Sql Oracle字符串连接属性
我一直在网站上查找字符串连接及其参数。我已经用这段代码实现了连接,但我不知道如何将参数与用户输入连接起来 这是我的密码:Sql Oracle字符串连接属性,sql,vb.net,oracle,Sql,Vb.net,Oracle,我一直在网站上查找字符串连接及其参数。我已经用这段代码实现了连接,但我不知道如何将参数与用户输入连接起来 这是我的密码: Imports System Imports System.Data Imports System.Data.OracleClient Module OracleConnect Sub Main() Dim connString As String = "server = o92; uid = java2s;password = password;"
Imports System
Imports System.Data
Imports System.Data.OracleClient
Module OracleConnect
Sub Main()
Dim connString As String = "server = o92; uid = java2s;password = password;"
'Create connection
Dim conn As New OracleConnection(connString)
Try
conn.Open()
Console.WriteLine("Connection Opened")
Console.WriteLine("Connection Properties")
Console.WriteLine("- ConnectionString : {0}", conn.ConnectionString)
Console.WriteLine("- ServerVersion : {0}", conn.ServerVersion)
Console.WriteLine("- State : {0}", conn.State)
Catch ex As OracleException
Console.WriteLine("Error: " & ex.ToString())
Finally
' Close Connection
conn.Close()
Console.WriteLine("Connection Closed")
End Try
End Sub
重点是我想用用户输入参数更改连接字符串,这样它将是一个文本框,服务器和密码以及侦听器将跟踪用户的输入
非常感谢看起来您启动了一个控制台项目,而不是winform项目。后者允许您将文本框和按钮等控件拖放到表单上,以便用户能够填写连接字符串字段 然后可以像这样连接连接字符串:
Dim connString As String = "server = " & Textbox1.Text &"; uid = " & Textbox2.Text &";password = " & Textbox3.Text &";"
或者,您可以使用console应用程序,并使用命令行参数启动它。使用。后者允许您将文本框和按钮等控件拖放到表单上,以便用户能够填写连接字符串字段 然后可以像这样连接连接字符串:
Dim connString As String = "server = " & Textbox1.Text &"; uid = " & Textbox2.Text &";password = " & Textbox3.Text &";"
或者您可以使用console应用程序,并使用命令行参数启动它。您可以尝试这样的功能,传入文本框的值
Public Function connectionString(server As String, uid As String, password As String) As String
Dim tmpServer(2) As String
tmpServer(0) = "server = " & server
tmpServer(1) = "uid = " & uid
tmpServer(2) = "password = " & password
Return String.Join("; ", tmpServer) & ";"
End Function
用法将是
Dim conn As New OracleConnection(connectionString(TextBox1.Text, TextBox2.Text, TextBox3.Text))
您可以尝试这样的函数,传入文本框的值
Public Function connectionString(server As String, uid As String, password As String) As String
Dim tmpServer(2) As String
tmpServer(0) = "server = " & server
tmpServer(1) = "uid = " & uid
tmpServer(2) = "password = " & password
Return String.Join("; ", tmpServer) & ";"
End Function
用法将是
Dim conn As New OracleConnection(connectionString(TextBox1.Text, TextBox2.Text, TextBox3.Text))
谢谢你的快速回答。真的,我在找汉克斯的快速答案。真的是我要找的吗