如何知道按下了哪个按钮? [英] How to know which button was pressed?

问题描述

我正在学习node.js和express框架的基础知识. 我有一个带有两个按钮的简单页面:

I'm learning the basics of node.js and express framework. I have a simple page with two buttons:

<form action="/home2" method="post">
    <button name="butt1">butt1</button>
    <button name="butt2">butt2</button>
</form>

我想在控制台中查看按下了哪个按钮:

And i want to see in console which button was pressed:

router.post('/', function(req, res, next) {
    console.log(req.body.name);
    res.render('home2', { title: 'post' });
});

在控制台中，我只是看到

In the console i just see

undefined

如何访问按钮的名称?

推荐答案

首先，因为您使用的是POST，所以我假设您已经有了body-parser中间件，如果未选中

First of all since you are using POST i am assuming you've got the body-parser middleware present, if not check Body Parser Middleware

您的代码需要进行一些更改

your code needs a few changes

以html

<form action="/home2" method="post">
    <button name="butt" value='1'>butt1</button>
    <button name="butt" value='2'>butt2</button>
</form>

速递

router.post('/home2', function(req, res, next) {
    console.log(req.body.butt);
    res.render('home2', { title: 'post' });
});

req.body.name必须为req.body.butt

/必须为/home2

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