发表新帖

发表新帖

Express' render/redirect does not work if the call isn't coming from a submit method in a form

后端未结

关注

 1  1223

Task

Perform a POST request from a JS method, so that variable values can be sent as parameters.

Environment

NodeJS
Express

相关标签:

1条回答

情歌与酒

2021-01-14 00:38
I'm not a jQuery expert, but I think the first attempt doesn't work because $.post makes an AJAX request, the same way as you would in a single-page app to interact with an API in the background.

Your second example submits a form, which is an in-browser action that performs a navigation action (as specified by the method attribute of the form). In this case, the event listener you add in jQuery is redundant, and should be removed - it's making another background POST request, before the form submits the content of its fields in its request.

As for your second question, the way to submit additional variables with a form submission (presuming that you actually want to do a navigating form submission and not an XHR background request against an API) is to use <input type="hidden"> elements.

So, to summarize, to do what you're describing in your question, your example HTML should look like this (minus the comments):
```
<!DOCTYPE html> 
<html>
  <head>
    <meta charset="UTF-8"> 
  </head>
  <body>
    <form action='/vote' method='post'>
      <input type="hidden" name="message" value="hello!">
      <button id='send' type='submit' class='btn btn-success btn-xs'>Svara</button>
    </form>
  </body>
</html>
```
0 讨论(0)
发布评论:

提交评论
- 加载中...

热议问题