出现ClassNotFoundExceptionimport java.sql.*;public class jdbc{ public static void main(String args[]) { String connectionURL = "jdbc:sqlserver://localhost:1433;DatabaseName=jdbc"; try { Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); Connection con = DriverManager.getConnection(connectionURL); Statement stmt = con.createStatement(); ResultSet rs = stmt.executeQuery("select *"); while (rs.next()) { System.out.println(rs.getString("uni_name")); } } catch (SQLException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } /*finally { con.close(); }*/ }}