我是按照java程序写的importjava.io.*;importjava.util.*;importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.ResultSet;importjava.sql.SQLException;importjava.sql.Statement;importjava.util.logging.Level;importjava.util.*;publicclassSample{publicstaticvoidmain(String[]args)throwsIOException