Spring中常用類型的bean配置(Map,List,Set,基本類型)，springbean

Spring中常用類型的bean配置(Map,List,Set,基本類型)，springbean

給自己做個筆記...

有時會用到配置文件中配置一下映射關系,方便以後擴展.此時可采用集合類型的bean配置方式配置.程序中直接注入即可.

map類型的:

<!-- 舊版方式,無需util包 -->
<bean id="emails" class="org.springframework.beans.factory.config.MapFactoryBean">
    <property name="sourceMap">
        <map>
            <entry key="pechorin" value="[email protected]"/>
            <entry key="raskolnikov" value="[email protected]"/>
            <entry key="stavrogin" value="[email protected]"/>
            <entry key="porfiry" value="[email protected]"/>
        </map>
    </property>
</bean>

<!-- 新版方式,需util包,灰字部分可省略 -->
<util:map id="emails" map-class="java.util.TreeMap">
    <entry key="pechorin" value="[email protected]"/>
    <entry key="raskolnikov" value="[email protected]"/>
    <entry key="stavrogin" value="[email protected]"/>
    <entry key="porfiry" value="[email protected]"/>
</util:map>

List類型的:

<!-- 舊版方式 -->
<bean id="emails" class="org.springframework.beans.factory.config.ListFactoryBean">
    <property name="sourceList">
        <list>
            <value>[email protected]</value>
            <value>[email protected]</value>
            <value>[email protected]</value>
            <value>[email protected]</value>
        </list>
    </property>
</bean>

<!-- 新版方式,灰字可省 -->
<util:list id="emails"  list-class="java.util.LinkedList">
    <value>[email protected]</value>
    <value>[email protected]</value>
    <value>[email protected]</value>
    <value>[email protected]</value>
</util:list>

Set類型的:

<!-- 舊版方式 -->
<bean id="emails" class="org.springframework.beans.factory.config.SetFactoryBean">
    <property name="sourceSet">
        <set>
            <value>[email protected]</value>
            <value>[email protected]</value>
            <value>[email protected]</value>
            <value>[email protected]</value>
        </set>
    </property>
</bean>
<!-- 新版方式,灰字可省 -->
<util:set id="emails" set-class="java.util.TreeSet">
    <value>[email protected]</value>
    <value>[email protected]</value>
    <value>[email protected]</value>
    <value>[email protected]</value>
</util:set>

基本類型的(int舉例,其它同理):

<bean id="countNum" class="java.lang.Integer">  
    <constructor-arg value="5"/>  
</bean>

<bean id="countMessage" class="java.lang.String">  
    <constructor-arg value="5"/>  
</bean>