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1.下载ztree-2.6
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<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ taglib uri="/WEB-INF/pages/tlds/c.tld" prefix="c" %>
<%@ taglib uri="/WEB-INF/pages/tlds/fmt.tld" prefix="fmt" %>
<%@ taglib uri="/WEB-INF/pages/tlds/ecside.tld" prefix="ec" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<title>indexPage</title>
<meta http-equiv="pragma" content="no-cache"/>
<meta http-equiv="cache-control" content="no-cache"/>
<meta http-equiv="expires" content="0"/>
<link rel="stylesheet" href="${pageContext.request.contextPath}/css/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery.ztree-2.6.js"></script>
<script type="text/javascript">
<!--
var tree1;
var zNodes =[];
var setting;
setting = {
checkable: true,
async: true,
asyncUrl:"${pageContext.request.contextPath}/Test/wB2.action",
asyncParam: ["id"], // 异步加载时 需要 传递的参数
nameCol:"name", //列名称
isSimpleData: true,//简单数据模型，必须提供 treeNodeKey 和 treeNodeParentKey
treeNodeKey:"id",
treeNodeParentKey:"parentId",
callback:{
// beforeAsync: zTreeBeforeAsync, // 异步加载事件之前得到相应信息
asyncSuccess: zTreeOnAsyncSuccess,//异步加载成功的fun
asyncError: zTreeOnAsyncError //加载错误的fun
}
};
$(document).ready(function(){
refreshTree();
});
function zTreeOnAsyncSuccess(event, treeId, treeNode, msg){
}
function zTreeOnAsyncError(event, treeId, treeNode){
alert("异步加载失败!");
}
function refreshTree() {
tree1 = $("#tree1").zTree(setting, zNodes);
}
//-->
</script>
</head>
<body>
<a href="${pageContext.request.contextPath}/Test/wB1.action">Bean1</a>
<TABLE border=0 width="700" class="tb1">
<TR>
<TD width=340px align=center valign=top>
<div class="zTreeDemoBackground">
<ul id="tree1" class="tree"></ul>
</div>
</TD>
</TR>
</TABLE>
</body>
</html>
??2. 后台实现action
Long nodeId=0;
if(id != null ){
nodeId = Long.parseLong(id);
}
String syString = resService.getChildNode1(longId);
String syString = resService.getChildNode1(longId);
System.out.println(syString);
getResponse().setContentType("text/json;charset=UTF-8");
try {
getResponse().getWriter().write(syString);
} catch (IOException e) {
e.printStackTrace();
}
return null;
public String getChildNode1(Long rootRes){
StringBuilder sBuilder = new StringBuilder();
if (rootRes == 0) {
sBuilder.append("[");
SysResource rootNode = resDao.queryRootRes();
sBuilder.append("{");
sBuilder.append("id: \"");
sBuilder.append(rootNode.getId());
sBuilder.append("\",");
sBuilder.append("name: \"");
sBuilder.append(rootNode.getResName());
sBuilder.append("\",");
sBuilder.append("isParent:");
sBuilder.append(getChildNode(rootNode.getId()).size() == 0 ? "false": "true");
sBuilder.append("}");
sBuilder.append("]");
}else {
int len = getChildNode(rootRes).size();
sBuilder.append("[");
for (int i = 0; i < len; i++) {
sBuilder.append("{");
sBuilder.append("id: \"");
sBuilder.append(getChildNode(rootRes).get(i).getId());
sBuilder.append("\",");
sBuilder.append("name: \"");
sBuilder.append(getChildNode(rootRes).get(i).getResName());
sBuilder.append("\",");
sBuilder.append("isParent:");
sBuilder.append(getChildNode(getChildNode(rootRes).get(i).getId()).size() > 0 ? true : false);
if (i!= (len-1)) {
sBuilder.append("}");
sBuilder.append(",");
}
}
sBuilder.append("}");
sBuilder.append("]");
}
return sBuilder.toString();
}
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请求结果1:[{id: "1",name: "物流管理系统",isParent:true}]
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请求结果2:[{id: "2",name: "基本信息",isParent:false},{id: "5",name: "资源管理",isParent:true},{id: "4",name: "出库管理",isParent:false},{id: "3",name: "入库管理",isParent:false}]
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