Java中连接数据库的方法

try{
  Class.forName("Weblogic.jdbc.mssqlserver4.Driver");
  Connection conn = DriverManager.getConnectio ("jdbc:weblogic:mssqlserver4:localhost:1433","username","password");
  conn.setAutoCommit(false);
  PreparedStatement pstmt = conn.prepareStatement("select * from table_name");
  ResultSet rs = pstmt.executeQuery();
  while(rs.next()){
    System.out.println(rs.getString(1));
  }
}