Thank you Marc and thank u all... it` working :)
:clap:
Marc Schwarz wrote:
>
> Maybe you should seperate the add method from the database function...
>
> Separate the db loop something like that:
>
> try
> {
> ResultSet rs2 = stm.executeQuery(sql);
> while(rs2.next()) {
> String text = rs2.getString("textvalue");
> addDoc(w, text,rs2.getString("id"));
> count_ds++;
> }
>
>
> and then the addDoc seems something like that:
>
>
> private static void addDoc(IndexWriter w, String value,String empty)
> throws
> IOException {
> Document doc = new Document();
> doc.add(new Field("title", value, Field.Store.YES,
> Field.Index.ANALYZED));
> w.addDocument(doc);
> }
>
>
> -----Ursprüngliche Nachricht-----
> Von: luciusvorenus [mailto:[email protected]]
> Gesendet: Donnerstag, 28. Januar 2010 23:02
> An: [email protected]
> Betreff: Re: AW: index a database
>
>
> yes.... many thanks ..
> But .... /.../my index folder is empty. Have I done something wrong in
> "private static void indexDocs"? It is not indexed
>
>
>
>
> Marc Schwarz wrote:
>>
>> StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_CURRENT);
>>
>> any difference with that ?
>>
>> -----Ursprüngliche Nachricht-----
>> Von: luciusvorenus [mailto:[email protected]]
>> Gesendet: Donnerstag, 28. Januar 2010 22:46
>> An: [email protected]
>> Betreff: Re: index a database
>>
>>
>> lucene 3.3
>>
>> i tried liek this
>>
>> ""
>> import org.apache.lucene.demo.FileDocument;
>> import org.apache.lucene.document.Document;
>> import org.apache.lucene.document.Field;
>> import org.apache.lucene.analysis.Analyzer;
>> import org.apache.lucene.analysis.standard.StandardAnalyzer;
>> import org.apache.lucene.index.IndexWriter;
>> import org.apache.lucene.search.IndexSearcher;
>> import org.apache.lucene.search.Query;
>> import org.apache.lucene.queryParser.QueryParser;
>> import org.apache.lucene.store.FSDirectory;
>> import org.apache.lucene.util.Version;
>> import java.sql.*;
>> import java.util.Properties;
>> import org.apache.lucene.document.*;
>> import java.io.*;
>> import org.apache.lucene.store.Directory;
>> import org.apache.lucene.store.FSDirectory;
>> import org.apache.lucene.store.SimpleFSDirectory;
>>
>> public class Con{
>> public static void main(String[] args) throws Exception
>>
>> {
>> final File INDEX_DIR = new File("index");
>>
>>
>> Class.forName("com.mysql.jdbc.Driver").newInstance();
>> Connection conn =
>> DriverManager.getConnection("jdbc:mysql://127.0.0.1/test", "root",
>> "passwort");
>> StandardAnalyzer analyzer = new StandardAnalyzer(null);
>> Directory directory = new SimpleFSDirectory(new
>> File("home/lucius/Desktop/index"));
>> IndexWriter w = new IndexWriter(directory, analyzer,true,
>> new
>> IndexWriter.MaxFieldLength(25000));
>>
>> System.out.println("Indexing to directory '" + INDEX_DIR
>> + "'...");
>> indexDocs(w, conn);
>> w.optimize();
>> w.close();
>>
>>
>>
>> }
>>
>>
>> private static void indexDocs(IndexWriter writer, Connection conn)
> throws
>> Exception {
>> String sql = "select c_id, city from city";
>> Statement stmt = conn.createStatement();
>> ResultSet rs = stmt.executeQuery(sql);
>> while (rs.next()) {
>> Document d = new Document();
>> d.add(new Field("c_id", rs.getString("c_id"), Field.Store.YES,
>> Field.Index.NO));
>> d.add(new Field("city", rs.getString("city"), Field.Store.NO,
>> Field.Index.ANALYZED));
>>
>> writer.addDocument(d);
>> }
>>
>> }
>> }
>>
>>
>>
>> """"
>> I ' on the right track ?
>>
>> now i get this message after compiling
>> ""
>> Exception in thread "main" java.lang.NullPointerException
>> at
>>
> org.apache.lucene.analysis.StopFilter.getEnablePositionIncrementsVersionDefa
>> ult(StopFilter.java:162)
>> at
>>
> org.apache.lucene.analysis.standard.StandardAnalyzer.<init>(StandardAnalyzer
>> .java:73)
>> at
>>
> org.apache.lucene.analysis.standard.StandardAnalyzer.<init>(StandardAnalyzer
>> .java:63)
>> at Con.main(Con.java:29)
>> """
>>
>>
>> once again many thanks
>>
>> Erick Erickson wrote:
>>>
>>> What version are you using? Because there's no such constructor
>>> (i.e. one that takes a File) in 3.0.....
>>>
>>> You might want to use something like FSDirectory.open(file) in
>>> your IndexWriter constructor....
>>>
>>> If this doesn't work, more details please....
>>>
>>> Erick
>>>
>>> On Thu, Jan 28, 2010 at 3:30 PM, luciusvorenus
>>> <[email protected]>wrote:
>>>
>>>>
>>>> Hello
>>>>
>>>> I tried to index a database
>>>>
>>>> ""
>>>> import org.apache.lucene.demo.FileDocument;
>>>> import org.apache.lucene.document.Document;
>>>> import org.apache.lucene.document.Field;
>>>> import org.apache.lucene.analysis.Analyzer;
>>>> import org.apache.lucene.analysis.standard.StandardAnalyzer;
>>>> import org.apache.lucene.index.IndexWriter;
>>>> import org.apache.lucene.search.IndexSearcher;
>>>> import org.apache.lucene.search.Query;
>>>> import org.apache.lucene.queryParser.QueryParser;
>>>> import org.apache.lucene.store.FSDirectory;
>>>> import org.apache.lucene.util.Version;
>>>> import java.sql.*;
>>>> import java.util.Properties;
>>>> import org.apache.lucene.document.*;
>>>> import java.io.*;
>>>> import org.apache.lucene.store.Directory;
>>>> import org.apache.lucene.store.FSDirectory;
>>>>
>>>> public class Con{
>>>> public static void main(String[] args) throws Exception
>>>>
>>>> {
>>>> final File INDEX_DIR = new File("index");
>>>>
>>>>
>>>> Class.forName("com.mysql.jdbc.Driver").newInstance();
>>>> Connection conn =
>>>> DriverManager.getConnection("jdbc:mysql://127.0.0.1/test", "root",
>>>> "passwort");
>>>> StandardAnalyzer analyzer = new
>>>> StandardAnalyzer(null);
>>>> IndexWriter writer = new IndexWriter(INDEX_DIR,
>>>> analyzer,
>>>> true);
>>>> System.out.println("Indexing to directory '" +
>>>> INDEX_DIR
>>>> + "'...");
>>>> indexDocs(writer, conn);
>>>> writer.optimize();
>>>> writer.close();
>>>>
>>>>
>>>>
>>>> }
>>>>
>>>>
>>>> private static void indexDocs(IndexWriter writer, Connection conn)
>>>> throws
>>>> Exception {
>>>> String sql = "select c_id, city from city";
>>>> Statement stmt = conn.createStatement();
>>>> ResultSet rs = stmt.executeQuery(sql);
>>>> while (rs.next()) {
>>>> Document d = new Document();
>>>> d.add(new Field("c_id", rs.getString("c_id"),
>>>> Field.Store.YES,
>>>> Field.Index.NO));
>>>> d.add(new Field("city", rs.getString("city"),
>>>> Field.Store.NO,
>>>> Field.Index.ANALYZED));
>>>>
>>>> writer.addDocument(d);
>>>> }
>>>>
>>>> }
>>>> }
>>>> """
>>>> and i get this message
>>>>
>>>> ""
>>>> symbol : constructor
>>>>
>>>>
>>
> IndexWriter(java.io.File,org.apache.lucene.analysis.standard.StandardAnalyze
>> r,boolean)
>>>> location: class org.apache.lucene.index.IndexWriter
>>>> IndexWriter writer = new IndexWriter(INDEX_DIR,
>>>> analyzer,
>>>> true);
>>>> ^
>>>> 1 error
>>>>
>>>> What i am doing wrong??
>>>>
>>>> I'm a newbie ...
>>>>
>>>> Thank U
>>>> --
>>>> View this message in context:
>>>> http://old.nabble.com/index-a-database-tp27358959p27358959.html
>>>> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>>>>
>>>>
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>>>>
>>>>
>>>
>>>
>>
>> --
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>>
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>>
>>
>
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>
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