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Posted to commits@servicecomb.apache.org by GitBox <gi...@apache.org> on 2021/04/23 08:27:43 UTC

[GitHub] [servicecomb-java-chassis] tiger-super opened a new issue #2359: standalone和servlet两种模式下的HttpServerFilter

tiger-super opened a new issue #2359:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2359


   我实现了一个HttpServerFilter，主要抽取部分报文的数据放入context。
   ![image](https://user-images.githubusercontent.com/32871618/115842381-5a0be500-a450-11eb-8435-0facd01add5a.png)
   在standalone是可以正常获取到请求报文
   ![image](https://user-images.githubusercontent.com/32871618/115842702-ab1bd900-a450-11eb-9516-d8ad170c8a5b.png)
   但在servlet获取的报文却为null
   ![image](https://user-images.githubusercontent.com/32871618/115842744-b53dd780-a450-11eb-82ec-9c595abbb4b4.png)
   请问在servlet是要如何实现


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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #2359: standalone和servlet两种模式下的HttpServerFilter

Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #2359:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2359#issuecomment-826187681


   这种用户会破坏java-chassis的设计约束，接口定义和实际客户请求不一致。 这个不属于产品支持的使用范围了，需要开发者自行根据版本迭代和测试确保正确性，里面的实现可能会发生变化。 通常来讲， body是只读的，在处理过程中修改他的值的处理方式是不可靠的。


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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #2359: standalone和servlet两种模式下的HttpServerFilter

Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #2359:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2359#issuecomment-825499459


   实现 httpServerFileter的时候，注意实现 `needCacheRequest` 方法， 返回 true。 servlet的流只能读取一次，需要显示的缓存，避免多次读取。 


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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #2359: standalone和servlet两种模式下的HttpServerFilter

Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #2359:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2359#issuecomment-826187681


   这种用户会破坏java-chassis的设计约束，接口定义和实际客户请求不一致。 这个不属于产品支持的使用范围了，需要开发者自行根据版本迭代和测试确保正确性，里面的实现可能会发生变化。 通常来讲， body是只读的，在处理过程中修改他的值的处理方式是不可靠的。


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[GitHub] [servicecomb-java-chassis] tiger-super commented on issue #2359: standalone和servlet两种模式下的HttpServerFilter

Posted by GitBox <gi...@apache.org>.
tiger-super commented on issue #2359:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2359#issuecomment-825546377


   > 实现 httpServerFileter的时候，注意实现 `needCacheRequest` 方法， 返回 true，并显示的读取流 `getInputSteam`，然后流的内容会缓存到bodyBuffer里面。 servlet的流只能读取一次，需要显示的缓存，避免多次读取。
   
   请问一下这个报文怎么改，因为是发过来的是xml我想转成json格式，目前我是这样实现，发现不行controller接收到还是xml
   ![image](https://user-images.githubusercontent.com/32871618/115854969-59c61680-a45d-11eb-9c35-eecc6b3c77f4.png)
   


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[GitHub] [servicecomb-java-chassis] liubao68 edited a comment on issue #2359: standalone和servlet两种模式下的HttpServerFilter

Posted by GitBox <gi...@apache.org>.
liubao68 edited a comment on issue #2359:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2359#issuecomment-825499459


   实现 httpServerFileter的时候，注意实现 `needCacheRequest` 方法， 返回 true，并显示的读取流 `getInputSteam`，然后流的内容会缓存到bodyBuffer里面。 servlet的流只能读取一次，需要显示的缓存，避免多次读取。 


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