/// <summary>
/// 设置关键字高亮
/// </summary>
/// <param name="dicKeywords">关键字列表</param>
/// <param name="model">返回的数据模型</param>
/// <returns></returns>
private LiteNewsModel SetHighlighter(Dictionary <string, string> dicKeywords, LiteNewsModel model)
{
//return model;
SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new Segment())
{
FragmentSize = 50
};
string strTitle = string.Empty;
string strAbstract = string.Empty;
dicKeywords.TryGetValue("title", out strTitle);
dicKeywords.TryGetValue("abstract", out strAbstract);
try
{
if (!string.IsNullOrEmpty(strTitle))
{
var transStr = highlighter.GetBestFragment(strTitle, model.Title);
model.Title = string.IsNullOrEmpty(transStr) ? model.Title : transStr;
}
if (!string.IsNullOrEmpty(strAbstract))
{
var transStr = highlighter.GetBestFragment(strAbstract, model.Abstract);
model.Abstract = string.IsNullOrEmpty(transStr) ? model.Abstract : transStr;
}
}
catch
{
return(model);
}
return(model);
}
/// <summary>
/// 将关键字进行高亮显示
/// </summary>
/// <param name="keywords">属性和关键字的字典</param>
/// <param name="t">高亮显示的对象</param>
/// <returns></returns>
public AbstractFileBase InitHightLight(Dictionary <string, string> keywords, AbstractFileBase t)
{
if (t == null)
{
throw new Exception("需要高亮显示的对象不存在");
}
SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new Segment());
highlighter.FragmentSize = MAXFRAGMENTSIZE;
foreach (var item in hightLightFields)
{
switch (item)
{
//case HightLightField.FileName:
// string fileName = string.Empty;
// keywords.TryGetValue("fileName", out fileName);
// if (!string.IsNullOrWhiteSpace(fileName))
// {
// t.FileName = highlighter.GetBestFragment(fileName, t.FileName);
// }
// break;
//case HightLightField.FilePath:
// string filePath = string.Empty;
// keywords.TryGetValue("filePath", out filePath);
// if (!string.IsNullOrWhiteSpace(filePath))
// {
// t.FilePath = highlighter.GetBestFragment(filePath, t.FilePath);
// }
// break;
//case HightLightField.CreateTime:
// string createTime = string.Empty;
// keywords.TryGetValue("createTime", out createTime);
// if (!string.IsNullOrWhiteSpace(createTime))
// {
// t.CreateTime = highlighter.GetBestFragment(createTime, t.CreateTime);
// }
// break;
case HightLightField.Content:
string content = string.Empty;
keywords.TryGetValue("content", out content);
if (!string.IsNullOrWhiteSpace(content))
{
//有问题
t.Content = highlighter.GetBestFragment(content, t.Content);
}
break;
//case HightLightField.UpLoadPersonId:
// string upLoadPersonId = string.Empty;
// keywords.TryGetValue("upLoadPersonId", out upLoadPersonId);
// if (!string.IsNullOrWhiteSpace(upLoadPersonId))
// {
// //有问题
// t.UpLoadPersonId = highlighter.GetBestFragment(upLoadPersonId, t.UpLoadPersonId);
// }
// break;
}
}
return(t);
}
/// <summary>
/// 把content按照keywords进行高亮
/// </summary>
/// <param name="keywords"></param>
/// <param name="content"></param>
/// <returns></returns>
private static string Highlight(string keywords, string content)
{
SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<strong>", "</strong>");
Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new Segment());
highlighter.FragmentSize = 200;
return(highlighter.GetBestFragment(keywords, content));
}
/// <summary>
/// 在title和content字段中查询数据
/// </summary>
/// <param name="keyword"></param>
/// <returns></returns>
public List <SearchResult> Search(string keyword)
{
string[] fileds = { "title", "content" };//查询字段
QueryParser parser = null;
parser = new MultiFieldQueryParser(version, fileds, analyzer);//多个字段查询
Query query = parser.Parse(keyword);
int n = 1000;
IndexSearcher searcher = new IndexSearcher(directory_luce, true);//true-表示只读
TopDocs docs = searcher.Search(query, (Filter)null, n);
if (docs == null || docs.TotalHits == 0)
