前言
在认识BeanDefinitionRegistryPostProcessor
和 ClassPathBeanDefinitionScanner
之前,需要说明一下为什么会有这篇文章?动态注册Bean
?日常开发中我们有太多方式来定义注册Bean
实例到Spring
容器中:
To make processing more robust and less prone to failure, it sometimes helps to automatically retry a failed operation, in case it might succeed on a subsequent attempt. Errors that are susceptible to this kind of treatment are transient in nature. For example, a remote call to a web service or an RMI service that fails because of a network glitch or a
DeadLockLoserException
in a database update may resolve itself after a short wait. To automate the retry of such operations, Spring Retry has theRetryOperations
strategy.
日常开发中,我们无法避免在调用远程Web服务时候因为网络故障或数据库死锁等原因导致的调用失败,有时候这些故障会在短暂的等待后自行恢复,而为了自动重试这些操作,我们可以选择引入 Spring Retry .
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