使用Node.js将信息发送到服务器并获取处理后的数据

Question

I'm trying to make an application using nodejs, express and ejs. What I'm aiming to do is submitting a form to the server, trigger a server function which processes the data to get some result, and getting my page to display the result without reloading the whole page.

Currently this is what I have:

ejs

<form method = "GET" action = "/sendinput"
...something here
</form>

app.js

app.get('/sendinput', function (req, res) {
     result = processData(req.query);
});

I manage to get the function to run when the form is submitted, but after that the page keeps loading even after the function finishes running. I'm also not sure how to fetch the result and let the form segment of the html displays it without reloading the whole page.

Answer 1

To stop the page from loading, use res.end(); it will signal the server that your function is done.

app.get('/sendinput', function (req, res) {
   result = processData(req.query);
   res.end();
});

Answer 2

因此，最后我使用Ajax解决了该问题，该问题不会提示页面重新加载并设法获得我想要的内容。