{
return(null);
}
else
{
List <SearchResult> list = new List <SearchResult>();
int counter = 1;
foreach (ScoreDoc sd in docs.ScoreDocs)//遍历搜索到的结果
{
try
{
Document doc = searcher.Doc(sd.Doc);
int id = int.Parse(doc.Get("id"));
string title = doc.Get("title");
string content = doc.Get("content");
string blogTag = doc.Get("blogTag");
string url = doc.Get("url");
int flag = int.Parse(doc.Get("flag"));
int clickQuantity = int.Parse(doc.Get("clickQuantity"));
string createdate = doc.Get("createdate");
PanGu.HighLight.SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
PanGu.HighLight.Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new PanGu.Segment());
highlighter.FragmentSize = 50;
content = highlighter.GetBestFragment(keyword, content);
string titlehighlight = highlighter.GetBestFragment(keyword, title);
if (titlehighlight != "")
{
title = titlehighlight;
}
list.Add(new SearchResult(title, content, url, blogTag, id, clickQuantity, flag));
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
counter++;
}
return(list);
}
//st.Stop();
//Response.Write("查询时间：" + st.ElapsedMilliseconds + " 毫秒<br/>");
}
public static string HightLight(string keyword, string content)
{
//创建HTMLFormatter,参数为高亮单词的前后缀
var simpleHtmlFormatter = new SimpleHTMLFormatter("<font style=\"font-style:normal;color:#cc0000;\"><b>", "</b></font>");
//创建 Highlighter ，输入HTMLFormatter 和 盘古分词对象Semgent
var highlighter = new Highlighter(simpleHtmlFormatter, new Segment());
//设置每个摘要段的字符数
highlighter.FragmentSize = 1000;
//获取最匹配的摘要段
return highlighter.GetBestFragment(keyword, content);
}
/// <summary>
/// 设置高亮
/// </summary>
/// <param name="keywords">关键字</param>
/// <param name="matchField">字段信息</param>
/// <returns></returns>
public void SetHighLight(string keywords, LnMatchField matchField)
{
var format = new SimpleHTMLFormatter(matchField.KeywordPrefix, matchField.KeywordSuffix);
var highLighter = new Highlighter(format, new Segment());
highLighter.FragmentSize = matchField.FragmentSize < 1 ? this.Value.Length : matchField.FragmentSize;
var newValue = highLighter.GetBestFragment(keywords, this.Value);
if (string.IsNullOrEmpty(newValue) == false)
{
this.Value = newValue;
}
}
//需要添加PanGu.HighLight.dll的引用
/// <summary>
/// 搜索结果高亮显示
/// </summary>
/// <param name="keyword"> 关键字 </param>
/// <param name="content"> 搜索结果 </param>
/// <returns> 高亮后结果 </returns>
public static string HightLight(string keyword, string content)
{
//创建HTMLFormatter,参数为高亮单词的前后缀
PanGu.HighLight.SimpleHTMLFormatter simpleHTMLFormatter =
new PanGu.HighLight.SimpleHTMLFormatter("<font style=\"font-style:normal;color:#ff0000;\"><b>", "</b></font>");
//创建 Highlighter ，输入HTMLFormatter 和 盘古分词对象Semgent
PanGu.HighLight.Highlighter highlighter =
new PanGu.HighLight.Highlighter(simpleHTMLFormatter,
new Segment());
//设置每个摘要段的字符数
highlighter.FragmentSize = 1000;
//获取最匹配的摘要段
return(highlighter.GetBestFragment(keyword, content));
}
//高亮显示
public static string CreateHightLight(string keywords, string Content)
{
PanGu.HighLight.SimpleHTMLFormatter simpleHTMLFormatter =
new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
//创建Highlighter ，输入HTMLFormatter 和盘古分词对象Semgent
PanGu.HighLight.Highlighter highlighter =
new PanGu.HighLight.Highlighter(simpleHTMLFormatter,
new Segment());
//设置每个摘要段的字符数
highlighter.FragmentSize = 150;
//获取最匹配的摘要段
var result = highlighter.GetBestFragment(keywords, Content);
return(string.IsNullOrEmpty(result) ? Content : result);
}
private Record SetHighlighter(string Keywords, Record model)
{
SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new Segment());
highlighter.FragmentSize = 50;
// string strTitle = string.Empty;
//string strContent = string.Empty;
//dicKeywords.TryGetValue("title", out strTitle);
