Question

ssh框架搭建，请问这个异常啥意思，找不出问题

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'productAction' defined in URL [file:/D:/program/apache-tomcat-6.0.20/webapps/TestPage/WEB-INF/classes/applicationContext.xml]: Cannot resolve reference to bean 'productService' while setting bean property 'productService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'productService' defined in URL [file:/D:/program/apache-tomcat-6.0.20/webapps/TestPage/WEB-INF/classes/applicationContext.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'productDao' of bean class [com.pb.service.impl.ProductServiceImpl]: Bean property 'productDao' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

我的application是这个
<bean id="productAction" class="com.pb.action.Action1">
<property name="productService" ref="productService" />
</bean>

<bean id="productService" class="com.pb.service.impl.ProductServiceImpl">
<property name="productDao" ref="productDao" />
</bean>

<bean id="productDao" class="com.pb.dao.impl.ProductDaoImpl">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>

<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation"
value="classpath:hibernate.cfg.xml"/>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>

<aop:config>
<aop:pointcut id="productServiceMethods"
expression="execution(* com.pb.dao.*.*(..))"/>
<aop:advisor advice-ref="txAdvice"
pointcut-ref="productServiceMethods"/>
</aop:config>

<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>

<tx:method name="*" propagation="SUPPORTS" read-only="true"/>
</tx:attributes>
</tx:advice>

Answer 1

估计是你的productDao除了问题，看看你的ProductService里用的是不是接口：ProductDao，不要在ProductService里用ProductDaoImpl
关键的问题是在这里：
Bean property 'productDao' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

追问

不好意思我没太看明白你说的意思。我的service确实是注入了dao啊。而且dao也没啥问题啊。

Answer 2

productAction 中没有productService 的set方法。 （4A电影网的搭建框架就是SSI。你可以看下）

追问

Product product;
ProductService ps;
public Product getProduct() {
return product;
}
public void setProduct(Product product) {
this.product = product;
}
public ProductService getPs() {
return ps;
}
public void setPs(ProductService ps) {
this.ps = ps;
}
有这个方法呀