ssh sessionFactory注入异常

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  今天学习ssh整合时，写完一个dao之后报了两个sessionFactory未注入dao的异常，applicationContext.xml未通过，其他dao可以通过，使用的是xml配置，检查从orm到web层，配置文件都没有发现错误。

java.lang.IllegalStateException: Failed to load ApplicationContext
	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124)
	...
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'linkManService' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: 'sessionFactory' or 'hibernateTemplate' is required
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)
	...
	... 25 more
Caused by: java.lang.IllegalArgumentException: 'sessionFactory' or 'hibernateTemplate' is required
	at org.springframework.orm.hibernate5.support.HibernateDaoSupport.checkDaoConfig(HibernateDaoSupport.java:117)
	at org.springframework.dao.support.DaoSupport.afterPropertiesSet(DaoSupport.java:44)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
	... 40 more

解决方法：配置default-autowire:byName

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
		xmlns="http://www.springframework.org/schema/beans"
		xmlns:aop="http://www.springframework.org/schema/aop" 
		xmlns:context="http://www.springframework.org/schema/context" 
		xmlns:tx="http://www.springframework.org/schema/tx" 
		xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
		http://www.springframework.org/schema/aop 
		http://www.springframework.org/schema/aop/spring-aop-4.2.xsd 
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-4.2.xsd 
		http://www.springframework.org/schema/tx 
		http://www.springframework.org/schema/tx/spring-tx-4.2.xsd "
		default-autowire="byName">