我需要在res.send()之后调用next()吗? [英] Do I need to call next() after res.send()?

问题描述

如果我调用了 res.send()，但没有调用 next():

If I called res.send(), but didn't call next():

1. 此中间件之后的任何中间件都不会执行.
2. 如果该中间件不是最后一个中间件，则该请求将永远挂起"，并且不会被垃圾回收，因为它仍在等待 next()的调用./li>

以上是我试图说我应该始终调用 next()的说法，对吗?

The above is my attempt to argue that I should always call next(), is it true?

推荐答案

您无需调用 next()即可完成发送响应. res.send()或 res.json()应该结束所有对响应流的写入并发送响应.

You don't need to call next() to finish sending the response. res.send() or res.json() should end all writing to the response stream and send the response.

但是，如果您想在发送响应后做进一步处理，您绝对可以调用 next()，只需确保您不写响应即可您调用 res.send()之后的流.

However, you absolutely can call next() if you want to do further processing after the response is sent, just make sure you don't write to the response stream after you call res.send().

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