//dicKeywords.TryGetValue("content", out strContent);
// model.Title = highlighter.GetBestFragment(Keywords, model.Title);
model.Content = highlighter.GetBestFragment(Keywords, model.Content);
return(model);
}
private Record SetHighlighter(string Keywords, Record model)
{
SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new Segment());
highlighter.FragmentSize = 50;
string strTitle;
string strContent;
strTitle = highlighter.GetBestFragment(Keywords, model.Title);
if (strTitle != "")
{
model.Title = strTitle;
}
strContent = highlighter.GetBestFragment(Keywords, model.Content);
if (strContent != "")
{
model.Content = strContent;
}
else if (model.Content != "")
{
Random r = new Random();
int start = r.Next(0, model.Content.Length - 1);
int len = model.Content.Length - 1 - start;
if (len > 20)
{
model.Content = model.Content.Substring(start, 20);
}
else
{
model.Content = model.Content.Substring(start);
}
}
return(model);
}
/// <summary>
/// 设置关键字高亮
/// </summary>
/// <param name="dicKeywords">关键字列表</param>
/// <param name="model">返回的数据模型</param>
/// <returns></returns>
private CustomerEntity SetHighlighter(Dictionary <string, string> dicKeywords, CustomerEntity model)
{
SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new Segment());
highlighter.FragmentSize = 250;
string strTitle = string.Empty;
string strContent = string.Empty;
dicKeywords.TryGetValue("FullName", out strTitle);
if (!string.IsNullOrEmpty(strTitle))
{
string title = model.FullName;
model.FullName = highlighter.GetBestFragment(strTitle, model.FullName);
if (string.IsNullOrEmpty(model.FullName))
{
model.FullName = title;
}
}
return(model);
}
/// <summary>
/// 设置关键字高亮
/// </summary>
/// <param name="dicKeywords">关键字列表</param>
/// <param name="model">返回的数据模型</param>
/// <returns></returns>
private Article SetHighlighter(Dictionary <string, string> dicKeywords, Article model)
{
SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"green\">", "</font>");
Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new Segment());
highlighter.FragmentSize = 50;
string strTitle = string.Empty;
string strContent = string.Empty;
dicKeywords.TryGetValue("title", out strTitle);
dicKeywords.TryGetValue("content", out strContent);
if (!string.IsNullOrEmpty(strTitle))
{
model.Title = highlighter.GetBestFragment(strTitle, model.Title);
}
if (!string.IsNullOrEmpty(strContent))
{
model.Content = highlighter.GetBestFragment(strContent, model.Content);
}
return(model);
}
static ResultHighlighter()
{
var simpleHTMLFormatter = new SimpleHTMLFormatter(Start, End);
Highlighter = new Highlighter(simpleHTMLFormatter, new Segment()) { FragmentSize = 100 };
}
public static List<SeekWebNewsItem> Search(String indexDir, String q, int pageLen, int pageNo, out int recCount)
{
string keywords = q;
IndexSearcher search = new IndexSearcher(indexDir);
q = GetKeyWordsSplitBySpace(q, new PanGuTokenizer());
QueryParser queryParser = new QueryParser("contents", new PanGuAnalyzer(true));
Query query = queryParser.Parse(q);
QueryParser titleQueryParser = new QueryParser("title", new PanGuAnalyzer(true));
Query titleQuery = titleQueryParser.Parse(q);
BooleanQuery bq = new BooleanQuery();
bq.Add(query, BooleanClause.Occur.SHOULD);
bq.Add(titleQuery, BooleanClause.Occur.SHOULD);
Hits hits = search.Search(bq);
List<SeekWebNewsItem> result = new List<SeekWebNewsItem>();
recCount = hits.Length();
int i = (pageNo - 1) * pageLen;
while (i < recCount && result.Count < pageLen)
{
SeekWebNewsItem news = null;
try
{
news = new SeekWebNewsItem();
news.NewsId = long.Parse(hits.Doc(i).Get("id"));
string Title = hits.Doc(i).Get("title");
string NewsText = hits.Doc(i).Get("contents");
String strTime = hits.Doc(i).Get("time");
PanGu.HighLight.SimpleHTMLFormatter simpleHTMLFormatter =
new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
PanGu.HighLight.Highlighter highlighter =
new PanGu.HighLight.Highlighter(simpleHTMLFormatter,
new Segment());
highlighter.FragmentSize = 50;
news.Abstract = highlighter.GetBestFragment(keywords, NewsText);
news.TitleHighLighter = highlighter.GetBestFragment(keywords, Title);
if (string.IsNullOrEmpty(news.TitleHighLighter))
{
news.TitleHighLighter = Title;
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
finally
{
result.Add(news);
i++;
}
}
search.Close();
return result;
}
/// <summary>
/// 把content按照keywords进行高亮
/// </summary>
/// <param name="keywords"></param>
/// <param name="content"></param>
/// <returns></returns>
private static string Highlight(string keywords, string content)
{
SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<strong>", "</strong>");
Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new Segment());
highlighter.FragmentSize = 200;
return highlighter.GetBestFragment(keywords, content);
}
/// <summary>
/// 在title和content字段中查询数据
/// </summary>
/// <param name="keyword"></param>
/// <returns></returns>
public List<SearchResult> Search(string keyword)
{
string[] fileds = { "title", "content" };//查询字段
QueryParser parser = null;
parser = new MultiFieldQueryParser(version, fileds, analyzer);//多个字段查询
Query query = parser.Parse(keyword);
int n = 1000;
IndexSearcher searcher = new IndexSearcher(directory_luce, true);//true-表示只读
TopDocs docs = searcher.Search(query, (Filter)null, n);
if (docs == null || docs.TotalHits == 0)
{
return null;
}
else
{
List<SearchResult> list = new List<SearchResult>();
int counter = 1;
foreach (ScoreDoc sd in docs.ScoreDocs)//遍历搜索到的结果
{
try
{
Document doc = searcher.Doc(sd.Doc);
int id = int.Parse(doc.Get("id"));
string title = doc.Get("title");
string content = doc.Get("content");
string blogTag = doc.Get("blogTag");
string url = doc.Get("url");
int flag = int.Parse(doc.Get("flag"));
int clickQuantity = int.Parse(doc.Get("clickQuantity"));
string createdate = doc.Get("createdate");
PanGu.HighLight.SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
PanGu.HighLight.Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new PanGu.Segment());
highlighter.FragmentSize = 50;
content = highlighter.GetBestFragment(keyword, content);
string titlehighlight = highlighter.GetBestFragment(keyword, title);
if (titlehighlight != "") title = titlehighlight;
list.Add(new SearchResult(title, content, url, blogTag, id, clickQuantity, flag));
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
counter++;
}
return list;
}
//st.Stop();
//Response.Write("查询时间：" + st.ElapsedMilliseconds + " 毫秒<br/>");
}
/// <summary>
/// 设置关键字高亮
/// </summary>
/// <param name="dicKeywords">关键字列表</param>
/// <param name="model">返回的数据模型</param>
/// <returns></returns>
private 供应商读出Lucene SetHighlighter(Dictionary<string, string> dicKeywords, 供应商读出Lucene model)
{
SimpleHTMLFormatter simpleHTMLFormatter = new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
Highlighter highlighter = new PanGu.HighLight.Highlighter(simpleHTMLFormatter, new Segment());
highlighter.FragmentSize = 50;
string strTitle = string.Empty;
dicKeywords.TryGetValue("title", out strTitle);
if (!string.IsNullOrEmpty(strTitle))
{
string title = highlighter.GetBestFragment(strTitle, model.供应商.企业基本信息.企业名称);
if (!string.IsNullOrEmpty(title))
model.供应商.企业基本信息.企业名称 = title;
}
return model;
}
private string HighLight(string keyword, string content)
{
SimpleHTMLFormatter simpleHtmlFormatter =
new SimpleHTMLFormatter("<font style=\"color:#cc0000;\"><b>", "</b></font>");
Highlighter highlighter = new Highlighter(simpleHtmlFormatter, new Segment());
highlighter.FragmentSize = 1000;
return highlighter.GetBestFragment(keyword, content);
}