ztree+java异步加载树形菜单例子

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://"
            + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>







    href="<%=request.getContextPath()%>/css/zTreeStyle.css">






   

package com.henu.controller;
import java.io.PrintWriter;
import java.util.List;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.henu.model.Ztree;
import com.henu.service.ZtreeService;
@Controller
@RequestMapping("/ztree/")
public class ZtreeController {
    @Resource
    private ZtreeService ztreeService;
    
    @RequestMapping("page")
    public String page(){
        return "ztree/ztreeList";
    }
    
    @RequestMapping("welcome")
    public String welcome(){
        return "ztree/welcome";
    }
    
    @RequestMapping("list")
    public void list(HttpServletRequest request, HttpServletResponse response) throws Exception{
        String catalogIdParam = request.getParameter("catalogId");
        Long catalogId = null;
        if (catalogIdParam != null) {
            catalogId = Long.parseLong(catalogIdParam);
        }
        String catalogName = request.getParameter("catalogName");
        System.out.println(catalogId + "|" + catalogName + "|"); 
        List ztreeList = ztreeService.getZtree(catalogId); 
        PrintWriter out = response.getWriter();
        String str = JSONArray.fromObject(ztreeList).toString();
        System.out.println(str);
        out.print(str);
    }
}

package com.henu.service;
import java.util.List;
import com.henu.model.Ztree;
public interface ZtreeService {
    List getZtree(Long catalogId);
}

package com.henu.service.impl;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.henu.dao.ZtreeDAO;
import com.henu.model.Ztree;
import com.henu.service.ZtreeService;
@Service
public class ZtreeServiceImpl implements ZtreeService{
    @Resource
    private ZtreeDAO ztreeDAO;
    public List getZtree(Long catalogId) {
        return ztreeDAO.getZtree(catalogId);
    }
}

package com.henu.dao;
import java.util.List;
import javax.annotation.Resource;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.stereotype.Component;
import com.henu.model.Ztree;
@Component
public class ZtreeDAO {
    @Resource
    private SqlSessionTemplate sqlSessionTemplate;
    
    public List getZtree(Long catalogId) {
        List ztreeList = sqlSessionTemplate.selectList("com.henu.model.Ztree.getZtree",catalogId);
        return ztreeList;
    }
}