使用JDBC相关方法,在数据库mybase 中创建一个数据表。

id int[主键，自动增长]
username varchar(32)
password varchar(32)
age int
sex enum('男','女')

并写入一条数据：username password age sex：andy,123,25,男

仅供参考：为了方便，我是直接把全部的方法和用到的类都定义在一个类里面：

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class Test2 {
	//main函数
	public static void main(String[] args) {
		Person person = new Person("andy","123","25","男");
		Test2 test2 = new Test2();
		test2.add(person);
	}
	//添加数据
	public int add(Person person) {
		String sql = " INSERT INTO mydate(username,password,age,sex) VALUES (?,?,?,?)";
		Object[] objects = {person.getUsername(),person.getPassword(),person.getAge(),person.getSex()};
		int rows = -1;
		Connection conn = null;
		PreparedStatement ps = null;
		try {	
			conn = getConnection();
			ps = conn.prepareStatement(sql);
			if (objects != null) {
				for (int i = 0; i < objects.length; i++) {				
					ps.setObject((i+1), objects[i]);
				}
			}
			rows = ps.executeUpdate();
		}catch (SQLException e) {
			e.printStackTrace();
		}finally {
			
		}	
		return rows;
	}
	
	static {
		// 1.加载驱动包
		try {
			Class.forName("com.mysql.jdbc.Driver");
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		}
	}
	//获取数据库连接
	public static Connection getConnection() {
		// 2.得到数据库连接（桥）
		Connection conn = null;
		try {
			conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mybase", "root", "123456");
		} catch (Exception e) {
			e.printStackTrace();
		}
		return conn;
	
	}
}
//一个实体类
class Person{
	private String username;
	private String password;
	private String age;
	private String sex;
	
	public Person() {
		super();
	}
	public Person(String username, String password, String age, String sex) {
		super();
		this.username = username;
		this.password = password;
		this.age = age;
		this.sex = sex;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getAge() {
		return age;
	}
	public void setAge(String age) {
		this.age = age;
	}
	public String getSex() {
		return sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}
}