contextlistener.java~19~

全文搜索源码,基于开源项目Lucene编写,开发语言为JAVA,本程序做为LUCENE的示例DEMO

package com.ht.gis.service;

import javax.servlet.*;
import javax.servlet.http.*;
import com.ht.gis.dispatch.*;
import com.ht.gis.search.*;

public class ContextListener extends HttpServlet implements ServletContextListener, ServletContextAttributeListener {
  private static Log log = LogFactory.getLog("WebGIS");
  private ServletContext servContext;

  public void contextInitialized(ServletContextEvent sce){
  try{
    servContext = sce.getServletContext();
    log.debug("应用程序数据初始化...");
    //=========== 保存到应用上下文 =================

    //=========== 协议分配模块初始化 ======================
    log.debug("协议分配模块初始化...");
    Dispatch dispatch = new Dispatch();
    Searcher searcher = new Searcher();
    Indexer indexer = new Indexer();
    servContext.setAttribute("Dispatch",dispatch);
    servContext.setAttribute("Searcher",searcher);
    servContext.setAttribute("Indexer",indexer);
    dispatch.regType("T002",searcher,"search");//处理搜索请求协议
    indexer.setIndex();
  }catch(Exception e){log.error(e);}
  }

  public void contextDestroyed(ServletContextEvent sce) {
  }
  public void attributeAdded(ServletContextAttributeEvent scab) {
  }
  public void attributeRemoved(ServletContextAttributeEvent scab) {
  }
  public void attributeReplaced(ServletContextAttributeEvent scab) {
  }
}