如何在express.js中嵌套表单数据? [英] How to get nested form data in express.js?
问题描述
< p>在Rails中,如果您有一个带有下划线的表单,它将在params中采用嵌套的布局结构: input type =textname =person_first/>
< input type =textname =person_last/>
在服务器上,您将得到:
params#=> {person:{first:Tom,last:Hanks}}
当我在node.js中使用Express.js,bodyparser似乎并没有做同样的事情。看看bodyparser的代码,它只是运行JSON解析器,导致:
params#=> {person_first:Tom,person_last:Hanks}}
有没有办法可以得到嵌套表单数据,像在Rails中,当我使用Express?有没有可以让我这样做的图书馆?
如果你使用 express.bodyParser
可以使用数组表示法传递嵌套数据。
添加 express.bodyParser
你的控制器。
app.use(express.bodyParser());
现在您可以在html代码中使用此符号:
< input type =textname =person [first]/>
< input type =textname =person [last]/>
或
< input type =textname =person [name] [first]/>
< input type =textname =person [name] [last]/>
Express 4的更新
这里是设置 extension:true
app.use(bodyParser.urlencoded ({
extended:true
}));
In Rails, if you have a form with underscores, it will assume a nested layout structure in params:
<input type="text" name="person_first" />
<input type="text" name="person_last" />
On the server, you'll get:
params #=> { person: { first: "Tom", last: "Hanks" } }
When I'm using Express.js in node.js, bodyparser doesn't seem to do the same thing. Looking at the code for bodyparser, it just runs the JSON parser on it, resulting in:
params #=> { person_first: "Tom", person_last: "Hanks" } }
Is there some way I can get the nested form data, like in Rails, when I'm using Express? Is there a library that enables me to do this?
If you are using express.bodyParser
you can use array notation to pass nested data.
Add express.bodyParser
middleware before your controllers.
app.use(express.bodyParser());
Now you can use this notation in your html code:
<input type="text" name="person[first]" />
<input type="text" name="person[last]" />
or
<input type="text" name="person[name][first]" />
<input type="text" name="person[name][last]" />
Update for Express 4
The key here is setting extended: true
app.use(bodyParser.urlencoded({
extended: true
}));
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