第一节：剖析DB设计和业务接口的编写

一. DB设计

1. 说明

　框架的基础功能包括：用户管理、角色管理、登录日志、操作日志模块，1个角色可以配置多个权限，1个用户可以配置多个角色，相关表设计如下，大致思路：登录→根据userId拿到所有角色Id→获取所有角色Id对应的权限信息→对这些权限信息去重。

2.详细结构分享

(1). 用户表

 

(2). 角色表

 

(3). 菜单权限表

 

(4). 用户-角色关联表

 

(5). 角色-菜单权限关联表

 

(6). 操作日志表

 

(7). 登录日志表

 

二. 业务接口编写

1. 说明

    控制器按区域存放，路由匹配规则为：[Route("Api/[area]/[controller]/[action]")]，相关接口设计详见下面代码，在后续章节将结合EasyUI框架中的各种组件来分析接口业务。

2. 详细接口分享

(1). 主控制器- SysMainApiController

 [Area("AdminApi_Areas")]
    [Route("Api/[area]/[controller]/[action]")]
    [SkipLogin]
    public class SysMainApiController : Controller
    {
        public IBaseService _baseService;
        public IConfiguration _configuration;

        public SysMainApiController(IBaseService baseService, IConfiguration configuration)
        {
            this._baseService = baseService;
            this._configuration = configuration;
        }



        #region 01-校验登录
        /// <summary>
        /// 校验登录
        /// </summary>
        /// <param name="userAccount">账号</param>
        /// <param name="passWord">密码</param>
        /// <returns></returns>
        [SkipAll]
        public IActionResult CheckLogin(string userAccount, string passWord)
        {
            try
            {
                //1.校验账号是否存在
                var userInfor = _baseService.Entities<T_SysUser>().Where(u => u.userAccount == userAccount).FirstOrDefault();
                if (userInfor != null)
                {
                    //2. 账号和密码是否匹配
                    var passWord1 = SecurityHelp.SHA(passWord);
                    if (passWord1.Equals(userInfor.userPwd, StringComparison.InvariantCultureIgnoreCase))
                    {
                        //3. 产生token进行返回
                        //过期时间(可以不设置，下面表示签名后 12个小时过期)
                        double exp = (DateTime.UtcNow.AddHours(12) - new DateTime(1970, 1, 1)).TotalSeconds;
                        //进行组装
                        var payload = new Dictionary<string, object>
                        {
                             {"userId", userInfor.id },
                             {"userAccount", userInfor.userAccount },
                             {"exp",exp }
                         };
                        var token = JWTHelp.JWTJiaM(payload, _configuration["JWTSecret"]);
                        //4.记录登录日志
                        T_SysLoginLog sysLoginLog = new T_SysLoginLog()
                        {
                            id = Guid.NewGuid().ToString("N"),
                            userId = userInfor.id,
                            userAccount = userInfor.userAccount,
                            loginTime = DateTime.Now,
                            delFlag = 0,
                            loginIp = HttpContext.Connection.RemoteIpAddress.ToString()
                        };
                        _baseService.Add(sysLoginLog);

                        return Json(new { status = "ok", msg = "登录成功", data = token });
                    }
                    else
                    {
                        //密码不正确
                        return Json(new { status = "error", msg = "密码不正确", data = "" });
                    }
                }
                else
                {
                    return Json(new { status = "error", msg = "账号不存在", data = "" });
                };
            }
            catch (Exception ex)
            {
                LogUtils.Error(ex); ;
                return Json(new { status = "error", msg = "登录失败", data = "" });
            }

        }
        #endregion

        #region 02-获取左侧菜单权限结构(EasyUI版本)【已修改】
        /// <summary>
        /// 获取权限信息
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public async Task<string> GetEasyLeftMenu()
        {
            try
            {
                var jwtData = JsonHelp.ToObject<JwtData>(ControllerContext.RouteData.Values["auth"].ToString());
                var userId = jwtData.userId;

                //根据用户Id，查出来所有的角色，然后把所有角色对应的权限id查出来并去重
                var data1 = _baseService.Entities<T_SysUserRole>();
                var data2 = _baseService.Entities<T_SysRolePer>();
                var data = await (from a in data1
                                  join b in data2 on a.roleId equals b.roleId
                                  where a.userId == userId
                                  select b).Select(p => p.perId).Distinct().ToListAsync();

                //根据权限Id组装固定格式的权限信息进行反馈
                var perList = await _baseService.GetListByAsync<T_SysPermisson>(u => u.delFlag == 0 && data.Contains(u.id));

                List<EasyUiMenuInfor> menuList = GetOwnAllPer(perList, "1");
                return JsonHelp.ToJsonString(menuList);
            }
            catch (Exception ex)
            {
                LogUtils.Error(ex);
                return "";
            }
        }


        /// <summary>
        /// 获取所有自己的菜单信息
        /// </summary>
        /// <param name="perList">所有的自己的菜单权限</param>
        /// <param name="parentId">父菜单id</param>
        /// <returns></returns>
        public List<EasyUiMenuInfor> GetOwnAllPer(List<T_SysPermisson> perList, string parentId)
        {
            var perListMain = perList.Where(p => p.parentId == parentId).OrderBy(u => u.sortFlag).ToList();
            if (perListMain.Count() > 0)
            {
                //最新的组装形式
                List<EasyUiMenuInfor> menuList = new List<EasyUiMenuInfor>();
                foreach (var item in perListMain)
                {
                    EasyUiMenuInfor menuItem = new EasyUiMenuInfor();
                    menuItem.id = item.id;
                    menuItem.text = item.menuName;
                    var myUrl = item.frontUrl;
                    menuItem.attributes = myUrl;
                    menuItem.iconCls = item.iconClassName;
                    menuItem.children = GetChildPer(perList, item.id);
                    menuItem.state = menuItem.children.Count() == 0 ? "open" : "closed";
                    menuList.Add(menuItem);
                }
                return menuList;
            }
            else
            {
                return new List<EasyUiMenuInfor>();  //返回空集合
            }
        }


        /// <summary>
        /// 获取所有的子菜单权限
        /// </summary>
        /// <param name="perList"></param>
        /// <param name="childId"></param>
        /// <returns></returns>
        public List<EasyUiMenuInfor> GetChildPer(List<T_SysPermisson> perList, string childId)
        {
            var perListMain = perList.Where(p => p.parentId == childId).OrderBy(u => u.sortFlag).ToList();
            if (perListMain.Count() > 0)
            {
                return GetOwnAllPer(perList, childId);
            }
            else
            {
                return new List<EasyUiMenuInfor>();  //返回空集合
            }
        }

        #endregion




    }

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