使用ASP.NET/VB.NET将数据插入SQL数据库

我有以下代码：

    Dim myConn As SqlConnection
    Dim cmd As SqlCommand
    Dim sqlstring, DNAME, DEXP, DCREATION, DLASTUPDATE, DCOMMENTS As String

    DNAME = TextBox1.Text
    DEXP = TextBox2.Text
    DCREATION = TextBox3.Text
    DLASTUPDATE = TextBox4.Text
    DCOMMENTS = TextBox5.Text


    myConn = New SqlConnection("Integrated Security=SSPI;Data Source=.;Initial Catalog=DOMAIN_NAME;User ID=sa;Password=***********")

    myConn.Open()

    sqlstring = " INSERT INTO ROLAND (D_NAME, D_EXPIRATION, D_CREATION, D_LASTUPDATE,D_COMMENTS) VALUES ('" + DNAME + "','" + DEXP + "','" + DCREATION + "','" + DLASTUPDATE + "','" + DCOMMENTS + "')"

    cmd = New SqlCommand(sqlstring, myConn)

    cmd.ExecuteNonQuery()

    myConn.Close()

    Response.Redirect(Request.RawUrl, True)

当我执行时，它会给我以下错误：

Cannot open database "DOMAIN_NAME" requested by the login. The login failed.
Login failed for user 'comm-pc10\pcuser10.comm'.

并突出显示myConn.Open（）

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这里有什么问题，有什么帮助吗？我有SQLServer2008和我的数据库的用户名和密码

您已在其上集成了安全性，这意味着SQLServer使用Windows身份验证，因此会忽略您的用户和密码设置。我猜你的windows用户没有访问数据库的权限

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设置“integratedsecurity=false”以使用用户名/密码。

问题在于连接字符串：

Initial Catalog = Database Name Not Domain Name

并确保您的用户id和密码正确，数据源是正确的服务器地址

有关更多信息，请参见此：

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您正在使用Integrated Security=SSPI，它与窗口使用身份验证相链接。

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或者您应该将该用户添加到数据库中以删除该用户。

此代码有助于使用vb.net 2010访问数据库中的多个记录 ”“苏尼尔先生

    Imports System

    Imports System.Data

    Imports System.Data.SqlClient

    Imports System.Data.DataSet

    Imports System.Data.SqlTypes


    Public Class insert_extracode
        Dim i As Int16
        Private Sub insert_extracode_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

            i = 0

        End Sub

        Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

            Dim con As New SqlConnection

            Dim cmd As New SqlCommand

            Dim adp As New SqlDataAdapter

            Dim data As New DataSet

            con.ConnectionString = "Data Source=DELL-PC\SQLEXPRESS;Initial Catalog=hotel;Integrated Security=True"

            cmd.Connection = con

            Dim str As String = "select * from customer"

            cmd = New SqlCommand(str, con)

            adp = New SqlDataAdapter(cmd)

            adp.Fill(data)

            TextBox1.Text = data.Tables(0).Rows(i).Item(0)
            TextBox2.Text = data.Tables(0).Rows(i).Item(1)
            TextBox3.Text = data.Tables(0).Rows(i).Item(2)
            i = i + 1
        End Sub
    End Class

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我建议您了解如何在vb中进行参数化查询。像这样连接insert语句会为SQL注入留下很大的空间。更糟糕的是，他使用SA帐户