jquery-easyui-tree 实现异步加载树
<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags"%><% String path=request.getContextPath(); %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>产品树</title><link type="text/css" rel="stylesheet" href="<%=path%>/css/easyui/themes/default/easyui.css"><link type="text/css" rel="stylesheet" href="<%=path%>/css/easyui/themes/icon.css"><script type="text/javascript" src="<%=path%>/css/easyui/jquery-1.3.2.min.js"></script><script type="text/javascript" src="<%=path%>/css/easyui/jquery.easyui.min.js"></script><script type="text/javascript"> $(function(){ $('#tt').tree({ url: '<%=path%>/meta/productCodeTree.action' }); }); </script></head><body><ul id="tt"></ul></body></html>
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?服务端代码，用了struts2,通过json方式返回（注意，客户端会默认将节点id传给服务端，所以树节点都必须带id属性）：
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public void productCodeTree(){try {ProductCodeExample pce = new ProductCodeExample();pce.setOrderByClause(" product_py ");if(!StringUtil.isNullOrEmpty(id)){pce.createCriteria().andParentCodeEqualTo(id);}else{pce.createCriteria().andParentCodeIsNull();}List<ProductCode> pcList = this.productCodeDao.selectByExample(pce);List<Map<String,Object>> items = new ArrayList<Map<String,Object>>();for(ProductCode pc:pcList){Map<String,Object> item = new HashMap<String,Object>();item.put("id", pc.getProductCode());item.put("text", pc.getProductName());pce.clear();pce.createCriteria().andParentCodeEqualTo(pc.getProductCode());if(productCodeDao.countByExample(pce)>0)item.put("state", "closed");items.add(item);}JSONArray json = JSONArray.fromObject(items);HttpServletResponse response = ServletActionContext.getResponse();response.setContentType("application/json;charset=UTF-8");response.setCharacterEncoding("utf-8");response.setHeader("Charset", "utf-8");response.setHeader("Cache-Control", "no-cache");response.getWriter().println(json.toString());} catch (IOException e) {e.printStackTrace();}}? 1 楼 a380725424 2011-06-08 哥们 有木有可运行的例子 thankds 2 楼 a380725424 2011-06-08 哥们你的技术太牛逼了 我的邮箱是zhangzh@freadi.com 收到速回 3 楼 java麦克斯泰 2012-01-04 给的例子 都是不出来的 你又何必 写他呢 你想自己看 就设置私有的