spring.net tx:advice 和 aop:config 配置事务 匹配名字的方法管理事务

  • Z时代
  • 2024-01-10
  • 分类：综合

本文内容纲要：spring.net tx:advice 和 aop:config 配置事务 匹配名字的方法管理事务

在网上找到的都是java里的配置方式，后来认真读了下spring.net的帮助文档，解决了这个问题：现在把我的server层的配置文件copy出来：

transaction-manager="transactionManager">

主要是节点的配置，表示匹配com.elitel.im.bl下所有的类及方法。

我把spring.net的帮助文档里相关的部分也copy出来：

You can also define the transactional semantics you want to apply through the use of a tx:advice definition. This lets you define the transaction metadata such as propagation and isolation level as well as the methods for which that metadata applies external to the code unlike the case of using the transaction attribute. The tx:advice definition creates an instance of a ITransactionAttributeSource during parsing time. Switching to use tx:advice instead of tx:attribute-driven/ in the example would look like the following

<tx:advice id="txAdvice" transaction-manager="transactionManager">
  <tx:attributes>
    <tx:method name="Save*"/>   
    <tx:method name="Delete*"/>  
  </tx:attributes>
</tx:advice>

This says that all methods that start with Save and Delete would have associated with them the default settings of transaction metadata. These default values are listed below..

Here is an example using other elements of the tx:method/ definition

<!-- the transactional advice (i.e. what 'happens'; see the <aop:advisor/> object below) -->
  <tx:advice id="txAdvice" transaction-manager="transactionManager">
    <!-- the transactional semantics... -->
    <tx:attributes>
      <!-- all methods starting with 'get' are read-only -->
      <tx:method name="Get*" read-only="true"/>
      <!-- other methods use the default transaction settings (see below) -->
      <tx:method name="*"/>
    </tx:attributes>
  </tx:advice>

The tx:advice/ definition reads as “... all methods on starting with 'Get' are to execute in the context of a read-only transaction, and all other methods are to execute with the default transaction semantics”. The 'transaction-manager' attribute of the tx:advice/ tag is set to the name of the PlatformTransactionManager object that is going to actually drive the transactions (in this case the 'transactionManager' object).

You can also use the AOP namespace aop:advisor element to tie together a pointcut and the above defined advice as shown below.

<object id="serviceOperation" type="Spring.Aop.Support.SdkRegularExpressionMethodPointcut, Spring.Aop">
    <property name="pattern" value="Spring.TxQuickStart.Services.*"/>
</object>
<aop:config>
    <aop:advisor pointcut-ref="serviceOperation" advice-ref="txAdvice"/>
</aop:config>

This is assuming that the service layer class, TestObjectManager, in the namespace Spring.TxQuickStart.Services. The aop:config/ definition ensures that the transactional advice defined by the 'txAdvice' object actually executes at the appropriate points in the program. First we define a pointcut that matches any operation defined on classes in the Spring.TxQuickStart.Services (you can be more selective in your regular expression). Then we associate the pointcut with the 'txAdvice' using an advisor. In the example, the result indicates that at the execution of a 'SaveTwoTestObjects' and 'DeleteTwoTestObject', the advice defined by 'txAdvice' will be run.

本文内容总结：spring.net tx:advice 和 aop:config 配置事务 匹配名字的方法管理事务

原文链接：https://www.cnblogs.com/yexinw/p/3255668.html

以上是 spring.net tx:advice 和 aop:config 配置事务 匹配名字的方法管理事务 的全部内容， 来源链接： utcz.com/z/362902.html

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