CREATE DATABASE `mybatis`
CREATE TABLE `monster` (
    `id` INT NOT NULL AUTO_INCREMENT,
    `age` INT NOT NULL,
    `birthday` DATE DEFAULT NULL,
    `email` VARCHAR(255) NOT NULL ,
    `gender` TINYINT NOT NULL,
    `name` VARCHAR(255) NOT NULL,
    `salary` DOUBLE NOT NULL,
    PRIMARY KEY (`id`)
) CHARSET=utf8

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <!--
    1. 将mybatis作为父项目管理多个子模块/子项目
    2. 父项目的完整的坐标 groupId[组织名]+artifactId[项目名]
    3. 后面该父项目会管理多个子模块/子项目 , 将来父项目中的引入的依赖可以直接给子项目用
       , 这样开发简单，提高复用性，也便于管理
    4. <packaging>pom</packaging> 表示父项目有多个子模块/子项目管理工程
    -->
    <groupId>com.nlc</groupId>
    <artifactId>mybatis</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <!--加入依赖-->
    <dependencies>
        <!--mysql依赖-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.49</version>
        </dependency>
        <!--mybatis依赖-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.7</version>
        </dependency>
        <!--junit依赖-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
    </dependencies>
</project>

<?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>
    <environments default="development">
        <environment id="development">
            <!--配置事务管理器-->
            <transactionManager type="JDBC"/>
            <!--配置数据源-->
            <dataSource type="POOLED">
                <!--配置驱动-->
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <!--配置连接mysql-url
                解读:
                1. jdbc:mysql 协议
                2. 127.0.0.1:3306 : 指定连接mysql的ip+port
                3. mybatis: 连接的DB
                4. useSSL=true 表示使用安全连接
                5. &amp; 表示 & 防止解析错误
                6. useUnicode=true : 使用unicode 作用是防止编码错误
                7. characterEncoding=UTF-8 指定使用utf-8, 防止中文乱码
                8. 温馨提示：不要背，直接使用即可
                -->
                <property name="url" value="jdbc:mysql://127.0.0.1:3306/mybatis?useSSL=true&amp;useUnicode=true&amp;characterEncoding=UTF-8"/>
                <property name="username" value="root"/>
                <property name="password" value="123456"/>
            </dataSource>
        </environment>
    </environments> 
</configuration>

 //Monster 和 monster表有对应关系
//1. 一个普通的Pojo类
//2. 使用原生态的sql语句查询结果还是要封装成对象
//3. 这里的实体类属性名和表名字段保持一致。
public class Monster {
    //属性-和表字段有对应关系
    private Integer id;
    private Integer age;
    private String name;
    private String email;
    private Date birthday;
    private double salary;
    private Integer gender;
    public Monster() {
    }
    public Monster(Integer id, Integer age, String name, String email, Date birthday, double salary, Integer gender) {
        this.id = id;
        this.age = age;
        this.name = name;
        this.email = email;
        this.birthday = birthday;
        this.salary = salary;
        this.gender = gender;
    }
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public Integer getAge() {
        return age;
    }
    public void setAge(Integer age) {
        this.age = age;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    public Date getBirthday() {
        return birthday;
    }
    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }
    public double getSalary() {
        return salary;
    }
    public void setSalary(double salary) {
        this.salary = salary;
    }
    public Integer getGender() {
        return gender;
    }
    public void setGender(Integer gender) {
        this.gender = gender;
    }
    @Override
    public String toString() {
        return "Monster{" +
                "id=" + id +
                ", age=" + age +
                ", name='" + name + '\'' +
                ", email='" + email + '\'' +
                ", birthday=" + birthday +
                ", salary=" + salary +
                ", gender=" + gender +
                '}';
    }
}

/**
 * 1. 这是一个接口
 * 2. 该接口用于声明操作monster表的方法
 * 3. 这些方法可以通过注解或者xml文件来实现
 */
public interface MonsterMapper {
    //添加monster
    public void addMonster(Monster monster);
}