org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.orm.ibatis.SqlMapClientFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: com.ibatis.sqlmap.engine.transaction.external.ExternalTransactionConfig Caused by: java.lang.NoClassDefFoundError: com.ibatis.sqlmap.engine.transaction.external.ExternalTransactionConfig at org.springframework.orm.ibatis.SqlMapClientFactoryBean.class$(SqlMapClientFactoryBean.java:72)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'accountDao' is defined
无法找到 accountDao,accountDao被定义在org.phrancol.osgi.jpetstore.dao里面了,于是现在需要使用spring-osgi 来进行跨bundle的引用了。
2,org.phrancol.osgi.jpetstore.dao/META-INF/spring目录中创建一个spring配置文件dataAccessContext-local-osgi.xml,使用<osgi:service>将accountDao和其他被引用的DAO注册成为OSGI Service
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'txAdvice': Cannot resolve reference to bean 'transactionManager'while setting bean property 'transactionManager'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'transactionManager' is defined
Interface that enables beans to find the bundle context they are defined in. Note that in most circumstances there is no need for a bean to implement thisinterface.
org.springframework.beans.factory.BeanCreationException: Error creating bean with name '/shop/addItemToCart.do' defined in ServletContext resource [/META-INF/dispatcher/petstore-servlet.xml]: Cannot resolve reference to bean 'petStoreOsgi'while setting bean property 'petStore'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'petStoreOsgi' is defined Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'petStoreOsgi' is defined at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:353) at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedBeanDefinition(AbstractBeanFactory.java:916) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:243) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:261) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:109) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1100)
以教员和课程为例介绍一对多关联关系,在这里认为一个教员可以叫多门课程,而一门课程只有1个教员教,这种关系在实际中不太常见,通过教员和课程是多对多的关系。
示例数据:
地址表:
CREATE TABLE ADDRESSES
(
ADDR_ID INT(11) NOT NULL AUTO_INCREMENT,
STREET VAR
In this lesson we used the key "UITextAttributeTextColor" to change the color of the UINavigationBar appearance to white. This prompts a warning "first deprecated in iOS 7.0."
Ins
质数也叫素数,是只能被1和它本身整除的正整数,最小的质数是2,目前发现的最大的质数是p=2^57885161-1【注1】。
判断一个数是质数的最简单的方法如下:
def isPrime1(n):
for i in range(2, n):
if n % i == 0:
return False
return True
但是在上面的方法中有一些冗余的计算,所以
hbase(hadoop)是用java编写的,有些语言(例如python)能够对它提供良好的支持,但也有很多语言使用起来并不是那么方便,比如c#只能通过thrift访问。Rest就能很好的解决这个问题。Hbase的org.apache.hadoop.hbase.rest包提供了rest接口,它内嵌了jetty作为servlet容器。
启动命令:./bin/hbase rest s
下面这段sql本来目的是想更新条件下的数据,可是这段sql却更新了整个表的数据。sql如下:
UPDATE tops_visa.visa_order
SET op_audit_abort_pass_date = now()
FROM
tops_visa.visa_order as t1
INNER JOIN tops_visa.visa_visitor as t2
ON t1.