今日尝试了一下layui+ztree的权限更新，有部分内容不容易实现，现在已经解决，特此记录一下，以慰后来者。
一、资源准备。
资源链接：https://pan.baidu.com/s/1NtN3FYkW28K5rmeqd3rBrQ
提取码：w87p
css里面还有一个图标包，需要放在同一个根目录下。
二、layui引用
三、修改js
四、菜单效果展示
五、js代码
引用
授权代码
1 //菜单授权 2 function powerRole(data) { 3 layer.open({ 4 title: '角色权限分配', 5 btn: ['保存', '取消'], 6 content: '<ul id="roleAuthTree" class="ztree"></ul>', 7 success: function (layero, dIndex) { 8 var loadIndex = layer.load(2); 9 $.ajax({ 10 url: "../Role/GetRoleAuthListWithRoleId", 11 type: "get", 12 dataType: "json", 13 data: { RoleId: data.RoleId }, 14 success: function (res) { 15 layer.close(loadIndex); 16 if (res.code == 0) { 17 $.fn.zTree.init($('#roleAuthTree'), { 18 check: { 19 enable: true 20 }, 21 data: { 22 simpleData: { 23 enable: true 24 } 25 } 26 }, res.data); 27 } else { 28 layer.msg(res.msg, { icon: 2 }); 29 } 30 } 31 }); 32 // 超出一定高度滚动 33 $(layero).children('.layui-layer-content').css({ 34 'max-height': '300px', 35 'overflow': 'auto' 36 }); 37 }, 38 yes: function (dIndex) { 39 var insTree = $.fn.zTree.getZTreeObj('roleAuthTree'); 40 var checkedRows = insTree.getCheckedNodes(true); 41 var ids = []; 42 for (var i = 0; i < checkedRows.length; i++) { 43 ids.push(checkedRows[i].id); 44 } 45 var loadIndex = layer.load(2); 46 $.ajax({ 47 url: "../Role/SaveWithRoleId", 48 type: "get", 49 dataType: "json", 50 data: { roleId: data.RoleId, authIds: ids.join(',')}, 51 success: function (res) { 52 layer.close(loadIndex); 53 if (res.code === 0) { 54 layer.msg(res.msg, {icon: 1}); 55 layer.close(dIndex); 56 //刷新table。也可以考虑刷新页面缓存 57 reloadTable(); 58 } 59 else { 60 layer.msg(res.msg, { icon: 2 }); 61 } 62 } 63 }); 64 } 65 }); 66 }
六、后台代码
1 /// <summary> 2 /// 根据角色ID获取权限列表 3 /// </summary> 4 /// <param name="RoleId"></param> 5 /// <returns></returns> 6 public object GetListWithRoleId(string RoleId) 7 { 8 var MenuInfo = _context.Base_Menu.Where(t => t.DeleteMark == 0) 9 .Select(t => new { 10 name = t.name, 11 Checked = false, 12 pId = t.parentid, 13 id = t.id, 14 open = true 15 }) 16 .ToList(); 17 18 var RoleAuthInfo = _context.Base_RoleAuthority.Where(t => t.DeleteMark == 0 && t.RoleId == RoleId) 19 .Select(t => new { 20 t.id, 21 t.Checked 22 }) 23 .ToList(); 24 25 //左连接 26 var list = MenuInfo.GroupJoin(RoleAuthInfo, left => left.id, right => right.id, (left, right) => 27 new 28 { 29 name = left.name, 30 Checked = right.Where(o => o.id == left.id).ToList().Count > 0 ? right.Where(o => o.id == left.id).ToList()[0].Checked : false, 31 pId = left.pId, 32 id = left.id, 33 open = left.open, 34 }).ToList(); 35 36 return list; 37 } 38 39 /// <summary> 40 /// 保存角色权限 41 /// </summary> 42 /// <param name="roleId"></param> 43 /// <param name="authIds"></param> 44 /// <returns></returns> 45 public string SaveWithRoleId(string roleId, string authIds) 46 { 47 try 48 { 49 if (!string.IsNullOrEmpty(roleId)) 50 { 51 var RoleAuthInfo = _context.Base_RoleAuthority.Where(t => t.RoleId == roleId && t.DeleteMark == 0).ToList(); 52 53 //查询是否有数据 54 if (RoleAuthInfo.Count() > 0) 55 { 56 foreach (var item in RoleAuthInfo) 57 { 58 //追踪数据 59 var RoleAuthList = _context.Base_RoleAuthority.Single(t => t.AuthId == item.AuthId); 60 //删除旧的权限数据 61 _context.Base_RoleAuthority.Remove(item); 62 } 63 64 _context.SaveChanges(); 65 } 66 67 //新增新的权限数据 68 var Authlist = authIds.Split(','); 69 foreach (var item in Authlist) 70 { 71 var MenuInfo = _context.Base_Menu.Where(t => t.id == item && t.DeleteMark == 0).FirstOrDefault(); 72 if (MenuInfo != null) 73 { 74 var RoleAuthObj = new RoleAuthorityEntity(); 75 RoleAuthObj.Create(); 76 77 RoleAuthObj.RoleId = roleId; 78 RoleAuthObj.id = MenuInfo.id; 79 RoleAuthObj.Checked = true; 80 81 _context.Base_RoleAuthority.AddAsync(RoleAuthObj); 82 _context.SaveChanges(); 83 } 84 } 85 } 86 else 87 { 88 return "角色id未获取到！"; 89 } 90 91 return "true"; 92 } 93 catch (Exception ex) 94 { 95 return ex.ToString(); 96 throw ex; 97 } 98 }