searchcontroller.java

java写的blog

/*
 * Created on 2004-11-1
 * Author: Xuefeng, Copyright (C) 2004, Xuefeng.
 */
package org.crystalblog.web;

import javax.servlet.http.*;

import org.crystalblog.logic.Facade;
import org.crystalblog.search.SearchResult;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

/**
 * TODO Description here...
 * 
 * @author Xuefeng
 */
public class SearchController implements Controller {

    private SkinManager skin;
    private Facade facade;

    public void setSkinManager(SkinManager skin) { this.skin = skin; }
    public void setFacade(Facade facade) { this.facade = facade; }

    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
        String q = request.getParameter("q");
        int num = 20;
        int page = 1;
        String s_num = request.getParameter("num");
        if(s_num!=null) {
            num = Integer.parseInt(s_num);
            num = ensure(num, 10, 50);
        }
        String s_page = request.getParameter("page");
        if(s_page!=null) {
            page = Integer.parseInt(s_page);
            page = ensure(page, 1, 1000);
        }
        SearchResult result = facade.searchArticle(q, num, page);
        return new ModelAndView("/search_result.html", "result", result);
    }

    private int ensure(int value, int min, int max) {
        if(value<min) return min;
        if(value>max) return max;
        return value;
    }
}