Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); String url="jdbc:sqlserver://localhost:1433;databasename=student"; String user="sa"; String password="czq894975048"; Connection conn= DriverManager.getConnection(url,user,password); Statement stmt=conn.createStatement(); String SQL = "insert into s(num,name,sex,age,weight) values('"+num+"','"+name+"','"+sex+"','"+age+"','"+weight+"')"; stmt.executeUpdate(SQL) ; stmt.close(); conn.close();