Dammit, i just wrote a long mail, and opera found out that it should just
delete it before i got to send it:( grrrrr..
well,
A short version. You are misunderstanding the field functions I think.
final Document doc = new Document();
doc.add(new Field("resume_name", resume_name, Store.YES,
Index.UN_TOKENIZED));
doc.add(new Field("details", details, Store.YES, Index.UN_TOKENIZED));
writer.addDocument(doc);
Stores a document with TWO fields, one is called "resume_name", with the
value of your variable resume_name, and the other field is called
"details", with the value of your variable named details.
You should consider storing these documents in the index using
Index.TOKENIZED. Please check the API.
The problem lies in the searching.
:
I would do it like this: (im not catching any exceptions, thats up to
you!):
Analyzer analyzer = new StandardAnalyzer();
//the first argument is the fieldname to search in, in your case either
"resume_name" or "details".
QueryParser parser = new QueryParser("details", analyzer);
//this takes the indexpath as an argument, in your case it is "index"
IndexSearcher searcher = new IndexSearcher("index");
String querystring = "whats new pussycat";
Query query = parser.parse(querystring);
Hits hits = searcher.search(query);
//Instead of Hits, you can use HitsCollector, see the wiki or the API.
You now have the hits object, wich you can use to iterate over your
results and access them in this way:
Document doc = hits.doc(i); // where i is the iterator
THen you can access your stored fields by doing this:
String resume_name = doc.get("resume_name");
String details = doc.get("details");
Hopefully this helps you a bit.
On Fri, 30 Jun 2006 15:39:24 +0200, <[EMAIL PROTECTED]> wrote:
hi,
i am able to index the database but while searching
it does'nt
show any result
i am sending u part of my code just chk and tell me
where is error
code---
class DBReader
{
static final File INDEX_DIR = new File("index");
public static void main(String args[])
{
try {
// The newInstance() call is a work
around for some
// broken Java implementations
Class.forName("com.mysql.jdbc.Driver").newInstance();
System.out.println("driver loaded
successfully");
} catch (Exception ex) {
System.out.println("DBError:"+ex);
}
try {
Connection conn =
DriverManager.getConnection("jdbc:mysql://localhost/experience?user=root&password=");
System.out.println("connection success");
// Do something with the Connection ....
Statement stmt = conn.createStatement();
String select_query = "SELECT
resume_name,years,months,details FROM info";
ResultSet rs =
stmt.executeQuery(select_query);
IndexWriter writer = new
IndexWriter(INDEX_DIR, new StandardAnalyzer(),
true);
while (rs.next()) {
String resume_name =
rs.getString("resume_name");
float years = rs.getFloat("years");
float months = rs.getFloat("months");
String details =
rs.getString("details");
//System.out.println(resume_name+"\t"+years+"\t"+months+"\t"+details);
//try {
//Thread.sleep(1000);
//}
//catch(InterruptedException e) {
// probably fine to ignore
this exception
//}
writer.setMaxFieldLength(25000);
final Document doc = new Document();
doc.add(new Field("resume_name",
resume_name, Store.YES, Index.UN_TOKENIZED));
doc.add(new Field("details", details,
Store.YES, Index.UN_TOKENIZED));
writer.addDocument(doc);
}
writer.optimize();
writer.close();
IndexReader reader =
IndexReader.open("index");
Searcher searcher = new
IndexSearcher(reader);
Analyzer analyzer = new
StandardAnalyzer();
BufferedReader in = new
BufferedReader(new InputStreamReader(System.in,
"UTF-8"));
String field = "contents";
QueryParser parser = new
QueryParser(field, analyzer);
while (true)
{
System.out.print("Query: ");
String line = in.readLine();
if (line == null ||
line.length() == -1)
break;
Query query = parser.parse(line);
System.out.println("Searching
for: " + query.toString(field));
Hits hits =
searcher.search(query);
System.out.println(hits.length() + " total matching
documents");
final int HITS_PER_PAGE = 10;
for (int start = 0; start <
hits.length(); start += HITS_PER_PAGE)
{
int end =
Math.min(hits.length(), start + HITS_PER_PAGE);
for (int i = start; i
< end; i++)
{
Document docs
= hits.doc(i);
String path =
docs.get("path");
if (path != null)
{
System.out.println((i+1) + ". " + path);
String
title = docs.get("title");
if
(title != null)
{
System.out.println(" Title: " + docs.get("title"));
}
}else{
System.out.println((i+1) + ". " + "No path for this
document");
}
}
if (hits.length() > end)
{
System.out.print("more (y/n) ? ");
line =
in.readLine();
if
(line.length() == 0 || line.charAt(0) == 'n')
break;
}
}//end of for(int start = 0;
start < hits.length(); start += HITS_PER_PAGE)
}//end of while(true)
} catch (SQLException ex) {
// handle any errors
System.out.println("SQLException: " +
ex.getMessage());
System.out.println("SQLState: " +
ex.getSQLState());
System.out.println("VendorError: " +
ex.getErrorCode());
}
catch(IOException ex)
{
}
catch(Exception e)
{
}
}
}
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