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Mybatis從入門到精通下篇

Mybatis從入門到精通下篇:

 

輸入型別:

輸出型別:

ResultMap:

 

動態sql:

 

 

 

if標籤:

where標籤:

 

 

sql片段:

 

foreach標籤:

 

 

關聯查詢:

 

 

 

以訂單作為主體:

一對一查詢:

 

新建pojo:

 

 

以user為主體:

一對多關聯:

 

 

 

Mybatis整合Spring:

 

配置檔案:SqlMapConfig.xml:

 

載入對映檔案(其他都不用):

 

ApplicationContext:(很關鍵)

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

    <!-- 載入配置檔案 -->
    <context:property-placeholder location="classpath:Config/db.properties" />

    <!-- 資料庫連線池 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
          destroy-method="close">
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <!-- 連線池的最大資料庫連線數 -->
        <property name="maxActive" value="10" />
        <!-- 最大空閒數 -->
        <property name="maxIdle" value="5" />
    </bean>

    <!-- SqlSessionFactory配置 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 載入mybatis核心配置檔案 -->
        <property name="configLocation" value="classpath:Config/SqlMapConfig.xml" />
        <!-- 別名包掃描 -->
        <property name="typeAliasesPackage" value="pojo"/>
    </bean>

    <!-- 傳統Dao配置,載入實現類 -->
    <bean class="dao.impl.UserDaoImpl">
        <property name="sqlSessionFactory" ref="sqlSessionFactory" />
    </bean>
  </beans>

 

 

Dao開發:

 

 

推薦下面這種方式:

原始碼下載:https://github.com/linhj-james/springMybatis

可以的話幫忙star一下,謝謝~