catcontroller.java

sping下勇Xdoclet开发hibernate的程序实例,版本hibernate2.0,开发工具eclipse3.0

package org.ggyy.web.ctrl;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.ggyy.bo.Cat;
import org.ggyy.dao.ICatDao;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;
import org.springframework.web.servlet.view.RedirectView;


/**
 * Multi_Action Controller 的例子,每一个xxxAction都是如下声明：
 * xxxActionHandler,它类似于一个servlet(因为有request,response嘛).
 * @author jiangyubao
 *
 */
/**
 * @spring.bean id="catController"
 * @spring.property name="catDao" ref="catDao"
 * @spring.property name="methodNameResolver" ref="catControllerMethodNameResolver"
 */
public class CatController extends MultiActionController {
    private ICatDao catDao;
    public ModelAndView listCatHandler(HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        String parentCatId = request.getParameter("parentId");
        List children=null;
        Cat parent=null;
        if (parentCatId != null && parentCatId.equals("") == false) {
            children= this.getCatDao().findDirectChildren(parentCatId);
            parent=(Cat) this.getCatDao().load(parentCatId);
        } else{
            children=this.getCatDao().findRootCats();
        }
        Map model=new HashMap();
        model.put("children",children);
        model.put("parent",parent);
        return new ModelAndView("listCat.jsp", "model", model);
    }
    public ModelAndView deleteCatHandler(HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        String catId = request.getParameter("catId");
        Cat cat=(Cat) this.getCatDao().load(catId);
        this.getCatDao().delete(cat);
        String parentId=cat.getParent()!=null?cat.getParent().getId()+"":"";
    	return new ModelAndView(new RedirectView("listCat.sf"),"parentId",parentId);
    }


    public ICatDao getCatDao() {
        return catDao;
    }

    public void setCatDao(ICatDao catDao) {
        this.catDao = catDao;
    }
}