ztree实现复选框单选功能

/**
 * ztree的默认配置项
 * */
var setting = {
    view: {
        selectedMulti: false //按住ctrl是否可以多选
    },
    check: {
        enable: true
        , chkStyle: 'checkbox'
    },
    data: {
        simpleData: {
            enable: true
        }
    },
    async: {
        enable: true
        ,type:"post"
        ,url:test.ztreeDftUrl
        ,dataFilter:function (treeId, parNode, jsonData) {
            return test.replaceIcon(treeId, jsonData);
        }
        ,otherParam:null
    },
    callback: {
        //禁止节点被选中
        beforeClick:function () {
            //禁止节点被选中
            var e =  e ||window.event;
            e.stopPropagation();
            return false;
        },
        onCheck:function (e, treeId, treeNode) {
            var treeObj = $.fn.zTree.getZTreeObj(treeId);
            var status = treeNode. checked;
            treeObj.checkAllNodes(false);
            treeObj.checkNode(treeNode, status, false);
        }
     }
}