实现登录url跳转

在开发及实际中 会是这样，登录后自动返回请求的URL

由于所有页面都继承父页面，可以在父页面中得到url，登录以后转向原请求页面。

 

判断是否登录的父类
using System;

namespace bchataspx.entity
{
    
    /// <summary>
    /// AdminPager 的摘要说明。
    /// </summary>
    public class AdminPager : StockManagerPager
    {
        protected User u = null;
        public AdminPager()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }
        protected override void OnLoad(EventArgs e)
        {
            //http://127.0.0.1/bchataspx/manager/Sac/SacDataImport.aspx
           /*pointStart*/ 
            string actionUrl = Request.RawUrl.ToString();//得到当前url
            actionUrl = Server.UrlEncode(Request.RawUrl.ToString());//对url进行编码
            /*pointEnd*/ 
            if(Request.Cookies["userId"]==null||Request.Cookies["userId"].Value.ToString().Trim()=="")
            {
                if(actionUrl!="")                    
                    Response.Redirect("/bchataspx/admin/LoginMenu.aspx?ReturnUrl="+actionUrl);
                else
                    Response.Redirect("/bchataspx/admin/LoginMenu.aspx");
            }
            else
            {
                int uid = int.Parse(Request.Cookies["userId"].Value.Trim());
                u = new User(uid);
                base.OnLoad(e);
            }
        }

    }
}

 

登录按钮事件也做相应调整

    private void btnSub_Click(object sender, System.EventArgs e)
        {
            if(txtUserPwd.Text==""||txtUserName.Text=="")
            {
                Utils.MessageBox("用户名或密码不能为空!");
                return;
            }
            string  name = txtUserName.Text.Trim().Replace("'","");
            string pwd = txtUserPwd.Text.Trim().Replace("'","");
        
            string uid = ValidateLogin(name,pwd);
            if(int.Parse(uid)>0)
            {    
                //entity.User u = new User(uid);        
                HttpCookie cookie = new HttpCookie("userId",uid);//由于cookie只能保持string类型，uid也改成string类型
                Response.Cookies.Add(cookie);   

               /*pointStart*/ 
                string ReturnUrl = Utils.GetQueryString("ReturnUrl");//得到获取的url参数
                if(ReturnUrl!="")
                    Response.Redirect(ReturnUrl);//当参数不为空转向url地址

               /*pointEnd*/ 
                else
                    Response.Redirect("Page.aspx");
            }
            else
            {
                Utils.MessageBox("用户名或密码不正确！",this);
            }
        }