package com.imooc.db;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

public class jdbc_test {

private ?static final String url="jdbc:mysql://192.168.0.101:3306/imooc";

private static final String user="root";

private static final String password="root";

public static void main(String[] args) throws ClassNotFoundException {

//加載驅(qū)動程序

Class.forName("com.mysql.jdbc.Driver");

//Class.forName("com.sun.java.util.jar.pack.Driver");

//創(chuàng)建連接

try {

Connection conn=DriverManager.getConnection(url, user, password);

Statement stmt=conn.createStatement();

//訪問數(shù)據(jù)庫進行查詢

ResultSet reset=stmt.executeQuery("select user_name,age from imooc_goddness");

while(reset.next()){

System.out.println(reset.getString("user_name")+","+reset.getInt("age"));

}

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

異常：

Exception in thread "main" java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

at java.net.URLClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Unknown Source)

at com.imooc.db.jdbc_test.main(jdbc_test.java:16)