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188080501 avatar 188080501 commented on July 3, 2024

你要返回自定义的HTTP错误码吗?

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joe-ieta avatar joe-ieta commented on July 3, 2024

你好,就是想在setHttpAcceptedCallback( std::bind(onHttpAccepted, std::placeholders::_1 ) )设置的回调函数中进行一些特别处理,比如,返回图片,当磁盘文件不存在时,希望返回自己的错误码(或信息)。不是修改HTTP的错误码,就是希望返回更多错误的细节,不知道怎么实现?谢谢!另外是否可以增加一个支持html静态页面的返回类型?

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188080501 avatar 188080501 commented on July 3, 2024

http这边有这几个方式来返回你的错误
通过http错误码
返回的header
返回的body

一般来说不会用header来包含错误信息,都是用http错误码配合body的内容(例如json)
这时你用replyJsonObject接口就行了,里面可以尽可能多的包含你需要返回的信息

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joe-ieta avatar joe-ieta commented on July 3, 2024

谢谢!
另外再请教一个问题,就是在setHttpAcceptedCallback( std::bind(onHttpAccepted, std::placeholders::_1 ) ) 中,onHttpAccepted函数是一个全局静态函数,大量的并发访问时,该函数时运行在各个SESSION的线程中的吗?在该函数这里有没有性能或并发问题?
谢谢!

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188080501 avatar 188080501 commented on July 3, 2024

这里传进去的是一个回调,写lambda也可以,不一定是全局的
处理回调有专用的线程,不是socket的生存线程,具体开几个线程是可以设置的
性能问题的话,只能说够用,要做上万QPS会有压力,10万以上受限于Qt这里做不到

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joe-ieta avatar joe-ieta commented on July 3, 2024

感谢!通过增加一个回调函数等方法,处理了地图数据tms的高效率访问以及错误处理,用于GIS数据发布成WTMS协议,在工程环境中已经够用了。再次感谢!

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