mybatis-config.xml配置

`

<properties resource="db.properties"></properties>
<settings>
    <!-- 打印查询语句 -->
    <setting name="logImpl" value="STDOUT_LOGGING" />
    <!-- 控制全局缓存（二级缓存）-->
    <setting name="cacheEnabled" value="true"/>
    <!-- 延迟加载的全局开关。当开启时，所有关联对象都会延迟加载。默认 false  -->
    <setting name="lazyLoadingEnabled" value="true"/>
    <!-- 当开启时，任何方法的调用都会加载该对象的所有属性。默认 false，可通过select标签的 fetchType来覆盖-->
    <setting name="aggressiveLazyLoading" value="false"/>
    <!--  Mybatis 创建具有延迟加载能力的对象所用到的代理工具，默认JAVASSIST -->
    <!--<setting name="proxyFactory" value="CGLIB" />-->
    <!-- STATEMENT级别的缓存，使一级缓存，只针对当前执行的这一statement有效 -->
    <!--
            <setting name="localCacheScope" value="STATEMENT"/>
    -->
    <setting name="localCacheScope" value="SESSION"/>
</settings>

<typeAliases>
    <typeAlias alias="blog" type="com.wuzz.domain.Blog" />
</typeAliases>

  <!--    <typeHandlers>
    <typeHandler handler="com.wuzz.type.MyTypeHandler"></typeHandler>
</typeHandlers>-->

<!-- 对象工厂 -->
  <!--    <objectFactory type="com.wuzz.objectfactory.GPObjectFactory">
    <property name="wuzz" value="666"/>
</objectFactory>-->

  <!--    <plugins>
    <plugin interceptor="com.wuzz.interceptor.SQLInterceptor">
        <property name="wuzz" value="betterme" />
    </plugin>
    <plugin interceptor="com.wuzz.interceptor.MyPageInterceptor">
    </plugin>
</plugins>-->

<environments default="development">
    <environment id="development">
        <transactionManager type="JDBC"/><!-- 单独使用时配置成MANAGED没有事务 -->
        <dataSource type="POOLED">
            <property name="driver" value="${jdbc.driver}"/>
            <property name="url" value="${jdbc.url}"/>
            <property name="username" value="${jdbc.username}"/>
            <property name="password" value="${jdbc.password}"/>
        </dataSource>
    </environment>
</environments>

<mappers>
    <mapper resource="BlogMapper.xml"/>
    <mapper resource="BlogMapperExt.xml"/>
</mappers>

  </configuration>



  `

引用 https://www.cnblogs.com/wuzhenzhao/p/11092526.html