ASP.NET实现简单的聊天室

目录

Default.aspx

Default.aspx.cs

main.aspx

main.aspx

SendMessage.aspx

SendMessage.aspx.cs 

ShowMessage.aspx

ShowMessage.aspx.cs

Users.aspx 

Users.aspx .cs

运行结果

---

Default.aspx

    

         

            

            登陆

            

            用户名： 
            
            
            

        

    

Default.aspx.cs

protected void btnLogin_Click(object sender, EventArgs e)
    {
        bool IsChonfu = false;
        if (this.txtUsername.Text.Trim().Length < 1)
        {
            lblTs.Visible = true;
        }
        else
        {
            string UserIp = Request.UserHostAddress.ToString();
            Session["User"] = this.txtUsername.Text.Trim();
            string UserInfo = this.txtUsername.Text.Trim() + "--" + UserIp;
            ArrayList UserList;
           
            if (Application["UserList"] == null)
            {
                UserList = new ArrayList();
                UserList.Add(UserInfo);
                Application["UserList"] = UserList;
                Response.Redirect("main.aspx");
            }
            else
            {
                
                UserList = (ArrayList)Application["UserList"];
                
                for (int i = 0; i 

main.aspx

main.aspx

    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["User"] == null)
        {
            Response.Redirect("Default.aspx");
        }
    }

SendMessage.aspx

    

           

                

                发送消息
                
                
                 
               

                

            
    

SendMessage.aspx.cs 

 protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["User"] == null)
        {
            Response.Redirect("Default.aspx");
        }

    }
    protected void btnSend_Click1(object sender, EventArgs e)
    {
        ArrayList MessageList = new ArrayList();
        string SendUser = Session["User"].ToString();
        string SendMessage = this.txtMessage.Text;
        string SendTime = DateTime.Now.ToString();
        string Message = SendUser + "于" + SendTime + "说：" + SendMessage + "

";
        if (Application["MessageList"] == null)
        {
            MessageList.Add(Message);
            Application["MessageList"] = MessageList;
        }
        else
        {
            MessageList = (ArrayList)Application["MessageList"];
            MessageList.Add(Message);
            Application["MessageList"] = MessageList;
        }
        this.txtMessage.Text = "";
        this.txtMessage.Focus();
    }
    protected void btnDeleteMessage_Click(object sender, EventArgs e)
    {
        Application.Remove("MessageList");
    }
    protected void btnDeleteUsers_Click1(object sender, EventArgs e)
    {
        Application.Remove("UserList");
        Response.Redirect("Default.aspx");

    }

ShowMessage.aspx

    
     


    
    

        

                    <%
                ArrayList MessageList = new ArrayList();
                if(Application["MessageList"]==null)
                {
                    Response.Write("暂无聊天信息");
                }
                else
                {
                    MessageList = (ArrayList)Application["MessageList"];
                    for(int i=0;i
        
     

ShowMessage.aspx.cs

    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["User"] == null)
        {
            Response.Redirect("Default.aspx");
        }
    }

Users.aspx 

    

        

                  用户列表

                

                <%  
                    ArrayList UserList = new ArrayList();
                    if(Application["UserList"]==null)
                    {
                        Response.Write("暂无用户");
                    }
                    else
                    {
                        UserList = (ArrayList)Application["UserList"];
                        for(int i = 0; i < UserList.Count; i++)
                        {
                            Response.Write(UserList[i] + "

");
                        }
                    }
                    %>
            
            

            

        
    

Users.aspx .cs

    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["User"] == null)
        {
            Response.Redirect("Default.aspx");
        }
    }

运行结果