讨论贴：页面基类，思路不是很好没有完成，请批评指导

木头

[C#] 纯文本查看 复制代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Security;
using System.Web.UI.WebControls;
using DevExpress.Web.ASPxGridView;
using OIFrameWork.Common;
using OIFrameWork.Entity;
using OIFrameWork.Web.Properties;
using UserPermission = OIFrameWork.BLL.UserPermission;

namespace OIFrameWork.Web.PageBase
{
    public class OiPageBase : System.Web.UI.Page
    {
        #region "页面需要调用的一些变量信息"

        protected Int32 ControlCodes = 0;

        /// <summary>
        /// 标识页面的唯一标识编码
        /// </summary>
        protected String PageCode = String.Empty;

        /// <summary>
        /// 标识当前页面所属的Application组的标识编码
        /// </summary>
        protected String ApplicationCode = String.Empty;

        /// <summary>
        /// 标识当前页面所属模块的ModuleCode编码
        /// </summary>
        protected String ModuleCode = String.Empty;

        /// <summary>
        /// 当前用户的登录票据
        /// </summary>
        protected FormsAuthenticationTicket AuthTicket;

        /// <summary>
        /// 系统的系统名称
        /// </summary>
        static readonly String SystemName = SystemConfigValue.GetInstance().SystemFrameWorkName;
        #endregion

        #region "页面的重写方法"
        /// <summary>
        /// 页面初始化执行的方法,主要是判断用户是否经过了验证，如果没有经过验证强制踢出
        /// </summary>
        /// <param name="e"></param>
        protected override void OnPreInit(EventArgs e)
        {
            //验证用户是否经过的服务器验证
            //--用户操作页面，每个页面都要去验证下登录票据是否已经过期，是否经过验证，保证用户有权限来操作这个页面
            //--通过Request.IsAuthenticated方法可以获取是否进行了验证请求
            if (!Request.IsAuthenticated)
            {
                //没有验证的话，执行跳转，跳转前，清空登录票据
                RedirectUrl();
            }

            try
            {
                //判断是否已经对类变量进行了赋值，如果没有赋值就进行赋值操作
                if (AuthTicket == null)
                {
                    //获取存储的Cookies
                    var httpCookie = Context.Request.Cookies[FormsAuthentication.FormsCookieName];
                    if (httpCookie != null)
                    {
                        //对类变量AuthTicket进行赋值操作
                        AuthTicket = FormsAuthentication.Decrypt(httpCookie.Value);
                        //设置页面的Title
                        Title = SystemName;
                    }
                    else
                    {
                        //如果httpCookie为空，说明没有登录票据，退出系统
                        RedirectUrl();
                        return;
                    }
                }

                //对AuthTicket赋值后，如果还为空，那么就退出系统
                if (AuthTicket == null)
                {
                    RedirectUrl();
                    return;
                }
                
                //验证用户的权限
                //1-首先验证登录用户的页面权限
                var userPermission = DataCache.GetInstance().GetCache("Permission_" + AuthTicket.Name);
                var lst = (List<UserPermission>)userPermission;
                var flage = AuthTicket.UserData == "superadmin" || CheckUserPagePermission(lst);
                
                //对访问的页面没有在用户权限页面中，退出用户
                if (!flage)
                {
                    RedirectUrl();
                    return;
                }

                //开始验证权限
            }
            catch
            {
                RedirectUrl();
            }
            base.OnInit(e);
        }

        /// <summary>
        /// 验证用户的页面权限
        /// </summary>
        /// <param name="lstList">用户权限集合</param>
        /// <returns>返回是否具有页面权限</returns>
        protected bool CheckUserPagePermission(List<UserPermission> lstList)
        {
            foreach (var permission in lstList.Where(permission => permission.PermissionEntity.PageCode == PageCode))
            {
                ControlCodes = Convert.ToInt32(permission.PermissionEntity.ControlCode);
                return true;
            }
            return false;
        }

        /// <summary>
        /// 初始化GridView的分页属性
        /// </summary>
        /// <param name="aspxGridView"></param>
        protected void InitGridViewPagerSettings(ASPxGridView aspxGridView)
        {
            aspxGridView.SettingsPager.PageSizeItemSettings.Visible = true;
            aspxGridView.SettingsPager.NextPageButton.Text = Resources.OiPageBase_InitGridViewPagerSettings_NewsPageButton;
            aspxGridView.SettingsPager.PrevPageButton.Text = Resources.OiPageBase_InitGridViewPagerSettings_PrevpageButton;
            aspxGridView.SettingsPager.LastPageButton.Text = Resources.OiPageBase_InitGridViewPagerSettings_LastPageButton;
            aspxGridView.SettingsPager.FirstPageButton.Text = Resources.OiPageBase_InitGridViewPagerSettings_FirstPageButton;
            aspxGridView.SettingsPager.Summary.Text = Resources.OiPageBase_InitGridViewPagerSettings_SummaryText;
            aspxGridView.SettingsPager.PageSizeItemSettings.Caption = Resources.OiPageBase_InitGridViewPagerSettings_Caption;
            aspxGridView.PageSizeChanged += aspxGridView_PageSizeChanged;
        }

        /// <summary>
        /// 当前页显示条数变化时候的方法，此方法需要到引用类中实现
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public virtual void aspxGridView_PageSizeChanged(object sender, EventArgs e)
        {
           //需要到派生类中重写此方法
        }

