Java Spring:NotWritablePropertyException

应用程序上下文

MockFactoryBean.java

公共类MockFactoryBean实现FactoryBean{
私人阶级类型；
公共void集合类型（类类型）{
this.type=type；
}
@凌驾
public T getObject（）引发异常{
返回Mockito.mock（type）；
}
@凌驾
公共类getObjectType（）{
返回类型；
}
@凌驾
公共布尔isSingleton（）{
返回true；
}
}

例外情况：

org.springframework.beans.NotWritablePropertyException:无效 bean类的属性“processor” [test.spring.MockFactoryBean]：Bean属性“processor”为 不可写或具有无效的setter方法。参数类型是否正确 setter的返回类型是否与getter的返回类型匹配

---

当您声明一个

FactoryBean

时，Spring希望您配置

FactoryBean

的属性，而不是它创建的对象的属性

请尝试以下操作：

<bean id="contentRegisteringBean" parent="abstractRegisteringBean" lazy-init="false">
    <!-- Define concrete class to pass to Mockito.mock() -->
    <constructor-arg value = "com.somepackage.ProcessorRegisteringBeanImpl" />

    <property name="processor">
        <bean class="com.somepackage.ContentService$Processor"/>
    </property>
</bean>

<!-- Abstract definition of beans created using Mockito.mock() -->
<bean id="abstractRegisteringBean" abstract = "true"
     class="org.mockito.Mockito" factory-method = "mock">
</bean>

什么是

MockFactoryBean

？@axtavt查看更新的问题，并提供更多解释。为什么？

public class ProcessorRegisteringBeanImpl {
    private Processor mProcessor;


    public Processor getProcessor() {
        return mProcessor;
    }

    public void setProcessor(final Processor processor) {
        mProcessor = processor;
    }
}

public class MockFactoryBean<T> implements FactoryBean<T> {
    private Class<T> type;

    public void setType(Class<T> type) {
        this.type = type;
    }

    @Override
    public T getObject() throws Exception {
        return Mockito.mock(type);
    }

    @Override
    public Class<T> getObjectType() {
        return type;
    }

    @Override
    public boolean isSingleton() {
        return true;
    }

}

<bean id="contentRegisteringBean" parent="abstractRegisteringBean" lazy-init="false">
    <!-- Define concrete class to pass to Mockito.mock() -->
    <constructor-arg value = "com.somepackage.ProcessorRegisteringBeanImpl" />

    <property name="processor">
        <bean class="com.somepackage.ContentService$Processor"/>
    </property>
</bean>

<!-- Abstract definition of beans created using Mockito.mock() -->
<bean id="abstractRegisteringBean" abstract = "true"
     class="org.mockito.Mockito" factory-method = "mock">
</bean>