Question

ssh 一个项目多个数据库

我找到例子，SPRING 配置如下：

<bean id="sessionFactoryCars"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation" value="classpath:hibernate.cars.cfg.xml" />
</bean>

<!-- car beans -->
<bean id="carsDao" class="cars.dao.CarsDao">
<property name="sessionFactory" ref="sessionFactoryCars"/>
</bean>

<!-- -->
<bean id="carsService" class="cars.service.CarsService">
<property name="dao" ref="dao"></property>
</bean>
<bean id="capply" class="cars.action.Apply" >
<property name="carsService" ref="carsService"></property>
</bean>
-------------------

<!-- user Factory -->

<bean id="sessionFactoryUser"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation" value="classpath:hibernate.user.cfg.xml" />
</bean>
<!-- user beans -->
<bean id="userAct" class="pub.user.action.UserManager" scope="prototype"><!-- singleton -->
<property name="userService" ref="userService"></property>
</bean>

<bean id="userService" class="pub.user.service.UserManagerService">
<property name="dao" ref="dao"></property>
</bean>
<bean id="dao" class="pub.user.dao.BaseDao">
<property name="sessionFactory" ref="sessionFactoryUser"/>
</bean>
------------
启动一直出错：
Error creating bean with name 'carsService' defined in ServletContext resource [/WEB-INF/applicationContextCars.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'dao' of bean class [cars.service.CarsService]: Bean property 'dao' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
第二个贴错了，是以下：
<!-- car Factory -->
<bean id="sessionFactoryCars"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation" value="classpath:hibernate.cars.cfg.xml" />
</bean>

<!-- car beans -->
<bean id="carsDao" class="cars.dao.CarsDao">
<property name="sessionFactory" ref="sessionFactoryCars"/>
</bean>

<bean id="carsService" class="cars.service.CarsService">
<property name="carsDao" ref="carsDao"></property>
</bean>
<bean id="capply" class="cars.action.Apply" >
<property name="carsService" ref="carsService"></property>
</bean>
============================
可能是我没有说明清楚，不过问题我已经解决，是JAVABEAN里没写SETTER方法。

Answer 1

/applicationContextCars.xml
应该是这个配置文件中有地方没有配置对，或者是你没有配置的

恩，对，是那个样子的
[cars.service.CarsService]: Bean property 'dao' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
这两句就可以看出来的。

Answer 2

把
<bean id="dao" class="pub.user.dao.BaseDao">
<property name="sessionFactory" ref="sessionFactoryUser"/>
</bean>
这个放到
<bean id="carsDao" class="cars.dao.CarsDao">
<property name="sessionFactory" ref="sessionFactoryCars"/>
</bean>
前面试试

追问

能说一下原因吗？

追答

这样可以解决吗。因为我好像遇到类似问题，就是这样解决的。因为我觉得dao是其它dao的父类。所以必须先设定父类

Answer 3

神马意思？

Answer 4

什么问题

Answer 5

启动一直出错说明你的配置里出错了，看下你的web。xml