package JDBC.WildCat.com;
import java.sql.*;
public class TestJdbc1 {
/**标准版
* MySql数据库小程序 实现wild_java数据库里student表的查询
*
* @param args
* @throws SQLException
* @throws ClassNotFoundException
*/
public static void main(String[] args) {
Connection conn=null;
Statement stmt=null;
ResultSet rs=null;
try{
// step1. new一个Driver
Class.forName("com.mysql.jdbc.Driver");
//step2. 拿到一个连接
String url = "jdbc:mysql://localhost/wild_java?user=root&password=family";
conn = DriverManager.getConnection(url);
//step3.创建一个Statement
stmt=conn.createStatement();
//step4. 获得一个结果集
rs=stmt.executeQuery("select * from student");
//step5.遍历结果集
while (rs.next())
{
System.out.println(rs.getString("NAME"));
}
}catch(ClassNotFoundException e){
e.printStackTrace();
}catch (SQLException e){
e.printStackTrace();
}
finally{
//step6. 关闭对象
try{
if (rs!=null){
rs.close();
rs=null;//放入垃圾回收站
}
if (stmt!=null){
stmt.close();
stmt=null;
}
if (conn!=null){
conn.close();
conn=null;
}
}catch (SQLException e){
e.printStackTrace();
}
}
}
}