Question

我的java代码中的

ms sql server 2008不支持JDBC驱动程序类，而它与ms sql server 2005完美配合

我已经把jdbc驱动程序类“com.microsoft.sqlserver.jdbc.SQLServerDriver”

我的代码是

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();
  }
 }
}

当我尝试连接时会出错

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)

请帮助我解决这个问题..

Answer 1

请检查您的jdbc驱动程序版本。 “Microsoft JDBC Driver 4.0”适用于您的ms sql server 2008。

Answer 2

如果您使用的是SQL Server 2008，请将您的驱动程序类更改为 - com.microsoft.jdbc.sqlserver.SQLServerDriver。连接应该可以正常工作。

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它

Answer 4

请检查您的数据库名称。加载课程时无需致电newInstance();它将调用其静态块并调用Driver manager类的registerDriver()方法，并将其引用作为参数传递。

此方法包含Driver类的对象。当您调用驱动程序管理器的getConnection()方法时，它会在该对象的帮助下调用驱动程序类方法连接。

sql server 2008不支持JDBC驱动程序类

4 个答案: