searchcontroller.java

基于lucene的搜索引

package sample.dw.paper.lucene.servlet;

import java.io.IOException;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import sample.dw.paper.lucene.search.SearchManager;

/**
 * This servlet is used to deal with the search request
 * and return the search results to the client
 */

public class SearchController extends HttpServlet{
    
	private static final long serialVersionUID = 1L;
public static String toChinese(String strvalue)
 {
  try{
   if(strvalue==null)
    return null;
   else
   {
     strvalue = new String(strvalue.getBytes("ISO8859_1"), "UTF-8");
     return strvalue;
   }
  }catch(Exception e){
   return null;
  }
 } 

	public void doPost(HttpServletRequest request, HttpServletResponse response)
                      throws IOException, ServletException{
    	String searchWord = toChinese(request.getParameter("searchWord"));
    	SearchManager searchManager = new SearchManager(searchWord);
    	List searchResult = null;
    	searchResult = searchManager.search();
    	RequestDispatcher dispatcher = request.getRequestDispatcher("search.jsp");
    	request.setAttribute("searchResult",searchResult);
    	dispatcher.forward(request, response);
    }
    
    public void doGet(HttpServletRequest request, HttpServletResponse response)
                     throws IOException, ServletException{
        doPost(request, response);
    }   


}