Lucene Full Text Search-Starting from zero (2)

1. Creation of Lucene Index

1 /// <Contents>2     ///speak list data incoming CREATE INDEX3     /// </Contents>4     /// <param name= "DataList" ></param>5     /// <returns></returns>6      Public BOOLCreateIndex (list<luceneindexarticle>DataList)7     {8Fsdirectory directory = Fsdirectory.open (NewDirectoryInfo (Indexdic),Newnativefslockfactory ());9IndexWriter writer =NULL;Ten         BOOLIsupdate =indexreader.indexexists (directory); One         if(isupdate) A         { -             if(indexwriter.islocked (directory)) -             { the indexwriter.unlock (directory); -             } -         } -writer =NewIndexWriter (Indexdic, Panguanalyzer,!isupdate, IndexWriter.MaxFieldLength.LIMITED);//false to append (true to delete previous write-back) +  -         foreach(Luceneindexarticle datainchDataList) +         { A CreateIndex (writer, data); at         } - writer. Optimize (); - writer. Close (); -         return true; -     } -      Public BOOLCreateIndex (indexwriter writer, luceneindexarticle data) in     { -         Try to         { +             if(Data = =NULL)return false; -Document doc =NewDocument (); theType type =data. GetType ();  *propertyinfo[] Propertys =type. GetProperties (); $              for(inti =0; i < propertys.length; i++)Panax Notoginseng             {  -PropertyInfo pi =Propertys[i]; the                 stringName =Pi. Name; +                 ObjectObjval = Pi. GetValue (data,NULL); A                 stringValue = Objval = =NULL?"": Objval. ToString ();//value the                 if(Name = ="ID")//ID in the write index must be non-participle, or fuzzy search and delete, there will be confusion +                 { -Doc. ADD (NewField (name, value, Field.Store.YES, Field.Index.NOT_ANALYZED));//ID not participle $                 } $                 Else -                 { -Doc. ADD (NewField (name, value, Field.Store.YES, Field.Index.ANALYZED)); the                 } -             }Wuyi writer. Adddocument (DOC); the         } -         Catch(System.IO.FileNotFoundException fnfe) Wu         { -             ThrowFnfe; About         } $         return true; -}

Index storage directory and Pangu configuration file storage

1  /// <Contents>2     ///Index Store Directory3     /// </Contents>4     /// <Contents>5     ///Pangu participle configuration file6     /// </Contents>7     protected stringPanguxmlpath8     {9         GetTen         { One             return @"F:\DCIM\PanGu.xml"; A         } -}

1  protected string Indexdic 2     {3         get4        {5             return @" F:\DCIM " ; 6         }7     }

Click Create Index

The index is created, and these are the generated disk files.

The next section is how to retrieve data from the index

Lucene Full Text Search-Starting from zero (2)