SpringBoot的MyBatis框架搭建

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一 增加相关依赖

<dependencies>
    <dependency>
        <groupId>org.mybatis.spring.boot</groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>1.3.1</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <!-- 数据库 -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
    <!-- 连接池 -->
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.2</version>
    </dependency>        
</dependencies>

二 application.properties

server.port=8080
#加入/demo前缀
server.context-path=/demo

#DataSource
#数据库驱动
jdbc.driver=com.mysql.jdbc.Driver
#数据库链接
jdbc.url=jdbc:mysql://localhost:3306/o2o?useUnicode=true&characterEncoding=utf8&useSSL=false
#数据库用户名
jdbc.username=root
#数据库密码
jdbc.password=123456

#Mybatis
mybatis_config_file=mybatis-config.xml
mapper_path=/mapper/**.xml
type_alias_package=com.imooc.demo.entity

三 mybatis配置文件

<?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>
    <!-- 配置全局属性 -->
    <settings>
        <!-- 使用jdbc的getGeneratedKeys获取数据库自增主键值 -->
        <setting name="useGeneratedKeys" value="true" />

        <!-- 使用列标签替换列别名 默认:true -->
        <setting name="useColumnLabel" value="true" />

        <!-- 开启驼峰命名转换:Table{create_time} -> Entity{createTime} -->
        <setting name="mapUnderscoreToCamelCase" value="true" />
    </settings>
</configuration>

四 数据库脚本

1 创建数据库

create database demo;

2 创建表

CREATE TABLE tb_area (
    area_id int(2) NOT NULL auto_increment,
    area_name varchar(200) NOT NULL,
    priority int(2) NOT NULL DEFAULT'0',
    create_time datetime DEFAULT NULL,
    last_edit_time datetime DEFAULT NULL,
    PRIMARY KEY(area_id),
    UNIQUE KEY UK_AREA(area_name)
)ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;