Spring依存注入,P名前空間,SpEL式超入門事例
30469 ワード
springのプロファイルを通して、P名前空間とよく使われるSpring EL表現を含むspringの依存注入方式と書き方を示した.
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="user" class="com.itheima.domain.User">
<constructor-arg name="userName" value=" ">constructor-arg>
<constructor-arg name="userId" value="186658056">constructor-arg>
<constructor-arg name="password" value="123">constructor-arg>
bean>
<bean id="iUserDao" class="com.itheima.dao.impl.UserDaoImpl">
<constructor-arg name="id" value="001"/>
<constructor-arg name="user" ref="user"/>
bean>
<bean id="user01" class="com.itheima.domain.User">
<property name="userName" value="zhangsan">property>
<property name="userId" value="123123">property>
<property name="password" value="4352">property>
bean>
<bean id="iUserDao01" class="com.itheima.dao.impl.UserDaoImpl">
<property name="id" value="002"/>
<property name="user" ref="user01">property>
bean>
<bean id="collection" class="com.itheima.dao.impl.UserDaoImpl">
<property name="id" value="002">property>
<property name="user" ref="user01">property>
<property name="list">
<list>
<ref bean="user01">ref>
<ref bean="user02">ref>
list>
property>
<property name="map">
<map>
<entry key="001" value-ref="user01">entry>
<entry key="002" value-ref="user02">entry>
map>
property>
bean>
<bean id="user02" class="com.itheima.domain.User" p:userName="wangwu" p:userId="3453" p:password="213">bean>
<bean id="iUserDao02" class="com.itheima.dao.impl.UserDaoImpl" p:id="002" p:user-ref="user02">bean>
<bean id="iUserDao03" class="com.itheima.dao.impl.UserDaoImpl">
<property name="id" value="002"/>
<property name="user" value="#{user02}">property>
bean>
<bean id="iUserDao04" class="com.itheima.dao.impl.UserDaoImpl">
<property name="id" value="#{user02.userId}"/>
<property name="user" value="#{user02}">property>
bean>
<bean id="iUserDao05" class="com.itheima.dao.impl.UserDaoImpl">
<property name="id" value="#{user02.action().toLowerCase()}"/>
<property name="user" value="#{user02}">property>
bean>
<bean id="iUserDao06" class="com.itheima.dao.impl.UserDaoImpl">
<property name="id" value="#{T(java.lang.Math).random()}"/>
<property name="user" value="#{user02}">property>
bean>
beans>