最近在学习数据库开发的一些实例，这里浅谈一下用JDBC连接数据库MySQL（当然也可以连接SQL Sever或Oracle了，只是我更喜欢开源软件，同时也更简单）。
首先正确安装好MySQL，建立好数据库studentinfo
mysql>create database studentinfo;然后编写java代码，ConnectToMySQL.java
import java.sql.*; public class ConnectToMySQL { public static Connection getConnection() throws SQLException , java.lang.ClassNotFoundException{ String url = "jdbc:mysql://localhost:3306/studentinfo"; Class.forName("com.mysql.jdbc.Driver"); String userName = "root"; String password = ""; Connection con = DriverManager.getConnection(url,userName,password); return con; } public static void main(String[] args) { try{ Connection con = getConnection(); Statement sql = con.createStatement(); sql.execute("drop table if exists student"); sql.execute("create table student(id int not null auto_increment,name varchar(20) not null default 'name',math int not null default 60,primary key(id));"); sql.execute("insert student values(1,'AAA','99')"); sql.execute("insert student values(2,'BBB','77')"); sql.execute("insert student values(3,'CCC','65')"); String query = "select * from student"; ResultSet result = sql.executeQuery(query); System.out.println("Student表数据如下："); System.out.println("---------------------------------"); System.out.println("学号"+" "+"姓名"+" "+"数学成绩"); System.out.println("---------------------------------"); int number; String name; String math; while(result.next()){ number = result.getInt("id"); name = result.getString("name"); math = result.getString("math"); System.out.println(number + " " + name + " " + math); } sql.close(); con.close(); }catch(java.lang.ClassNotFoundException e){ System.err.println("ClassNotFoundException:" + e.getMessage()); }catch(SQLException ex){ System.err.println("SQLException:" + ex.getMessage()); } } }轻松搞定，一下为输出结果：
要注意的是使用MySQL数据库，需要用到对应的JDBC驱动程序mysql-connector-java-5.0.3，可以到zySQL的官方网站上下载()
