Question

我需要使用Javascript从SQl Server 2008数据库中读取一些数据。所以我写了这个：（html页面代码）

<!DOCTYPE html "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Database Connect</title>
<script type="text/javascript">
function loadDB(){
var connection = new ActiveXObject("ADODB.Connection");

var connectionstring="Data Source=ИЛЬЯ-ПК;Initial Catalog=C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\DATA\SIGMA_Database.mdf;User ID=Илья;Password="";Provider=SQLOLEDB";

connection.open(connectionstring);
var rs = new ActiveXObject("ADODB.Recordset");

rs.Open("SELECT Username FROM Users", connection);
rs.MoveFirst();
while(!rs.eof)
{
   document.write(rs.fields(1));
   rs.MoveNext();
}

rs.close();
connection.close();

}
</script>
</head>
<body onload="loadDB()">
<div id="main"></div>
</body>
</html>

然而，没有任何反应！这有什么问题？连接字符串中有一些西里尔字母符号，它可能是问题的根源吗？还是另一件事是错的？

Answer 1

这是IE唯一的代码，即使在IE中您也必须明确允许这样的事情，请在此处查看已接受的答案：
ActiveXObject in IE8

Answer 2

您的connectionstring未正确转义，应为：

var connectionstring="Data Source=ИЛЬЯ-ПК;Initial Catalog=C:\\Program Files\\Microsoft SQL Server\\MSSQL10.MSSQLSERVER\\MSSQL\\DATA\\SIGMA_Database.mdf;User ID=Илья;Password=\"\";Provider=SQLOLEDB";

Answer 3

你试过吗

s.Open("SELECT Username FROM Users", connection);
rs.MoveFirst();
while(!rs.EOF)
{
   document.write(rs.Fields.Item(1));
   rs.MoveNext();
}

rs.Close();
connection.Close();

编辑rs.Fields

Answer 4

您的代码的问题是您使用物理驱动器路径C：\ Program Files \ Microsoft SQL Server \ MSSQL10.MSSQLSERVER \ MSSQL \ DATA \ SIGMA_Database.mdf;

访问SQL Server数据库

使用以下代码连接到SQL Server

var strconnectionstring =“Data Source = your_server_name; Initial Catalog = your_database_name; User ID = database_user_id; Password = database_password; Provider = SQLOLEDB”;

使用Javascript连接SQL Server数据库

4 个答案: