sql server 2008不支持JDBC驱动程序类

Question

in my java code JDBC driver class is not supported with ms sql server 2008 while it works perfectly with ms sql server 2005

i have put jdbc driver class "com.microsoft.sqlserver.jdbc.SQLServerDriver"

MY CODE IS

import java.sql.*;

  public class MysqlConnect{
  public static void main(String[] args) {
  System.out.println("MySQL Connect Example.");
  Connection conn = null;
  String url = "jdbc:sqlserver://SQLSERVERIP:1433;";
  String dbName = "DatabaseName=DBNAME";
  String driver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
  String userName = "sa"; 
  String password = "password";
  try {
  Class.forName(driver).newInstance();
  conn = DriverManager.getConnection(url+dbName,userName,password);
  System.out.println("Connected to the database");
  conn.close();
  System.out.println("Disconnected from database");
  } catch (Exception e) {
  e.printStackTrace();
  }
 }
}    

while i am trying to connect it gives an error

com.microsoft.sqlserver.jdbc.SQLServerException: Cannot open database "hj_cnb_ci
" requested by the login. The login failed.
        at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError
(SQLServerException.java:197)
        at com.microsoft.sqlserver.jdbc.TDSTokenHandler.onEOF(tdsparser.java:246
)
        at com.microsoft.sqlserver.jdbc.TDSParser.parse(tdsparser.java:83)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.sendLogon(SQLServerC
onnection.java:2529)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.logon(SQLServerConne
ction.java:1905)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.access$000(SQLServer
Connection.java:41)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection$LogonCommand.doExecu
te(SQLServerConnection.java:1893)
        at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:4615)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLSe
rverConnection.java:1400)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLSer
verConnection.java:1045)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConne
ction.java:817)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerCon
nection.java:700)
        at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.
java:842)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at MysqlConnect.main(MysqlConnect.java:14)

plz help me to sort out this issue..

Answer 1

Please check your jdbc driver version. "Microsoft JDBC Driver 4.0" is suitable for your ms sql server 2008.

Answer 2

如果您使用的是SQL Server 2008，请将驱动程序类更改为-com.microsoft.jdbc.sqlserver.SQLServerDriver。连接应正常工作。

Answer 3

检查是否存在“ hj_cnb_ci”或DBName在您的数据库服务器上创建了它

Answer 4

Please check your database name. There is no need to call newInstance() when you load the class; it will call its static block and call the registerDriver() method of the Driver manager class, and will pass its reference as a parameter.

This method carries an object of the Driver class. When you call the driver manager's getConnection() method, interally it will call drivers class method connection with the help of that object.