复杂类型注入

待我称王封你为后i 2024-04-06 13:00 67阅读 0赞

复杂类型注入  
对象 ref

数组

list

map

properties

<props>
    
      <prop key="">value</prop>
    
    </props>

测试代码：

1)定义一个类，属性是各种复杂类型

public class AA \{

private int[] arr;
    
    private Drink[] drinkArr;
    
    private List<String> stringList;
    
    private List<Drink> drinkList;
    
    private Map<String,Drink> map;
    
    private Properties properties;
        
        。。。
       set和get方法
       --
       }

注入

<bean id="aa" class="com.test.pojo.AA">
        <property name="arr">
            <array>
                <value>1</value>
                <value>2</value>
                <value>3</value>
            </array>
        </property>
    
        <property name="drinkArr">
            <array>
                <ref bean="drink_01" />
                <ref bean="drink_02" />
            </array>
        </property>
    
        <property name="stringList">
            <list>
                <value>tom</value>
                <value>jack</value>
                <value>tony</value>
            </list>
        </property>
    
        <property name="drinkList">
            <list>
                <ref bean="drink_01" />
                <ref bean="drink_02" />
            </list>
        </property>
    
        <property name="map">
            <map>
                <entry key="first" value-ref="drink_01" />
                <entry key="second" value-ref="drink_02"  />
            </map>
        </property>
    
        <property name="properties">
            <props>
                <prop key="driver" >com.mysql.jdbc.Driver</prop>
                <prop key="url" >jdbc:mysql://localhost:3306/taobao</prop>
            </props>
        </property>
    
    </bean>