准备阶段：

1、环境： java1.8 、mysql5.1.7
2、工具： eclipse 、 Navicat
**3、包结构：**这里要注意导入MySQL资源文件：新建lib——>下载MySQL架包（对应你安装的数据库版本）——>复制粘贴 ——>右击架包——>Build Path

OK，开始敲代码实现~~~~

1、实体User

package com.wmc.jdbcProject.entity;

import java.sql.Date;

public class User {
	private int id ;
	private String name ; 
	private String password ;
	private Date birthday ;
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public Date getBirthday() {
		return birthday;
	}
	public void setBirthday(Date birthday) {
		this.birthday = birthday;
	}
}

2、配置、连接和关闭数据库资源的工具类DbUtil

package com.wmc.jdbcProject.util;
/**
 * 数据库连接的实现
 */
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class DbUtil {
	private String url = "jdbc:mysql://localhost:3306/db_jdbc_operator?useUnicode=true&characterEncoding=utf8";
	private String dbUser = "root" ;
	private String dbPassword = "wmc123" ;
	private String dbDriver = "org.gjt.mm.mysql.Driver" ;
	private Connection connection = null ;
	
	public Connection getConnection() {
		try {
			Class.forName(dbDriver) ;
			connection = DriverManager.getConnection(url,dbUser,dbPassword) ;
			System.out.println("数据库连接成功！");
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return connection ;
	}
	public void closeConnection() {
		if(connection !=null) {
			try {
				connection.close();
				System.out.println("数据库连接关闭");
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	public static void main(String[] args) {
		DbUtil dbUtil = new DbUtil() ;
		dbUtil.getConnection();
	}
	
}

3、实现配置、连接和关闭数据库资源的封装类BaseDao:不同的实体都可以通过这个父类实现对数据库的相关操作

package com.wmc.jdbcProject.baseDao;

import java.sql.Connection;

import com.wmc.jdbcProject.util.DbUtil;

public class BaseDao<T> {
	private DbUtil dbUtil = new DbUtil() ;
	public Connection connection = dbUtil.getConnection();
	public void closeConnection() {
		dbUtil.closeConnection();
	} 

}

4、通过继承BaseDao实现Dao类对数据库进行数据添加数据

package com.wmc.jdbcProject.dao;



import java.sql.PreparedStatement;
import java.sql.SQLException;

import com.wmc.jdbcProject.baseDao.BaseDao;
import com.wmc.jdbcProject.entity.User;

public class UserDao extends BaseDao<User> {

	public boolean add(User user) {
		String sql= "insert into user(id,name,password,birthday) values(null,?,?,?)" ;
		try {
			PreparedStatement preparedStatement = connection.prepareStatement(sql);
			preparedStatement.setString(1, user.getName());
			preparedStatement.setString(2, user.getPassword());
			preparedStatement.setDate(3, user.getBirthday());
			return preparedStatement.executeUpdate()>0;
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return false ;
	}

}

5、逻辑代码实现了，接下来就是新建一个数据库，新建user表的过程：用Navicat工具（连接和使用都很简单！网上都有详细教程，这里就不再赘述！）

6、定义一个测试类Test来验证连接数据库并实现数据添加是否成功？

package com.wmc.jdbcProject.test;

import java.sql.Date;

import com.wmc.jdbcProject.dao.UserDao;
import com.wmc.jdbcProject.entity.User;

public class Test {

	public static void main(String[] args) {
		User user = new User() ;
		user.setName("wmc");
		user.setPassword("wmc123");
		user.setBirthday(new Date(System.currentTimeMillis()));
		UserDao userDao = new UserDao() ;
		System.out.println(userDao.add(user));
		userDao.closeConnection();
	}

}