Mybatis实习笔记--1

1、MAVEN实现包导入

<!-- 导入Mysql数据库链接jar包 -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.36</version>
</dependency>

<!-- mybatis核心包 -->
<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>3.3.0</version>
</dependency>

2、mybatis.cfg.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!--定义连接池-->
    <environments default="development">
        <environment id="development">
            <transactionManager type="jdbc"></transactionManager>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://***********:3306/***"/>
                <property name="username" value="***"/>
                <property name="password" value="******"/>
            </dataSource>
        </environment>
    </environments>

    <!--配置每张表的映射文件-->
    <mappers>
        <mapper resource="member.xml"/>
    </mappers>
</configuration>

3、member.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="Member">
    <insert id="create" parameterType="com.vitoh.mybatis.dao.Member">
      insert into member(name,age,sex) values (#{name},#{age},#{sex})
    </insert>
</mapper>

4、Member.java

package com.vitoh.mybatis.dao;

import java.io.Serializable;

/**
 * Created by vitohuang on 15/10/19.
 */
public class Member implements Serializable{
    private Long id;
    private String name;
    private Integer sex;
    private Integer age;

    public Member() {
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getSex() {
        return sex;
    }

    public void setSex(Integer sex) {
        this.sex = sex;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

5、测试Demo

package com.vitoh.mybatis.test;

import com.vitoh.mybatis.dao.Member;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.Reader;

/**
 * Created by vitohuang on 15/10/13.
 */
public class TestOne {

    private static SqlSessionFactory sqlSessionFactory;
    private static Reader reader;
    private static final String CONFIG = "mybatis.cfg.xml";

    static{
        try{
            //第一步读取配置文件信息
            reader = Resources.getResourceAsReader(CONFIG);
            //第二步通过 SqlSessionFactoryBuilder 实例化 SqlSessionFactory
            sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
        }catch(Exception e){
            e.printStackTrace();
        }
    }

    public static void main(String args[]){
        //第三步获取操作数据库对象SqlSession
        SqlSession session = sqlSessionFactory.openSession();
        try {
            Member user = new Member();
            user.setName("VitoHuang");
            user.setAge(24);
            user.setSex(0);
            //第四步CRUD
            session.insert("Member.create",user);
            //第五步提交事务
            session.commit();
        }catch (Exception e){
            session.rollback();
            e.printStackTrace();
        } finally {
            //第六步关闭连接
            session.close();
        }
    }
}