www.pudn.com > lucene+mysql+eclipe.rar > SearcherAction.java

/* 
 * Generated by MyEclipse Struts 
 * Template path: templates/java/JavaClass.vtl 
 */ 
package com.struts.action; 
 
import java.io.UnsupportedEncodingException; 
import java.util.Date; 
import java.util.HashMap; 
import java.util.List; 
import java.util.Map; 
 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import org.apache.struts.action.Action; 
import org.apache.struts.action.ActionForm; 
import org.apache.struts.action.ActionForward; 
import org.apache.struts.action.ActionMapping; 
 
import sun.security.provider.MD5; 
 
import com.struts.form.SearcherForm; 
import com.lucene.*; 
import javax.security.*; 
 
public class SearcherAction extends Action { 
 
	private final static int PageIndex = 3; // 每页的显示的搜索结果条数 
	private int startIndex = 0; 
	private int endIndex = 1; 
 
	public ActionForward execute(ActionMapping mapping, ActionForm form, 
			HttpServletRequest request, HttpServletResponse response) { 
		 
 
		String key;//传入lucene的关键字 
		int pageNo = 1;//第几页 
		if(request.getParameter("pageNo")!=null){ 
			pageNo = Integer.parseInt(request.getParameter("pageNo"));			 
		} 
		 
		String _key =  request.getParameter("key"); 
		SearcherForm searcherForm = (SearcherForm) form; 
		System.out.println(searcherForm.getSort()); 
		if (_key != "" && _key != null && pageNo > 1) {//如果不是第一页 
			int _pageNo = Integer.valueOf(pageNo); 
			startIndex = PageIndex * (_pageNo-1); 
			endIndex = PageIndex * _pageNo -1; 
			key = _key; 
			System.out.println("11111111111" ); 
			 
		}else if(_key != "" && _key != null && pageNo == 1){ //如果是第一页 
			startIndex = 0; 
			endIndex = 2; 
			key = _key; 
			System.out.println("11111112" ); 
		}else{//不是翻页搜索 
			startIndex = 0; 
			endIndex = 2; 
			key = searcherForm.getSearch(); 
			System.out.println("11111113" ); 
		} 
		 
		System.out.println("11111112" +key); 
		// 如果为空 
		if (key == null || key.equals("")) { 
			return mapping.findForward("success"); 
		} 
		String[] q = { key, "查询条件2", "查询条件3", "查询条件3" }; 
		try { 
			long start = new Date().getTime(); 
			List lst = TestSearch.lucene(q, startIndex, endIndex); 
			long end = new Date().getTime(); 
			System.out.println("花费时间：" + (double) (end - start) / 1000 + "秒"); 
 
			Map map = new HashMap(); 
			for (int i = 0; i < lst.size(); i++) { 
				Product pt = Product.queryProductbyId((long) Integer 
						.parseInt(lst.get(i).toString())); 
				String[] str = { "商品名称：" + pt.getTitle(), 
						"，商品描述：" + pt.getDescription(), 
						"，所有者：" + pt.getUserName(), 
						"，标签：" + pt.getTag() + pt.getUserName(), 
						"，发布时间：" + pt.getDate() }; 
				map.put(i, str); 
			} 
			if (lst.isEmpty()) { 
				System.out.println("lst为null"); 
			} 
			int HitsLength = SearcherFile.getHitsLength(); 
			int MaxPage = HitsLength / this.PageIndex; 
			System.out.println("搜索"+HitsLength+"返回的总长度"+MaxPage); 
			StringBuffer sb = new StringBuffer(); 
			for (int j = 0; j <= MaxPage; j++) { 
				sb.append("[" 
						+ String.valueOf(j + 1) + "] "); 
				// _map.put(j, str); 
			} 
			request.setAttribute("page", sb.toString()); 
			request.setAttribute("photo", map); 
 
		} catch (Exception e) { 
			e.printStackTrace(); 
		} 
		return mapping.findForward("success"); 
	} 
	 
}