wuchenbd
wuchenbd
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回调函数没起作用！帮忙看一下！ var zTree1; var setting = { checkable: true, checkType: {"Y":"ps", "N":"ps"}, async: true, asyncUrl: getUrl, //asyncParam: ["name", "id"], asyncSuccess : zTreeOnAsyncSuccess, //isParent : false, expandSpeed : "", isSimpleData : true, treeNodeKey : "id", treeNodeParentKey : "pId", asyncError:zTreeOnAsyncError }; $(document).ready(function(){ zTree1 = $("#treeDemo").zTree(setting); zTree1.expandAll(false); }); function getUrl(treeNode){ var aurl = "${contextPath}/tollgatetree/getSynCheckboxTree.do?"; return aurl; } function zTreeOnAsyncSuccess(event, treeId, treeNode, msg) { alert(msg); } function zTreeOnAsyncError(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown) { alert(XMLHttpRequest); } 我用的异步加载，我想试验后台传到前台的数据是否能被自动解析成json格式 但是，运行后，树桩列表不显示，我就想用回调函数看一下状态， 如果成功加载：alert出 msg 如果失败：alert一些信息出来 可是不管是否成功，都不触发回调函数， 以下后台代码是演示出的数据，可以在页面中正常显示树，但是！asyncSuccess 回调函数没有被触发，怎么回事？不是成功了嘛？ java Demo代码 public void getSynCheckboxTree(){ PrintWriter out = null; String zNodesOne = "[{name:\"100个节点\", id:\"1\", count:1, times:1,isParent:true}," +"{name:\"500个节点\", id:\"2\", count:500, times:1,isParent:false}," + "{name:\"1000个节点\",id:\"3\", count:1000, times:1,isParent:true}]"; try { out = new PrintWriter(this.response.getWriter()); out.print(zNodesOne); out.flush(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } out.close(); }
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