ztree gets json through ajax and checks checkbook

This article mainly introduces ztree to obtain json through ajax and check the checkbook. It has a certain reference value. Now I share it with everyone. Friends in need can refer to it.

In response to the request of superiors, the project If you want to use ztree for the tree list, just follow the command.

Configuration

 var zTree;
    var setting = {
        view: {
            dblClickExpand: false,  //双击节点时，是否自动展开父节点的标识
            showLine: true,         //设置ztree是否显示节点之间的连线
            selectedMulti: false,   //设置是否允许同时选中多个节点
        },
        check: {
            enable: true            //设置ztree的节点是否显示checkbox/radio
        },
        data: {
            simpleData: {
                enable:true,        //是否使用简单数据模式
                idKey: "id",        //节点数据中保存唯一标识的属性名称
                pIdKey: "p_id",     //节点数据中保存其父节点唯一标识的属性名称
                rootPId: ""         //用于修正根节点父节点的数据，即pIdKey指定的属性值
            }
        },
        callback: {
            onClick:function (e,treeId,treeNode,clickFlag) {     //用于捕捉勾选时触发
                zTree.checkNode(treeNode,!treeNode.checked,true);//勾选或取消勾选单个节点
            }
        }
    };

ajax

 var zNodes ;
    var select;
    var selectarry=[];   //要勾选的id
    var allnodes;
    var t = $("#tree");
    $.ajax({
        type: "POST",
        url: "...",//请求的后台地址
        data: "name=John&location=Bpston",//前台传给后台的参数
        dataType:"json",
        ansync:false,
        ContentType: "application/json; charset=utf-8",
        success: function(msg){         //msg:返回值
            // alert( msg.data );
            zNodes=msg.data.list;
            zNodes=eval(zNodes);
            //zNodes=JSON.stringify(zNodes);
            //console.log(zNodes);
            //alert(zNodes)
            t = $.fn.zTree.init(t, setting, zNodes);
            var zTree2 = $.fn.zTree.getZTreeObj("tree");
            selectarry=msg.data.nodes.split(",");
            allnodes=zTree2.getNodes();
            for(select=1;select<selectarry.length><h3 id="ps">ps: </h3>
<p>Attached are methods to expand, collapse, check, and cancel all nodes</p>
<pre class="brush:php;toolbar:false">//展开和折叠
    $("#ztreeExpandAll").click(function () {
        $.fn.zTree.getZTreeObj("tree").expandAll(true);
    });
    $("#ztreeUnExpandAll").click(function () {
        $.fn.zTree.getZTreeObj("tree").expandAll(false);
    });

    //勾选全部或取消全部
        var clicknumber=1;

        $("#checkall_deafult").click(function () {
            if(clicknumber%2>0) {
                // var treeObj = $.fn.zTree.getZTreeObj("tree");
                zTree.checkAllNodes(true);
            }
            else {
                // var treeObj = $.fn.zTree.getZTreeObj("tree");
                zTree.checkAllNodes(false);
            }
            clicknumber++;
        });

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