lab9.java

加拿大达内科技有限公司配需java程序员的上课时的代码

package day02;
import java.sql.*;
public class Lab9 {

	public static void main(String[] args) {
		Connection con = null;
		PreparedStatement ps = null;
		ResultSet rs = null;
		if(args.length!=1){
			System.out.println("Usage: jdbc day.Lab8"+"tableName");
			return ;
		}
		String sql = "select * from "+args[0];
		try{
			con = JdbcUtil.getConnection();
			ps = con.prepareStatement(sql);
			rs = ps.executeQuery();
			JdbcUtil.printRs(rs);
		}catch(Exception e){
			e.printStackTrace();
		}finally{
			JdbcUtil.release(rs, ps, con);
		}
	}

}