))
{
list = tagKeyInfoBLL.GetAllKeyWord(keyOrTagsTitle);
}
else
{
list = tagKeyInfoBLL.GetAllKeyWord();
}
}
//Tag
else if (keyOrTags == "2")
{
if (!string.IsNullOrEmpty(keyOrTagsTitle))
{
list = tagKeyInfoBLL.GetAllTag(keyOrTagsTitle);
}
else
{
list = tagKeyInfoBLL.GetAllTag();
}
}
if (list != null)
{
for (int i = 0; i < list.Count; i++)
{
//每行显示8列,奇数列显示颜色:white,偶数列显示颜色:#f3f7ff
if (i % 8 == 0)
{
str.AppendFormat("<tr bgcolor=\"{0}\">", ((i / 8)) % 2 == 0 ? "#f3f7ff" : "white");
}
str.AppendFormat("<td><input id=\"{0}\" name=\"selKey\" type=\"checkbox\" /><label for=\"{0}\">{1}</label></td>", list[i].Id, list[i].ItemName);
if (i + 1 % 10 == 0 && i > 0)
{
str.Append("</tr>");
}
}
}
//是否异步请求
if (isAjax)
{
Response.Clear();
Response.Write(str);
Response.End();
}
list = null;
tagKeyInfoBLL = null;
Html = str.ToString();
}
/// <summary>
/// 内容添加关键字
/// </summary>
private void ContentAddKeys()
{
//计数器,一篇文章最多加5个关键字
int i = 0;
//每篇文章加关键字的最大数量
int count = 5;
//开始查找位置
int startIndex = 0;
//每隔40个字符加一个关键字
int step = 40;
//已处理过的关键字
System.Collections.Hashtable KeyEd = new System.Collections.Hashtable();
Hashtable replay = new Hashtable();
EyouSoft.BLL.NewsStructure.TagKeyInfo TagKeyInfoBll = new EyouSoft.BLL.NewsStructure.TagKeyInfo();
//得到所有的关键字
IList <EyouSoft.Model.NewsStructure.TagKeyInfo> list = TagKeyInfoBll.GetAllKeyWord();
//得到内容中的所有关键字
IList <EyouSoft.Model.NewsStructure.TagKeyInfo> AllKeyListInContent = new List <EyouSoft.Model.NewsStructure.TagKeyInfo>();
//用指定的字符串实例化StringBuilder
StringBuilder strBuilder = null;
//在加关键字之前先删除以前的关键字链接
string reg = "";
string NewsKeys = txtNewsKeys.Value.Trim() + ' ' + txtNewsKey.Value.Trim();
if (!string.IsNullOrEmpty(NewsKeys.Trim(' ')))
{
reg = NewsKeys.Trim(' ').Replace(' ', '|');
}
if (!string.IsNullOrEmpty(reg))
{
reg = reg.TrimEnd('|');
List <string> list2 = parseHref(Content, reg);
if (list2 != null && list != null)
{
foreach (string str in list2)
{
foreach (EyouSoft.Model.NewsStructure.TagKeyInfo item in list)
{
if (str == item.ItemName)
{
AllKeyListInContent.Add(item);
string attrReg = string.Format("(?<==\"[^=<>]*?){0}(?=[^=<>]*?\")", item.ItemName);
string linkReg = string.Format("(?<=<a[\\s\\S]*?>[\\s\\S]*?){0}(?=[\\s\\S]*?</a>)", item.ItemName);
string randStr = GenerateRandomString(item.ItemName.Length);
while (replay.ContainsKey(randStr))
{
randStr = GenerateRandomString(item.ItemName.Length);
}
if (!replay.ContainsValue(item.ItemName))
{
Content = System.Text.RegularExpressions.Regex.Replace(Content, attrReg, randStr);
Content = System.Text.RegularExpressions.Regex.Replace(Content, linkReg, randStr);
replay.Add(randStr, item.ItemName);
}
break;
}
}
}
}
}
strBuilder = new StringBuilder(Content);
//在加关键字之前先删除以前的关键字链接
if (list != null)
{
foreach (EyouSoft.Model.NewsStructure.TagKeyInfo item in list)
{
string temp = string.Empty;
List <string> templist = parseHref(Content, string.Format("<a[^>]*?>{0}</a>", item.ItemName));
if (templist != null && templist.Count > 0)
{
temp = templist[0];
}
if (!string.IsNullOrEmpty(temp))
{
strBuilder = strBuilder.Replace(temp, item.ItemName);
}
}
}
int length = 0;
if (AllKeyListInContent != null)
{
foreach (EyouSoft.Model.NewsStructure.TagKeyInfo item in AllKeyListInContent)
{
//如果替换大于等于最大次数，则跳出
if (i >= count || startIndex > strBuilder.Length)
{
break;
}
//开始替换的位置
int index = strBuilder.ToString().IndexOf(item.ItemName, startIndex);
if (index == -1 && startIndex >= strBuilder.Length)
{
break;
}
;
if ((index - length) < step && length > 0)
{
//下次查找位置的开始
startIndex += item.ItemName.Length;
continue;
}
if (index > -1)
{
//要替换成的字符串
string newString = string.Format("<a InnerLinkId=\"{0}\" {3} href=\"{1}\">{2}</a>", item.Id, item.ItemUrl == "" ? "javascript:" : item.ItemUrl, item.ItemName, string.IsNullOrEmpty(item.ItemUrl) ? "" : "target=\"blank\"");
//替换的字符串
string oldString = item.ItemName;
//判断是否存在相应的关键字
if (!KeyEd.ContainsKey(item.ItemName))
{
//替换指定开始位置到指定长度内的所有字符串
strBuilder.Replace(oldString, newString, index, item.ItemName.Length);
//将已处理的关键字存入哈希表，避免重复替换
KeyEd.Add(item.ItemName, item.Id);
//计数器加1
i++;
length = index + newString.Length;
//下次查找位置的开始
startIndex = length;
}
else
{
//下次查找位置的开始
startIndex = index;
}
}
}
}
System.Collections.IDictionaryEnumerator enumerator1 = replay.GetEnumerator();
while (enumerator1.MoveNext())
{
string key = enumerator1.Key.ToString();
string valeu = enumerator1.Value.ToString();
strBuilder.Replace(key, valeu);
}
Content = strBuilder.ToString();
}