node.js 在 express 中使用 URL 中的多个参数
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Using multiple parameters in URL in express
提问by callmekatootie
I am using Express with Node and I have a requirement in which the user can request the URL as: http://myhost/fruit/apple/red.
我将 Express 与 Node 一起使用，并且我有一个要求，用户可以将 URL 请求为：http://myhost/fruit/apple/red。
Such a request will return a JSON response.
这样的请求将返回一个 JSON 响应。
The JSON data, before the above call looks like:
上述调用之前的 JSON 数据如下所示：
{
"fruit": {
"apple": "foo"
}
}
With the above request, the response JSON data should be:
对于上述请求，响应 JSON 数据应为：
{
"apple": "foo",
"color": "red"
}
I have configured express to route as follows:
我已将 express 配置为如下路由：
app.get('/fruit/:fruitName/:fruitColor', function(request, response) {
/*return the response JSON data as above using request.params.fruitName and
request.params.fruitColor to fetch the fruit apple and update its color to red*/
});
But this does not work. I am unsure of how to pass multiple parameters, that is, I am unsure if /fruit/:fruitName/:fruitColoris the correct way to do this. Is it?
但这不起作用。我不确定如何传递多个参数，也就是说，我不确定/fruit/:fruitName/:fruitColor这样做是否正确。是吗？
回答by chovy
app.get('/fruit/:fruitName/:fruitColor', function(req, res) {
var data = {
"fruit": {
"apple": req.params.fruitName,
"color": req.params.fruitColor
}
};
send.json(data);
});
If that doesn't work, try using console.log(req.params) to see what it is giving you.
如果这不起作用，请尝试使用 console.log(req.params) 看看它给你什么。
回答by Bandito11
For what you want I would've used
对于你想要的我会用
app.get('/fruit/:fruitName&:fruitColor', function(request, response) {
const name = request.params.fruitName
const color = request.params.fruitColor
});
or better yet
或者更好
app.get('/fruit/:fruit', function(request, response) {
const fruit = request.params.fruit
console.log(fruit)
});
where fruit is a object. So in the client app you just call
水果是一个对象。所以在客户端应用程序中，您只需调用
https://mydomain.dm/fruit/{"name":"My fruit name", "color":"The color of the fruit"}
and as a response you should see:
作为回应，您应该看到：
// client side response
// { name: My fruit name, color:The color of the fruit}
