mysql jdbc 的连接

import java.sql.DriverManager;
import java.sql.*;
import com.mysql.jdbc.Connection;
import com.mysql.jdbc.Statement;

public class TestJdbc {
/**
  * 接入mysql数据库测试程序
  */
public static void main(String[] args) {
  Connection conn = null;
  Statement stat = null;
  ResultSet rs = null;
  try {
   // 装载数据库驱动类
   Class.forName("com.mysql.jdbc.Driver").newInstance();
   // 创建连接
   conn = (Connection) DriverManager.getConnection("jdbc:mysql://"
     + "localhost/StuRoom?user=root&password=root");
   // 创建对象，取得数据
   stat = (Statement) conn.createStatement();
   rs = stat.executeQuery("select * from student");
   while (rs.next()) {
    System.out.println(rs.getString("StuNo"));
   }

  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } finally {
   try {
    if (rs != null) {
     rs.close();
     rs = null;
    }
    if (stat != null) {
     stat.close();
     stat = null;
    }
    if (conn != null) {
     conn.close();
     conn = null;
    }

   } catch (Exception e) {
    e.printStackTrace();
   }
  }

}

}