mybatis详解内容

详细配置网址

configuration 配置

• properties 属性（连接数据库）
• settings 设置（改变 MyBatis 的运行时行为）
• typeAliases 类型别名
• typeHandlers 类型处理器（数据库与entity类型统一）
• objectFactory 对象工厂
• plugins 插件
• environments 环境
  • environment 环境变量
    • transactionManager 事务管理器
    • dataSource 数据源
• databaseIdProvider 数据库厂商标识
• mappers 映射器

    properties

<dataSource type="POOLED">  <property name="driver" value="${driver}"/>  <property name="url" value="${url}"/>  <property name="username" value="${username}"/>  <property name="password" value="${password}"/></dataSource>

    <!-- 引入配置文件 -->     
    <context:property-placeholder location="classpath:properties/*.properties" />  

type的属性有

setting

<settings>  <setting name="cacheEnabled" value="true"/>  <setting name="lazyLoadingEnabled" value="true"/>  <setting name="multipleResultSetsEnabled" value="true"/>  <setting name="useColumnLabel" value="true"/>  <setting name="useGeneratedKeys" value="false"/>  <setting name="autoMappingBehavior" value="PARTIAL"/>  <setting name="autoMappingUnknownColumnBehavior" value="WARNING"/>  <setting name="defaultExecutorType" value="SIMPLE"/>  <setting name="defaultStatementTimeout" value="25"/>  <setting name="defaultFetchSize" value="100"/>  <setting name="safeRowBoundsEnabled" value="false"/>  <setting name="mapUnderscoreToCamelCase" value="false"/>  <setting name="localCacheScope" value="SESSION"/>  <setting name="jdbcTypeForNull" value="OTHER"/>  <setting name="lazyLoadTriggerMethods" value="equals,clone,hashCode,toString"/></settings>

typealiases多个处理别名

<typeAliases>  <package name="domain.blog"/></typeAliases>

插件

plugins

<!-- 配置分页插件 --><!--<plugins>   <plugin interceptor="com.github.pagehelper.PageHelper">      <property name="dialect" value="mysql"/>   </plugin></plugins>-->

mapper映射器

<!-- Using classpath relative resources --><mappers>  <mapper resource="org/mybatis/builder/AuthorMapper.xml"/>  <mapper resource="org/mybatis/builder/BlogMapper.xml"/>  <mapper resource="org/mybatis/builder/PostMapper.xml"/></mappers>

<!-- Register all interfaces in a package as mappers --><mappers>  <package name="org.mybatis.builder"/></mappers>