问题描述
我有一个通用类型,我注入服务。由于泛型在Java中的实现方式,我需要一个构造函数arg(或属性setter)来保存泛型类型参数的Class信息。
I have a generic type that I am injecting into a service. Because of the way generics are implemented in Java, I need to have a constructor arg (or property setter) that holds the Class information of the generic type parameter.
我的问题是 - 我可以通过属性注入或指定构造函数arg传入带弹簧的Class实例吗?
My question is -- Can I, via property injection or specifying a constructor arg, pass in an instance of Class with spring?
我知道运行时间之前的T类型所以我特别知道Type参数是什么。
I DO know the type of T before run time so I know specifically what the Type parameter will be.
我认为它看起来像这样:
I was thinking it would look something like this:
<bean id="dataMartService" class="com.someclass">
<constructor-arg value="java.lang.class<com.someotherclass>" />
</bean>
我完全不知道应该怎么做?
Am I completely off in how this should happen?
推荐答案
尝试:
<bean id="dataMartService" class="com.someClass">
<constructor-arg>
<value type="java.lang.Class">someotherclass</value>
</constructor-arg>
</bean>
这篇关于传递“HardCoded”构造函数Arg类< T>通过Spring Config来bean的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!