Question

如何从以下网址获取特定值我只需要获得3个值

http://earnprofitclickint.com/UserWorking/Successfull.aspx?lr_paidto=U9925362&lr_amnt=2.00&lr_currency=LRUSD&lr_store=http%3A%2F%2Fwww.earnprofitclickint.com&lr_merchant_ref=&lr_paidby=U3563444&lr_fee_amnt=0.00&lr_transfer=143636187&lr_timestamp=2013-12-05+18%3A31%3A33&ctl00%24contentplaceholder1%24amount=&ctl00%24contentplaceholder1%24id=70&ctl00%24contentplaceholder1%24txtamount=+2&ctl00%24contentplaceholder1%24username=networker&lr_encrypted=04E20ADA982A2AF9C1C64DB3C1601BA596373E22D7B4D21813A51C43DC0198CD&lr_encrypted2=59C8269D431F915360F3B8179EC95181D8C458AB91D72AF3DFC1DC0DFDAC4F64

我想从Liberty Reserve Website返回上述URL中的3个值，并希望使用LINQ TO SQL将这三个值插入数据库

我需要获得以下值

r_amnt=2.00 ID=70 username=networker

我已在页面加载中编写代码，以便在响应到达并重定向到我的成功页面时获取上述值：

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        ID.Value = Request.QueryString["id"].ToString();
        UserName.Value = Request.QueryString["username"].ToString();
        Amount.Value = Request.QueryString["lr_amnt"].ToString();

        SaveLocalHistory();
        Divmessage.Visible = true;
    }
}

public void SaveLocalHistory()
{
    MLMDataContext db = new MLMDataContext();

    UsersInvestement pd = new UsersInvestement();
    pd.Amount = Convert.ToDouble(Amount.Value);
    pd.UserId = Convert.ToInt32(ID.Value);
    pd.UserName = UserName.Value;
    pd.Description = "This amount has been received From LR";
    pd.IncomeTypeId = 4;
    pd.CreatedDate = DateTime.Now.Date;
    db.UsersInvestements.InsertOnSubmit(pd);
    db.SubmitChanges();
}

这是URL中的手动更改：

http://earnprofitclickint.com/UserWorking/Successfull.aspx?lr_paidto=U9925362&lr_amnt=2.00&lr_currency=LRUSD&lr_store=http%3A%2F%2Fwww.earnprofitclickint.com&lr_merchant_ref=&lr_paidby=U3563444&lr_fee_amnt=0.00&lr_transfer=143636187&lr_timestamp=2013-12-05+18%3A31%3A33&ctl00%24contentplaceholder1&amount=&ctl00%24contentplaceholder1&id=70&ctl00%24contentplaceholder1%24txtamount=+2&ctl00%24contentplaceholder1&username=networker&lr_encrypted=04E20ADA982A2AF9C1C64DB3C1601BA596373E22D7B4D21813A51C43DC0198CD&lr_encrypted2=59C8269D431F915360F3B8179EC95181D8C458AB91D72AF3DFC1DC0DFDAC4F64

如果我手动更改它，那么它可以工作。有什么想法吗？

Answer 1

您的参数名称不是username和id，ctl00$contentplaceholder1$username为username，ctl00$contentplaceholder1$id为id

自URLDecode提供%24后$，您也需要进行相应的替换。

试试这个：

ID.Value = Request.QueryString["ctl00$contentplaceholder1$id"].ToString();
UserName.Value = Request.QueryString["ctl00$contentplaceholder1$username"].ToString();
Amount.Value = Request.QueryString["r_amnt"].ToString();

它应该有效。别的我知道！：）

Answer 2

我相当确定查询字符串值区分大小写，这意味着此代码

ID.Value = Request.QueryString["ID"].ToString();
UserName.Value = Request.QueryString["UserName"].ToString();
Amount.Value = Request.QueryString["lr_amnt"].ToString();

应该采用这种形式

ID.Value = Request.QueryString["id"].ToString();
UserName.Value = Request.QueryString["username"].ToString();
Amount.Value = Request.QueryString["r_amnt"].ToString();

如果你想拉出“r_amnt = 2.00 id = 70 username = networker”

顺便说一句，请注意，您从不处理数据库上下文。这可能是危险的，因为很可能你的连接很长时间没有关闭，我建议这样做：

using( MLMDataContext db = new MLMDataContext() )
{
 UsersInvestement pd = new UsersInvestement();
 pd.Amount = Convert.ToDouble(Amount.Value);
 pd.UserId = Convert.ToInt32(ID.Value);
 pd.UserName = UserName.Value;
 pd.Description = "This amount has been received From LR";
 pd.IncomeTypeId = 4;
 pd.CreatedDate = DateTime.Now.Date;
 db.UsersInvestements.InsertOnSubmit(pd);
 db.SubmitChanges();
}

using语句确保在DataContext上调用Dispose（继承自IDisposable），并在操作完成后正确关闭连接。

我如何从ASP.NET中的URL获取特定值

2 个答案: