技術標籤：Spring學習

Myabatis基礎搭建

步驟：

1. 匯入相關jar包
   ① junit
   ②mybatis
   ③spring
   ④mysql
   ⑤aop
   ⑥mybatis-spring
   ⑦lombok
   ⑧資源過濾

<dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version
 
>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <dependency>
            <groupId
 
>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId
 
>
            <version>5.1.10.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.1.10.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.4</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.2</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.16</version>
        </dependency>
    </dependencies>
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
    </build>

2. 編寫配置檔案

• mybatis-config
• mybatisUtils
• 實體類
• 介面
• 介面實現類

3. 測試

Myabatis整合Spring

步驟：

1. 編寫資料配置源
2. sqlSessionFactory
3. sqlSessionTemplate
4. 給介面增加實現類
5. 將實現類注入到spring中
6. 測試

對比：

• 可以用applicationContext.xml配置，替換掉mybatis中的mybatisUtils.class和mybatis-config.xml檔案
• 增加的實現類可以通過spring注入，拿到SqlSession並把建立的權力交給spring，不用手動建立SqlSession物件了
• 在實現類裡操作mybatis裡測試時需要拿到的SqlSession物件及getMapper方法
• 總的來說，就三個地方的修改：
  • 用資料來源替代mybatisUtils.class和mybatis-config.xml檔案
  • 在spring中拿到sqlSessionFactory
  • 在spring中拿到sqlSession