        /// <summary>
        /// 验证用户的页面操作权限
        /// </summary>
        /// <param name="aspxGridView">ASPxGridView</param>
        protected void CheckUserOpratePermission(ASPxGridView aspxGridView)
        {
            if (!BLL.CheckPower.GetInstance().CheckUserPermission(ControlCodes, 1))
            {
                //查看的用户权限,没有就隐藏AspxGridView
                aspxGridView.Visible = false;
            }
            else
            {
                //新增的用户权限，没有就要屏蔽添加按钮的功能
                for (var i = 0; i < aspxGridView.Columns.Count; i++)
                {
                    if (aspxGridView.Columns[i].GetType().Name != "GridViewCommandColumn") continue;

                    var column = ((GridViewCommandColumn) aspxGridView.Columns[i]);
                    if (BLL.CheckPower.GetInstance().CheckUserPermission(ControlCodes, 2))
                    {
                        column.ShowNewButton = true;
                    }
                    if (BLL.CheckPower.GetInstance().CheckUserPermission(ControlCodes, 3))
                    {
                        column.ShowEditButton = true;
                    }
                    if (BLL.CheckPower.GetInstance().CheckUserPermission(ControlCodes, 4))
                    {
                        column.ShowDeleteButton = true;
                    }

                    if (column.ShowNewButton == false && column.ShowEditButton == false &&
                        column.ShowDeleteButton == false)
                    {
                        column.Visible = false;
                    }

                }

                if (BLL.CheckPower.GetInstance().CheckUserPermission(ControlCodes, 5))
                {
                    aspxGridView.SettingsBehavior.AllowSort = true;
                }
            }

           
        }

        /// <summary>
        /// 注册脚本跳转页面
        /// </summary>
        protected void RedirectUrl()
        {
            CookieFunction.GetInstance().QuitCookie();
            Response.Redirect("/Default.html");
            //ClientScript.RegisterStartupScript(GetType(), "js", "<script>parent.location.href='/Default.html'</script>");
        }

        /// <summary>
        /// 页面初始化完成的事件
        /// </summary>
        /// <param name="e"></param>
        protected override void OnInitComplete(EventArgs e)
        {
            //---从缓存中抽取当前页面的一些公共信息
            //---这些信息主要是为了记录页面的操作日志，目的是得到页面所在的应用组和模块编码
            var entityPage = BLL.SysPage.GetInstance().GetEntityByCache(PageCode);

            //---如果获取的页面实体为空，则说明数据库中不存在这样的页面，系统需进行跳转到登录页面
            if (entityPage == null)
            {
                RedirectUrl();
                return;
            }

            //---设置页面所属的应用模组编码
            ApplicationCode = entityPage.AppCode;

            //---设置页面所属模块的编码
            ModuleCode = entityPage.ModuleCode;

            //---如果页面是回传的则不进行处理，如果不是回传的，则根据情况记录页面的访问日志
            if (!Page.IsPostBack)
            {
                switch (BLL.SysBusiness.ReturnLogLevel())
                {
                    //---如果页面日志定义为三级日志，则记录页面的访问记录
                    case SystemLogLevel.LogLevelThreeNumber:
                        var logEntity = GetLogEntity("页面访问日志，访问页面:" + entityPage.PageName, SystemLogType.ViewText);
                        BLL.SysLogInfo.GetInstance().Insert(logEntity);
                        break;
                }
            }
            base.OnInitComplete(e);
        }

        /// <summary>
        /// 记录系统错误的日志，当页面发生错误时，由OnError捕捉
        /// </summary>
        /// <param name="e"></param>
        protected override void OnError(EventArgs e)
        {
            var currentError = Server.GetLastError();
            var htm = new StringBuilder();
            htm.AppendLine("");
            htm.AppendLine("错误发生的Url地址：" + Request.Url);
            htm.AppendLine("错误的详细信息：" + currentError.Message);
            htm.AppendLine("Stack Trace:" + currentError);
            htm.AppendLine(currentError.HelpLink);

            bool flage;
            SystemLog.GetInstance().WriteLogToFile(htm.ToString(), "系统错误日志", StringFunction.GetInstance().GetIpAddress(), Request.Url.ToString(), out flage);
            Server.ClearError();
            Response.Write("<h1>您的访问不符合系统访问要求，请重试或联系网站管理员咨询！</h1>");
            Response.End();
            base.OnError(e);
        }
        #endregion

        #region "基类方法"
        /// <summary>
        /// 获取当前母板页面的lbCurrentPosition控件
        /// </summary>
        /// <returns></returns>
        protected Label GetNavigateLabel()
        {
            if (Master != null)
                return (Label)Master.FindControl("lbCurrentPosition");
            return null;
        }

        /// <summary>
        /// 获取母板页中的pButtonContainter控件
        /// </summary>
        /// <returns></returns>
        protected Panel GetNavigatePanel()
        {
            if (Master != null)
                return (Panel)Master.FindControl("pButtonContainter");
            return null;
        }

        /// <summary>
        /// 生成日志类实体，填充必要的日志信息
        /// </summary>
        /// <param name="logContent">日志内容</param>
        /// <param name="logType">日志类型</param>
        /// <returns>SysLogInfo实体</returns>
        protected SysLogInfo GetLogEntity(String logContent, String logType)
        {
            var entity = new SysLogInfo
            {
                CreateTime = DateTime.Now,
                FromIpAddress = StringFunction.GetInstance().GetIpAddress(),
                FromUrl = StringFunction.GetInstance().GetUrlAddress(),
                LogCode = StringFunction.GetInstance().GetGuidString(),
                UserCode = AuthTicket.Name,
                PageCode = PageCode,
                ApplicationCode = ApplicationCode,
                ModuleCode = ModuleCode,
                LogContent = logContent,
                LogType = logType,
            };
            return entity;
        }
        #endregion
    }
}

天天开会

超级棒，不错。