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Posted to commits@servicecomb.apache.org by GitBox <gi...@apache.org> on 2019/12/30 16:31:16 UTC
[GitHub] [servicecomb-java-chassis] zhufeizzz opened a new issue #1505: 怎么自定义Jackson的ObjectMapper？
zhufeizzz opened a new issue #1505: 怎么自定义Jackson的ObjectMapper？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1505
我想做两件事：
1、支持org.json的转换
2、把所有Rest接口默认使用下划线方式
没找到相关文档，扒代码找到如下方式设置：
```
JsonUtils.OBJ_MAPPER.registerModule(new JsonOrgModule());
JsonUtils.OBJ_MAPPER.setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE);
RestObjectMapperFactory.getRestObjectMapper().registerModule(new JsonOrgModule());
RestObjectMapperFactory.getRestObjectMapper().setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE);
```
我试了下org.json支持没问题，但是SNAKE_CASE会导致ServiceComb无法启动，提示微服务命名格式不对。
我这是标准的扩展ObjectMapper的方式吗？扩展的时候到底有什么限制？
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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #1505: 怎么自定义Jackson的ObjectMapper？
Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #1505: 怎么自定义Jackson的ObjectMapper？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1505#issuecomment-569840277
你需要使用RestObjectMapperFactory setConsumerWriterMapper 和 setDefaultRestObjectMapper覆盖AbstractRestObjectMapper，需要先自定义一个实现。
通常，不推荐自定义，这个会导致不同的系统之间相互协作出现问题，或者在a -> b -> c等场景下，容易出现错误。 仅仅在需要兼容的情况下，做适当的处理，否则建议改善接口设计，遵循标准行为是推荐的方式。
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[GitHub] [servicecomb-java-chassis] zhufeizzz commented on issue #1505: 怎么自定义Jackson的ObjectMapper？
Posted by GitBox <gi...@apache.org>.
zhufeizzz commented on issue #1505: 怎么自定义Jackson的ObjectMapper？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1505#issuecomment-569845820
1、有没有文档定义哪些行为能改，判断原则有吗？比如我现在改了，目测能运行，但是不知道有没有什么坑。
2、setConsumerWriterMapper是什么场景用的，调试时没看到有地方使用。
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