我正在尝试通过SpEL过滤xml配置文件中的列表集合
这是我的课程
public class PCCollection implements MarketPC {
private Collection<PersonalComputer> pcCollection;
public PCCollection(Collection<PersonalComputer> pcCollection) {
this.pcCollection = pcCollection;
} ...
}
这是此类和填充集合的
<bean id="marketPC" class="PCCollection">
<constructor-arg name="pcCollection">
<list>
<ref bean="customPC"/>
<bean class="MyCustomPC" scope="prototype">
<constructor-arg name="mother" ref="msiMother"/>
<constructor-arg name="processor" ref="asusProcessor"/>
<constructor-arg name="storage" ref="gigabyteStorage"/>
<constructor-arg name="ram" ref="gigabyteRam"/>
<constructor-arg name="video" ref="asusVideo"/>
</bean>
</list>
</constructor-arg>
</bean>
和customPC类
public class MyCustomPC implements PersonalComputer {
private MotherBoard mother;
private Processor processor;
private Ram ram;
private StorageDevice storage;
private VideoCard video;
....}
当我尝试创建具有用于过滤第一个bean的表达式的bean
<bean id="marketPCASUS" class="PCCollection">
<constructor-arg name="pcCollection"
value = "#{marketPC.pcCollection.?[video eq 'asusVideo']}">
</constructor-arg>
</bean>
我正在接收异常
Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1008E: Property or field 'pcCollection' cannot be found on object of type 'PCCollection' - maybe not public or not valid?
这有什么问题?我试图用Google搜索它,但是所有答案都使用了注释,但是在此之前,我想了解如何在配置文件中工作。
答案 0 :(得分:0)
可能不公开或无效?
您应该为pcCollection
创建名为getPcCollection
的get方法