Node.js 服务器中收到的 POST 数据以未定义形式返回给客户端
我开始学习node.js。我正在关注本教程，并且遇到了一个问题：某些 POST 数据被正确接收，但在返回时对于客户端来说，它变得“未定义”。
下面是获取 POST 数据的代码（顺便说一句，这是 Coffeescript）：
postData = ""
request.setEncoding "utf8"
request.addListener "data", (postDataChunk) ->
postData += postDataChunk
console.log "Received POST data chunk '" + postDataChunk + "'."
request.addListener "end", ->
console.log "postData at end: " + postData
POST = qs.parse postData
console.log POST
route handle, pathname, response, POST.text
POST 文本与响应对象一起发送到路由函数。那里的代码是：
upload = (response, postData) ->
console.log "Request handler 'upload' was called"
console.log "post data in upload: " + postData
response.writeHead 200, "Content-Type": "text/plain"
response.end "You sent: " + postData
在控制台输出中，PostData 设置正确，但是当我在浏览器中查看输出时，它总是显示“您发送：未定义”
任何人都可以帮助我理解出了什么问题吗？
I'm starting to learn node.js. I'm following this tutorial and I've run into a problem where some POST data is received properly but when it's returned to the client, it becomes "undefined".
Here's the code for grabbing the POST data (this is Coffeescript btw):
postData = ""
request.setEncoding "utf8"
request.addListener "data", (postDataChunk) ->
postData += postDataChunk
console.log "Received POST data chunk '" + postDataChunk + "'."
request.addListener "end", ->
console.log "postData at end: " + postData
POST = qs.parse postData
console.log POST
route handle, pathname, response, POST.text
The POST text is sent to a routing function along with the response object. The code there is:
upload = (response, postData) ->
console.log "Request handler 'upload' was called"
console.log "post data in upload: " + postData
response.writeHead 200, "Content-Type": "text/plain"
response.end "You sent: " + postData
In the console output, PostData is set correctly but when I view the output in the browser it'll always say "You sent: undefined"
Can anyone help me understand what's going wrong?
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您需要查看
end回调中的 POST.text。执行console.dir POST而不是console.log POST，并查看 POST 对象是否定义了名为text的属性。我的猜测是事实并非如此。如果不是，请记录原始 postData 字符串并查看它是否不是您所期望的。You need to look at POST.text inside the
endcallback. Instead ofconsole.log POST, doconsole.dir POSTand see if the POST object has a property namedtextdefined. My guess is it does not. If not, log the raw postData string and see if it is not what you expect.