wordqueryreacher.java

使用OSGi框架开发的分布式电子辞典

/*
 * @(#)WordQueryReacher.java
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Library General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
package cn.edu.ynu.sei.dict.web.data;

import cn.edu.ynu.sei.dict.core.exception.NotFoundWordException;
import cn.edu.ynu.sei.dict.core.service.IDictQueryService;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.osgi.framework.ServiceReference;

/**
 * Get the result of the request and pass it to AJAX code.
 * @author zy
 * @author 88250
 * @version 1.0.0.0, Mar 8, 2008
 */
public class WordQueryReacher extends HttpServlet {

    ServiceReference serviceReference;
    IDictQueryService wordReader;

    /**
     * Constructor with argument.
     * @param sr service reference
     */
    public WordQueryReacher(ServiceReference sr, IDictQueryService wordReader) {
        this.wordReader = wordReader;
        this.serviceReference = sr;
    }

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String input = request.getParameter("word");
        String choose = request.getParameter("choose");
        System.out.println("choose:"+choose);
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            System.out.println("before lookup");
            String wordTemp = wordReader.lookupSimilarList(input,choose);
            System.out.println("after lookup");
            String[] wordList = wordTemp.split("###");
            String outputStr = "";
            String stringTemp;
            for (int i = 0; i < wordList.length - 1; i++) {
                stringTemp = wordList[i];
                if(wordList[i].contains("'")){
                    wordList[i] = wordList[i].replace("'", "\\'");
                }
                outputStr += "<a href='#' onclick=\"getWord(" + "'" + wordList[i] + "'" + ",'dt','checklist')\">" + stringTemp + "</a>" + "<br>";
            }
            out.write(outputStr);
        } catch (NotFoundWordException ex) {
            Logger.getLogger(WordQueryReacher.class.getName()).log(Level.SEVERE, null, ex);
            out.write(ex.getMessage());
        } 
        return;
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet 鏂规硶銆傚崟鍑诲乏渚х殑 + 鍙蜂互缂栫級浠ｇ爜銆�>
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}