jstree 树默认选中子节点

  相信很多人都在为无法默认选中树节点而苦恼，弄出来了特意分享出来

 public Object Menu(String roleId, HttpServletRequest req) {
        List<SysMenu> list = menuService.query(Cnd.orderBy().asc("location").asc("path"));
        List<SysMenu> datas = roleService.getDatas();
        List<NutMap> menus = new ArrayList<>();
        List<SysMenu> roleMenus = roleService.getMenusAndButtons(roleId);//当前角色的权限
        for (SysMenu menu : list) {
            NutMap map = new NutMap();
            for (SysMenu bt : datas) {
                if (menu.getPath().equals(bt.getPath().substring(0, bt.getPath().length() - 4))) {
                    menu.setHasChildren(true);
                    break;
                }
            }
            for(SysMenu rm:roleMenus){
                if (menu.getId().equals(rm.getId())){
                    map.put("state", new State(false,false,true));//是否允许编辑-是否展开-是否选中树节点
                    break;
                }
            }
            map.put("id", menu.getId());
            map.put("text", menu.getName());
            map.put("icon", Strings.sBlank(menu.getIcon()));
            map.put("parent", "".equals(Strings.sNull(menu.getParentId())) ? "#" : menu.getParentId());
            map.put("data", menu.getHref());
            menus.add(map);
        }
        req.setAttribute("menus", Json.toJson(menus));
        return Strings.isBlank(roleId) ? null : roleService.fetch(roleId);
    }

public class State {
    private boolean disabled;
    private boolean opened;
    private boolean selected;

    /**
     * 树节点勾选
     * @param disabled  编辑
     * @param opened  是否展开
     * @param selected  是否选中
     */
    public State(boolean disabled,boolean opened,boolean selected){
        this.disabled=disabled;
        this.opened=opened;
        this.selected=selected;

    }

    public boolean isDisabled() {
        return disabled;
    }

    public void setDisabled(boolean disabled) {
        this.disabled = disabled;
    }

    public boolean isOpened() {
        return opened;
    }

    public void setOpened(boolean opened) {
        this.opened = opened;
    }

    public boolean isSelected() {
        return selected;
    }

    public void setSelected(boolean selected) {
        this.selected = selected;
    }
}

<header class="header navbar bg-white shadow">
  
</header>
<div class="content-wrap">
    <div class="wrapper">
        <div class="row mb15">
            <div class="col-lg-12">
                <form id="addRoleForm" class="form-horizontal stepy" method="post" action="url">
                    <input type="hidden" id="menuIds" name="menuIds"/>
                    <div class="form-group no-b">
                        <div class="col-sm-8">
                            <div class="panel">
                                <div class="panel-heading no-b">
                                    <h5>选择<b>菜单</b></h5>
                                </div>
                                <div class="panel-body">
                                    <div id="jsTreeMenu"></div>
                                </div>
                            </div>
                        </div>
                        <div class="col-sm-4">
                            <div class="panel">
                                <div class="panel-heading no-b">
                                    <h5>菜单<b>描述</b></h5>
                                </div>
                                <div id="menuDescript" class="panel-body">
                                    <div class='alert alert-info'>请勾选每一个需要分配的菜单</div>
                                </div>
                            </div>
                        </div>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>
<script language="JavaScript">
    var jsTreeMenu;
    $(function () {
        jsTreeMenu = $("#jsTreeMenu").jstree({
                    plugins: ["wholerow", "checkbox"],
                    core: {
                        data: ${menus!}
                },
                checkbox: {
                    three_state: false,
                    cascade: 'down'
        }
    }).on("hover_node.jstree", function (e, data) {
        if (data.node.data)
            $("#menuDescript").text(data.node.data);
    }).on("dehover_node.jstree", function (e, data) {
        $("#menuDescript").html("<div class='alert alert-info'>请勾选每一个需要分配的菜单</div>");//清空菜单描述
    }).bind("loaded.jstree", function (e, data) {
        //立即加载树下所有节点

    });
    });
    function each(node, tree, nodes) {
        var p = tree.get_parent(node);
        if (p.length > 1) {
            if (nodes&&p&&nodes.indexOf(p)<0)
                nodes.push(p);
            each(p, tree, nodes);
        }
    }
    function complete() {
        var tree = $.jstree.reference("#jsTreeMenu");
        var ids = tree.get_selected();
        //查询所选节点的所有父节点
        for (var i = 0; i < ids.length; i++) {
            var node = ids[i];
            each(node, tree, ids);
        }
        if (ids.length > 0) {
            $.post("url", {menuIds: ids.toString(), roleid: '${obj.id}'}, function (data) {
            if (data.code == 0) {
                Toast.success(data.msg);
                setTimeout(function () {
                    $("#goback").trigger("click");
                }, 1000);
            } else {
                Toast.error(data.msg);
            }
        }, "json");
    } else {
        Toast.warning("请先选择菜单！");
    }
    }
</script>
<%}%>