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扩展EnvironmentPostProcessor从数据库加载配置项&spring.factories
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Nov. 25, 2022, 2:39 a.m.
Summary
扩展EnvironmentPostProcessor从数据库加载配置项&spring.factories应用未接入配置中心时,一些配置项(如oss存储配置信息、邮件服务配置信息等)需要从其它数据源获取,下面以从数据库获取配置信息为例。@Value既然需要通过从数据库中读取配置信息,那么先了解一下@Value的工作原理:SpringBoot应用启动org.springframework.boot.SpringApplication#run(java.lang.Class<?>, java.lang.String...) => org.springframework.boot.SpringApplication#run(java.lang.String...) => 刷新Spring容器org.springframework.boot.SpringApplication#refreshContext => org.springframework.context.support.AbstractApplicationContext#refresh实例化Beanorg.springframew...
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