Description of the prefix "TX" for Element "Tx:advice" are not bound error

The prefix "TX" for Element "Tx:advice" are not bound

The reason for this error is very simple:

When we define AOP, we ... Schema not loaded.

The specific performance is as follows:

<beans>

<tx:advice id= "Txadvice" transaction-manager= "TransactionManager" >
<tx:attributes>
<tx:method name= "get*" read-only= "true"/>
<tx:method name= "*" propagation= "requires_new" rollback-for= "Exception"/>
</tx:attributes>
</tx:advice>

<!--AOP proxy settings-->
<aop:config proxy-target-class= "true" >
....

</aop:config>

</beans>

The exception will be thrown without recognition <TX> label. At first I thought I didn't load the jar bag.

Later, the AOP document was read to discover the name declaration of "XMLNS:AOP" to be added to the <beans> and to specify the address of an AOP configuration schema in "Xsi:schemalocation"

The configuration file is as follows:

<?xml version= "1.0" encoding= "UTF-8"?>
<beans xmlns= "Http://www.springframework.org/schema/beans"
Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"
xmlns:tx= "Http://www.springframework.org/schema/tx"
Xsi:schemalocation= "Http://www.springframework.org/schema/beans
Http://www.springframework.org/schema/beans/spring-beans.xsd
Http://www.springframework.org/schema/tx
Http://www.springframework.org/schema/tx/spring-tx.xsd
Http://www.springframework.org/schema/aop
Http://www.springframework.org/schema/aop/spring-aop.xsd ">

These are the most important places. The following configuration does not change ....

Hope to help others solve this kind of small problem