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我需要检查ID是否已经在数据库中，如果是这样：更新值Longitude，Latitude，Timestamp。如果没有，则将所有数据插入数据库。如果为true，则选择mysql然后更新，否则插入
我的脚本现在是：
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.SqlClient"%>
<%@ Import Namespace="System.Reflection"%>
<%@ Page Language="VB" %>
<script runat="server">
Dim Con As New SqlConnection
Dim Cmd As New SqlCommand
Dim SQLCommand As String = ""
Dim Reader As SqlDataReader
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not String.IsNullOrEmpty(Request.QueryString("data")) Then
Dim data As String = Request.QueryString("data")
Dim myObj As New MyObject
Dim properties() As PropertyInfo = myObj.GetType().GetProperties()
Dim values() As String = Server.UrlDecode(data).Replace("{", "").Replace("}", "").Replace(""":""", """=""").Split(New Char() {","}, StringSplitOptions.RemoveEmptyEntries)
For Each value As String In values
Dim keyValue() As String = value.Split(New Char() {"="}, StringSplitOptions.RemoveEmptyEntries)
For Each prop As PropertyInfo In properties
If prop.Name.ToLower = keyValue(0).ToLower.Replace("""", "") Then
prop.SetValue(myObj, keyValue(1).Replace("""", ""), Nothing)
End If
Next
Next
myObj.Save()
lblText1.Text = String.Format("ID: {0}", myObj.ID)
lblText2.Text = String.Format("Longitude: {0}", myObj.Longitude)
lblText3.Text = String.Format("Latitude: {0}", myObj.Latitude)
lblText4.Text = String.Format("Timestamp: {0}", myObj.Timestamp)
'cmd.Parameters.AddWithValue("@ID", ID)
'cmd.Parameters.AddWithValue("@Longitude", Longitude)
'cmd.Parameters.AddWithValue("@Latitude", Latitude)
'cmd.Parameters.AddWithValue("@Timestamp", Timestamp)
'Con.ConnectionString = "Data Source=sr04011389\sql02;Initial Catalog=LocatieBepaling_Ontw;Integrated Security=True"
'Cmd.Connection = Con
'Con.Open()
' Cmd.CommandText = "INSERT INTO dbo_Locatie(id, Longitude, Latitude, Timestamp) VALUES (1234, 4567, 789, 12-12-2012)"
' Reader = Cmd.ExecuteReader
' Reader.Close()
' Con.Close()
' Con.Dispose()
End If
End Sub
'Dim values() As String = Server.UrlDecode(data).Replace("{", "").Replace("}", "").Replace(""":""", """=""").Split(New Char() {","}, StringSplitOptions.RemoveEmptyEntries) For Each value As String In values
Public Class MyObject
Private _ID As String
Private _Longitude As String
Private _Latitude As String
Private _Timestamp As String
Public Property ID As String
Get
Return _ID
End Get
Set(value As String)
_ID = value
End Set
End Property
Public Property Longitude As String
Get
Return _Longitude
End Get
Set(value As String)
_Longitude = value
End Set
End Property
Public Property Latitude As String
Get
Return _Latitude
End Get
Set(value As String)
_Latitude = value
End Set
End Property
Public Property Timestamp As String
Get
Return _Timestamp
End Get
Set(value As String)
_Timestamp = value
End Set
End Property
Public Function Save() As Boolean
Return True
Using objConn As New SqlConnection("Server=sr04011389\sql02;database=LocatieBepaling_Ontw;Trusted_Connection=yes;Max Pool Size=400;Connect Timeout=600;")
Try
Dim cmd As New SqlCommand("csp_save_my_object")
cmd.CommandType = CommandType.StoredProcedure
cmd.Parameters.AddWithValue("@ID", ID)
cmd.Parameters.AddWithValue("@Longitude", Longitude)
cmd.Parameters.AddWithValue("@Latitude", Latitude)
cmd.Parameters.AddWithValue("@Timestamp", Timestamp)
Return cmd.ExecuteNonQuery() > 0
Catch ex As Exception
Return False
End Try
End Using
End Function
Public Function SaveWithoutSP() As Boolean
Return True
Using Con As New SqlConnection("Server=sr04011389\sql02;database=LocatieBepaling_Ontw;Trusted_Connection=yes;Max Pool Size=400;Connect Timeout=600;")
Try
Con.Open()
Dim cmd As New SqlCommand("UPDATE dbo_Locatie SET (Longitude = @Longitude, Latitude = @Latitude,Timestamp = @Timestamp) WHERE [email protected] IF @@ROWCOUNT=0 INSERT INTO locatie VALUES (@ID, @Longitude, @Latitude, @Timestamp)")
cmd.CommandType = CommandType.Text
cmd.Parameters.AddWithValue("@ID", ID)
cmd.Parameters.AddWithValue("@Longitude", Longitude)
cmd.Parameters.AddWithValue("@Latitude", Latitude)
cmd.Parameters.AddWithValue("@Timestamp", Timestamp)
Return cmd.ExecuteNonQuery() > 0
Catch ex As Exception
Return False
End Try
End Using
End Function
End Class
'Sub Page_UnLoad()
'objConn.Close()
'objConn = Nothing
'End Sub
</script>
<html>
<head>
<title>TracknTrace</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Label id="lblText" runat="server"></asp:Label>
<br><asp:Label id="lblText1" runat="server"></asp:Label> </br>
<br><asp:Label id="lblText2" runat="server"></asp:Label> </br>
<br><asp:Label id="lblText3" runat="server"></asp:Label> </br>
<br><asp:Label id="lblText4" runat="server"></asp:Label> </br>
</form>
和我之前使用的PHP代码为：
$result = mysql_query("SELECT * FROM locatie WHERE id='$id'");
if($result && mysql_num_rows($result)>0){
{
$query = "Update locatie
SET longitude = '$longitude',
latitude = '$latitude',
timestamp = '$timestamp'
WHERE id = '$id'";}
else
//Als het nummer bekend is
{
//Als het een nieuw nummer is
$query = sprintf("INSERT INTO locatie (id, longitude, latitude, timestamp) VALUES ('% s', '%s', '%s', '%s') ", mysql_real_escape_string($id) , mysql_real_escape_string ($longitude), mysql_real_escape_string($latitude), mysql_real_escape_string($timestamp));}
$result = mysql_query($query) or die('Query failed: ' . mysql_error());
echo "OK";
SQL确实在这里工作。我尝试了一个简单的aspx文件来测试连接 –
你在使用MySql或Sql Server吗？你用MySql标记了你的问题。 – Steve
对不起，我误解了那一个。我使用SQL Server –