private void SearchFromIndexSelf()
{
int max = new SUC_NEWS().MaxID();
int rand = new Random().Next(max);
string name = new SUC_NEWS().FindByCondition(new SUC_NEWS()
{
ID = rand
})[0].TITLE;
string[] titles = SplitContent.SplitWords(name);
rand = new Random().Next(titles.Length);
SearchFromIndexData(titles[rand]);
}
private void SearchFromIndexData(string searchkey)
{
string indexPath = Context.Server.MapPath("~/IndexData");
FSDirectory directory = FSDirectory.Open(new DirectoryInfo(indexPath), new NoLockFactory());
IndexReader reader = IndexReader.Open(directory, true);
IndexSearcher searcher = new IndexSearcher(reader);
//搜索条件
PhraseQuery query = new PhraseQuery();
//把用户输入的关键字进行分词
foreach (string word in SplitContent.SplitWords(searchkey))
{
query.Add(new Term("TITLE", word));
}
//query.Add(new Term("content", "C#"));//多个查询条件时 为且的关系
query.SetSlop(100); //指定关键词相隔最大距离
//TopScoreDocCollector盛放查询结果的容器
TopScoreDocCollector collector = TopScoreDocCollector.create(1000, true);
searcher.Search(query, null, collector); //根据query查询条件进行查询，查询结果放入collector容器
//TopDocs 指定0到GetTotalHits() 即所有查询结果中的文档 如果TopDocs(20,10)则意味着获取第20-30之间文档内容 达到分页的效果
ScoreDoc[] docs = collector.TopDocs(0, collector.GetTotalHits()).scoreDocs; //collector.GetTotalHits()
//展示数据实体对象集合
for (int i = 0; i < docs.Length; i++)
{
int docID = docs[i].doc; //得到查询结果文档的ID（Lucene内部分配的ID）
Document doc = searcher.Doc(docID); //根据文档ID来获得文档对象Document
SUC_NEWS mod = new SUC_NEWS();
mod.TITLE = SplitContent.HightLight(searchkey, doc.Get("TITLE"));
mod.TITLE = string.IsNullOrEmpty(mod.TITLE) ? doc.Get("TITLE") : mod.TITLE;
//book.ContentDESCRPTION = doc.Get("content");//未使用高亮
//搜索关键字高亮显示 使用盘古提供高亮插件
mod.CONTENT = SplitContent.HightLight(searchkey, doc.Get("CONTENT"));
mod.CONTENT = string.IsNullOrEmpty(mod.CONTENT) ? doc.Get("CONTENT") : mod.CONTENT;
mod.CONTENT = mod.CONTENT.Replace("<b>", "");
mod.ID = Convert.ToInt32(doc.Get("ID"));
mod.pandaWebUrl = doc.Get("URL");
modResult.Add(mod);
}
}