protected void RptComments_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
HiddenField UserID = e.Item.FindControl("UserID") as HiddenField;
HiddenField PostID = e.Item.FindControl("PostID") as HiddenField;
Label UserName = e.Item.FindControl("UserName") as Label;
Label PostTitle = e.Item.FindControl("PostTitle") as Label;
if (!string.IsNullOrWhiteSpace(UserID.Value))
{
UserName.Text = Users_B.UserByID(UserID.Value).Username;
}
if (!string.IsNullOrWhiteSpace(PostID.Value))
{
PostTitle.Text = Posts_B.PostByID(PostID.Value).Title;
}
}
protected void CommentList_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
HiddenField UserId = e.Item.FindControl("UserId") as HiddenField;
Label userName = e.Item.FindControl("userName") as Label;
if (!string.IsNullOrWhiteSpace(UserId.Value))
{
Users_M user = Users_B.UserByID(UserId.Value);
userName.Text = user.Username;
}
HiddenField PostId = e.Item.FindControl("PostId") as HiddenField;
Label PostTitle = e.Item.FindControl("PostTitle") as Label;
if (!string.IsNullOrWhiteSpace(PostId.Value))
{
Posts_M post = Posts_B.PostByID(PostId.Value);
PostTitle.Text = post.Title;
}
}
protected void btnComment_Click(object sender, EventArgs e)
{
if (txtComment.Text != "" || txtName.Text != "" || txtEmail.Text != "")
{
string PostId = Request.QueryString["PostId"];
string UserName = txtName.Text;
string UserEmail = txtEmail.Text;
string CommentMeta = txtComment.Text;
//HttpRequest类：使 ASP.NET 能够读取客户端在 Web 请求期间发送的 HTTP 值。
//System.Web.HttpContext.Current：
//一般在web应用程序里,你的程序都是为了处理客户端过来的http请求而执行的,当前正在处理的这个请求的一些上下文信息就保存在一个HttpContext对象里,你通过HttpContext的静态属性Current得到当前这个上下文,然后去取你需要的信息,比如查询字符串等。
HttpRequest request = HttpContext.Current.Request;
//request.ServerVariables["HTTP_X_FORWARDED_FOR"];可以知道代理服务器的服务器名以及端口
string result = request.ServerVariables["HTTP_X_FORWARDED_FOR"];
//判断是否使用代理服务器
if (string.IsNullOrEmpty(result))
{
//发出请求的远程主机的 IP 地址
result = request.ServerVariables["REMOTE_ADDR"];
}
if (string.IsNullOrEmpty(result))
{
//没有代理时直接获取客户端IP地址
result = request.UserHostAddress;
}
if (string.IsNullOrEmpty(result))
{
result = "0.0.0.0";
}
string UserIP = result;
if (Users_B.AddComment(PostId, UserName, UserEmail, CommentMeta, UserIP))
{
ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('评论成功')</script>");
}
}
else
{
ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('必填项未填')</script>");
}
}