效果图：
代码：
<!DOCTYPE html> <HTML> <HEAD> <TITLE> ZTREE DEMO - big data page</TITLE> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" href="../../../css/demo.css" type="text/css"> <link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css"> <script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script> <script type="text/javascript" src="../../../js/jquery.ztree.core.js"></script> <script type="text/javascript" src="../../../js/jquery.ztree.excheck.js"></script> <script type="text/javascript" src="../../../js/jquery.ztree.exedit.js"></script> <SCRIPT type="text/javascript"> <!-- var setting = { async: { enable: true, url: getUrl }, check: { enable: true }, data: { simpleData: { enable: true } }, view: { addDiyDom: addDiyDom }, callback: { beforeExpand: beforeExpand, onAsyncSuccess: onAsyncSuccess, onAsyncError: onAsyncError } }; var zNodes =[ {name:"分页测试", t:"请点击分页按钮", id:"1", count:2000, page:0, pageSize:100, isParent:true} ]; var curPage = 0; function getUrl(treeId, treeNode) { var param = "id="+ treeNode.id +"_"+treeNode.page +"&count="+treeNode.pageSize, aObj = $("#" + treeNode.tId + "_a"); aObj.attr("title", "当前第 " + treeNode.page + " 页 / 共 " + treeNode.maxPage + " 页") return "../asyncData/getNodesForBigData.php?" + param; } function goPage(treeNode, page) { treeNode.page = page; if (treeNode.page<1) treeNode.page = 1; if (treeNode.page>treeNode.maxPage) treeNode.page = treeNode.maxPage; if (curPage == treeNode.page) return; curPage = treeNode.page; var zTree = $.fn.zTree.getZTreeObj("treeDemo"); zTree.reAsyncChildNodes(treeNode, "refresh"); } function beforeExpand(treeId, treeNode) { if (treeNode.page == 0) treeNode.page = 1; return !treeNode.isAjaxing; } function onAsyncSuccess(event, treeId, treeNode, msg) { } function onAsyncError(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown) { var zTree = $.fn.zTree.getZTreeObj("treeDemo"); alert("异步获取数据出现异常。"); treeNode.icon = ""; zTree.updateNode(treeNode); } function addDiyDom(treeId, treeNode) { if (treeNode.level>0) return; var aObj = $("#" + treeNode.tId + "_a"); if ($("#addBtn_"+treeNode.id).length>0) return; var addStr = "<span class='button lastPage' id='lastBtn_" + treeNode.id + "' title='last page' onfocus='this.blur();'></span><span class='button nextPage' id='nextBtn_" + treeNode.id + "' title='next page' onfocus='this.blur();'></span><span class='button prevPage' id='prevBtn_" + treeNode.id + "' title='prev page' onfocus='this.blur();'></span><span class='button firstPage' id='firstBtn_" + treeNode.id + "' title='first page' onfocus='this.blur();'></span>"; aObj.after(addStr); var first = $("#firstBtn_"+treeNode.id); var prev = $("#prevBtn_"+treeNode.id); var next = $("#nextBtn_"+treeNode.id); var last = $("#lastBtn_"+treeNode.id); treeNode.maxPage = Math.round(treeNode.count/treeNode.pageSize - .5) + (treeNode.count%treeNode.pageSize == 0 ? 0:1); first.bind("click", function(){ if (!treeNode.isAjaxing) { goPage(treeNode, 1); } }); last.bind("click", function(){ if (!treeNode.isAjaxing) { goPage(treeNode, treeNode.maxPage); } }); prev.bind("click", function(){ if (!treeNode.isAjaxing) { goPage(treeNode, treeNode.page-1); } }); next.bind("click", function(){ if (!treeNode.isAjaxing) { goPage(treeNode, treeNode.page+1); } }); }; $(document).ready(function(){ $.fn.zTree.init($("#treeDemo"), setting, zNodes); }); //--> </SCRIPT> <style type="text/css"> .ztree li span.button.firstPage {float:right; margin-left:2px; margin-right: 0; background-position:-144px -16px; vertical-align:top; *vertical-align:middle} .ztree li span.button.prevPage {float:right; margin-left:2px; margin-right: 0; background-position:-144px -48px; vertical-align:top; *vertical-align:middle} .ztree li span.button.nextPage {float:right; margin-left:2px; margin-right: 0; background-position:-144px -64px; vertical-align:top; *vertical-align:middle} .ztree li span.button.lastPage {float:right; margin-left:2px; margin-right: 0; background-position:-144px -32px; vertical-align:top; *vertical-align:middle} </style> </HEAD> <BODY> <h1>分页加载大数据量</h1> <h6>[ 文件路径: bigdata/page.html ]</h6> <div class="content_wrap"> <div class="zTreeDemoBackground left"> <ul id="treeDemo" class="ztree"></ul> </div> <div class="right"> <ul class="info"> <li class="title"><h2>1、大数据量加载说明</h2> <ul class="list"> <li>1)、分页方案可以有效解决某一级节点数据超大的情况。</li> <li>2)、分页按钮通过自定义控件的方法实现。</li> <li class="highlight_red">3)、分页方案对于 checkbox 的关联关系无能为力，只能每次翻页后进行修正。由于时间关系，Demo 中不对 checkbox 的关联进行任何修正处理。</li> <li class="highlight_red">4)、分页方案中，从 zTree 得到的节点数据只有当前页的节点数据，可以在每次翻页后自行保存每页的数据，作为缓存，具体情况要根据实际需求来决定。</li> </li> <li class="title"><h2>2、setting 配置信息说明</h2> <ul class="list"> <li>需要设置 setting.async 异步加载部分的参数</li> <li>其他不需要进行特殊的配置，根据自己的需求自行设置</li> </ul> </li> <li class="title"><h2>3、treeNode 节点数据说明</h2> <ul class="list"> <li>对 节点数据 没有特殊要求，用户可以根据自己的需求添加自定义属性</li> </ul> </li> </ul> </div> </div> </BODY> </HTML>
