spring多数据源错误，求解决。

Question

web.xml配置了，两个spring的配置文件。
<init-param>
 <param-name>contextConfigLocation</param-name>
 <param-value>
 classpath:app-config.xml,classpath:mvc-config.xml,classpath:happ-config.xml
 </param-value>
</init-param>app-config.xml的配置:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:cache="http://www.springframework.org/schema/cache"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="http://www.springframework.org/schema/beans 
                        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
                        http://www.springframework.org/schema/context 
                        http://www.springframework.org/schema/context/spring-context-3.0.xsd
                        http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.0.xsd
                        http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/cache
http://www.springframework.org/schema/cache/spring-cache.xsd">
<context:component-scan base-package="com.pazx" 
 annotation-config="false" />
<context:property-placeholder
location="classpath:hibarnate.properties" />
<context:annotation-config />
<aop:aspectj-autoproxy />
<!-- data source -->
<bean id="hdataSource"
class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${jdbc.driverClass}" />
<property name="jdbcUrl" value="${jdbc.jdbcUrl}" />
<property name="user" value="${jdbc.user}" />
<property name="password" value="${jdbc.password}" />
</bean>
<!-- session factory -->
<bean id="sessionFactory2"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="hdataSource" />
<property name="packagesToScan" value="com.pazx.entity.**" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">
${hibernate.hbm2ddl.auto}
</prop>
<prop key="hibernate.format_sql">
${hibernate.format_sql}
</prop>
<prop key="hibernate.show_sql">
${hibernate.show_sql}
</prop>
<prop key="hibernate.dialect">
${hibernate.dialect}
</prop>
<prop key="hibernate.generate_statistic">
true
</prop>
</props>
</property>
</bean>


</beans>
happ-config.xml的配置文件:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:cache="http://www.springframework.org/schema/cache"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="http://www.springframework.org/schema/beans 
                        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
                        http://www.springframework.org/schema/context 
                        http://www.springframework.org/schema/context/spring-context-3.0.xsd
                        http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.0.xsd
                        http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/cache
http://www.springframework.org/schema/cache/spring-cache.xsd">
<context:component-scan base-package="com.pazx" 
 annotation-config="false" />
<context:property-placeholder
location="classpath:hibarnate.properties" />
<context:annotation-config />
<aop:aspectj-autoproxy />
<!-- data source -->
<bean id="hdataSource"
class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${jdbc.driverClass}" />
<property name="jdbcUrl" value="${jdbc.jdbcUrl}" />
<property name="user" value="${jdbc.user}" />
<property name="password" value="${jdbc.password}" />
</bean>
<!-- session factory -->
<bean id="sessionFactory2"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="hdataSource" />
<property name="packagesToScan" value="com.pazx.entity.**" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">
${hibernate.hbm2ddl.auto}
</prop>
<prop key="hibernate.format_sql">
${hibernate.format_sql}
</prop>
<prop key="hibernate.show_sql">
${hibernate.show_sql}
</prop>
<prop key="hibernate.dialect">
${hibernate.dialect}
</prop>
<prop key="hibernate.generate_statistic">
true
</prop>
</props>
</property>
</bean>


</beans>
报错：  org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'daoSupport': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.hibernate.SessionFactory] is defined: expected single matching bean but found 2: [sessionFactory, sessionFactory2]

Answer 1

配一个就可以了，在happ-config.xml里面配置数据远，同时加一个<import resource="app-config.xml">,这样在app-config.xml里面就可以使用happ-config.xml里面的数据源了。试试吧

Answer 2

我看你上下两个SessionFactory的ID都是sessionFactory2啊，重名了么！

Answer 3

补步判断是注入的时候报错了：1.daoSupport在哪里？2.expected single matching bean but found 2（期望一个bean与之匹配，但是，找到了两个）