在Flutter应用中获取http获取请求的URL [英] Get URL of a http get request in flutter app

问题描述

我正在尝试获取以下get请求的URL；

I am trying to get the URL of the following get request;

String url = ['url_here'];
Future<Post> fetchPost() async {
final response = await http.get(url);

if (response.statusCode == 200) {
return Post.fromJson(json.decode(response.body));
} else {
throw Exception('Failed to load post');
}
}

我得到的状态码为200.

I get a statuscode of 200.

有什么想法吗?

为澄清起见，当您在浏览器中输入网址时，它将带我到一个带有其中包含代码的网址的页面.我正在尝试提取该代码.

To clarify, When you enter the url in a browser it brings me to a page with a url that has a code in it. I am trying to extract that code.

推荐答案

followRedirects 默认情况下为 true ，我还没有找到一种方法来获取其重定向的URL这样.

followRedirects is true by default and I haven't found a way to get the URL it redirects to this way.

设置 followRedirects = false 会在 location 标头中返回新地址.

Setting followRedirects = false returns the new address in the location header.

  final url = 'http://wikipedia.net';
  final client = http.Client();
  final request = new http.Request('GET', Uri.parse(url))
    ..followRedirects = false;
  final response = await client.send(request);

  print(response.headers['location']);
  print(response.statusCode);

如果要获取重定向地址的内容，则可以使用来自 location 的URL或仅使用默认值( followRedirects = true )发送新请求.

If you want to fetch the content of the redirect address, you can send a new request with the URL from location or just with the default (followRedirects = true)

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