org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDao'问题
2017-04-03 12:03
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昨天通过Spring+springmvc+hibernate搭一个简易的页面,遇到如下问题:
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'userDao': Injection of resource dependencies failed;
nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'sessionFactory' defined in class path resource
[beans.xml]: Invocation of init method failed; nested exception is
org.hibernate.MappingException: Could not instantiate id generator
[entity-name=bigdata.model.User]
整整用了一个晚上加一个上午才解决。其实也真正是一个小问题罢了。由错误信息知道在bean.xml文件中无法正确加载sessionFactory这个bean,则有两种可能:
1.bean.xml中没加载到映射文件。
解决方法:在sessionFactory中加入
2.映射文件User.hbm.xml形式有误,所以无法正确加载。
解决办法:我的User.hbm.xml文件
大概用以上办法能解决相关问题,希望遇到对遇到这种问题的同学有所帮助。
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'userDao': Injection of resource dependencies failed;
nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'sessionFactory' defined in class path resource
[beans.xml]: Invocation of init method failed; nested exception is
org.hibernate.MappingException: Could not instantiate id generator
[entity-name=bigdata.model.User]
整整用了一个晚上加一个上午才解决。其实也真正是一个小问题罢了。由错误信息知道在bean.xml文件中无法正确加载sessionFactory这个bean,则有两种可能:
1.bean.xml中没加载到映射文件。
解决方法:在sessionFactory中加入
<!-- 映射文件目录位置 --> <property name="mappingResources"> <list> <value>bigdata/model/User.hbm.xml</value> </list> </property>
2.映射文件User.hbm.xml形式有误,所以无法正确加载。
解决办法:我的User.hbm.xml文件
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping> <class name="bigdata.model.User" table="users"> <id name="id" column="id" type="integer"> <generator class="increment" /> </id> <property name="name" type="string"> <column name="name"></column> </property> <property name="age" type="integer"> <column name="age"></column> </property> </class> </hibernate-mapping>
大概用以上办法能解决相关问题,希望遇到对遇到这种问题的同学有所帮助。
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