7 集合注入使用量极低经典白雪

//BookDaoImpl
public class BookDaoImpl implements BookDao {
    private int[] array;
    private List<String> list;
    private Set<String> set;
    private Map<String,String> map;
    private Properties properties;

    public void setArray(int[] array) { this.array = array; }
    public void setList(List<String> list) { this.list = list; }
    public void setSet(Set<String> set) { this.set = set; }
    public void setMap(Map<String, String> map) { this.map = map; }
    public void setProperties(Properties properties) { this.properties = properties; }

    public void save() {
        System.out.println("book dao save ...");
        System.out.println("遍历数组:"   Arrays.toString(array));
        System.out.println("遍历List"   list);
        System.out.println("遍历Set"   set);
        System.out.println("遍历Map"   map);
        System.out.println("遍历Properties"   properties);
    }
}

<bean id="bookDao" class="com.itheima.dao.impl.BookDaoImpl">
    <!--数组注入-->
    <property name="array">
        <array>
            <value>100</value>
            <value>200</value>
            <value>300</value>
        </array>
    </property>
    
    <!--list集合注入-->
    <property name="list">
        <list>
            <value>itcast</value>
            <value>itheima</value>
            <value>boxuegu</value>
            <value>chuanzhihui</value>
        </list>
    </property>
    
    <!--set集合注入-->
    <property name="set">
        <set>
            <value>itcast</value>
            <value>itheima</value>
            <value>boxuegu</value>
            <value>boxuegu</value>
        </set>
    </property>
    
    <!--map集合注入-->
    <property name="map">
        <map>
            <entry key="country" value="china"/>
            <entry key="province" value="henan"/>
            <entry key="city" value="kaifeng"/>
        </map>
    </property>
    
    <!--Properties注入-->
    <property name="properties">
        <props>
            <prop key="country">china</prop>
            <prop key="province">henan</prop>
            <prop key="city">kaifeng</prop>
        </props>
    </property>
</bean>

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