当前位置 : 首页 » 文章分类 :  开发  »  Spring-集合注入

Spring-集合注入

Spring集合框架注入实例

Java代码:

import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

public class Customer
{
    private List<Object> lists;
    private Set<Object> sets;
    private Map<Object, Object> maps;
    private Properties pros;

    //...
}

Spring配置:

<beans xmlns="http://www.springframework.org/schema/beans"
    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-2.5.xsd">

    <bean id="CustomerBean" class="com.mkyong.common.Customer">

        <!-- java.util.List -->
        <property name="lists">
            <list>
                <value>1</value>  <!-- 元素为字符串 -->
                <ref bean="PersonBean" /> <!-- 元素为其他bean的引用 -->
                <!-- 元素为bean -->
                <bean class="com.mkyong.common.Person">
                    <property name="name" value="mkyongList" />
                    <property name="address" value="address" />
                    <property name="age" value="28" />
                </bean>
            </list>
        </property>

        <!-- java.util.Set -->
        <property name="sets">
            <set>
                <value>1</value>  <!-- 元素为字符串 -->
                <ref bean="PersonBean" /> <!-- 元素为其他bean的引用 -->
                <!-- 元素为bean -->
                <bean class="com.mkyong.common.Person">
                    <property name="name" value="mkyongSet" />
                    <property name="address" value="address" />
                    <property name="age" value="28" />
                </bean>
            </set>
        </property>

        <!-- java.util.Map -->
        <property name="maps">
            <map>
                <!-- key键为String key-ref键为其他bean的引用 -->
                <!-- value值为String value-ref值为其他bean的引用 -->
                <entry key="Key 1" value="1" />
                <entry key="Key 2" value-ref="PersonBean" />
                <entry key="Key 3">
                    <bean class="com.mkyong.common.Person">
                        <property name="name" value="mkyongMap" />
                        <property name="address" value="address" />
                        <property name="age" value="28" />
                    </bean>
                </entry>
            </map>
        </property>

        <!-- java.util.Properties -->
        <property name="pros">
            <props>
                <prop key="admin">admin@nospam.com</prop>
                <prop key="support">support@nospam.com</prop>
            </props>
        </property>

    </bean>

    <bean id="PersonBean" class="com.mkyong.common.Person">
        <property name="name" value="mkyong1" />
        <property name="address" value="address 1" />
        <property name="age" value="28" />
    </bean>

</beans>

参考:

上一篇 JDK-Tools-概览

下一篇 Google-Gson

阅读
370
阅读预计2分钟
创建日期 2016-05-18
修改日期 2018-06-11
类别
百度推荐