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https://issues.apache.org/jira/browse/SCB-2422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liubao updated SCB-2422:
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Summary: change bean injection to constructor injection (was:
bean注入代码修改为constructor injection)
> change bean injection to constructor injection
> ----------------------------------------------
>
> Key: SCB-2422
> URL: https://issues.apache.org/jira/browse/SCB-2422
> Project: Apache ServiceComb
> Issue Type: Improvement
> Components: Java-Chassis
> Reporter: liubao
> Priority: Major
> Fix For: java-chassis-2.7.0
>
>
> 尽量避免使用field injection，对于必须依赖，使用 constructor-based injection，对于可选依赖，使用
> setter-based injection。这里对直接的好处是
> a. 避免循环依赖（强制校验，不要依赖spring三级缓存），我记得之前cse是出现过重构发现大量循环依赖的问题的
> b. 避免依赖为null的场景
> ref: [https://blog.marcnuri.com/field-injection-is-not-recommended]
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