Nodejs：重定向 URL
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Nodejs : Redirect URL
提问by Adam
I'm trying to redirect the url of my app in node.js in this way:
我正在尝试以这种方式在 node.js 中重定向我的应用程序的 url：
// response comes from the http server
response.statusCode = 302;
response.setHeader("Location", "/page");
response.end();
But the current page is mixed with the new one, it looks strange :| My solution looked totally logical, I don't really know why this happens, but if I reload the page after the redirection it works.
但是当前页面和新页面混在一起，看起来很奇怪:| 我的解决方案看起来完全合乎逻辑，我真的不知道为什么会发生这种情况，但是如果我在重定向后重新加载页面，它就会起作用。
Anyway what's the proper way to do HTTP redirects in node?
无论如何，在节点中进行 HTTP 重定向的正确方法是什么？
采纳答案by Geoff Chappell
Looks like express does it pretty much the way you have. From what I can see the differences are that they push some body content and use an absolute url.
看起来 express 和你的方式差不多。从我所看到的不同之处在于它们推送一些正文内容并使用绝对网址。
See the express response.redirect method:
参见 express response.redirect 方法：
https://github.com/visionmedia/express/blob/master/lib/response.js#L335
https://github.com/visionmedia/express/blob/master/lib/response.js#L335
// Support text/{plain,html} by default
if (req.accepts('html')) {
body = '<p>' + http.STATUS_CODES[status] + '. Redirecting to <a href="' + url + '">' + url + '</a></p>';
this.header('Content-Type', 'text/html');
} else {
body = http.STATUS_CODES[status] + '. Redirecting to ' + url;
this.header('Content-Type', 'text/plain');
}
// Respond
this.statusCode = status;
this.header('Location', url);
this.end(body);
};
回答by Kamrul
Yes it should be full url in setHeader.
是的，它应该是setHeader.
res.statusCode = 302;
res.setHeader('Location', 'http://' + req.headers['host'] + ('/' !== req.url)? ( '/' + req.url) : '');
res.end();
回答by Brad
server = http.createServer(
function(req, res)
{
url ="http://www.google.com";
body = "Goodbye cruel localhost";
res.writeHead(301, {
'Location': url,
'Content-Length': body.length,
'Content-Type': 'text/plain' });
res.end(body);
});
回答by jcolebrand
What happens if you change it to 307 instead?
如果将其更改为 307 会发生什么？
回答by Rob
This issue may also depend on the type of request you are handling. A POST request cannot be redirected using the header. For example, a first-time visitor from to your app in FB will most-likely be coming via a "signed request" POST and therefore a redirect will not work.
此问题还可能取决于您正在处理的请求类型。无法使用标头重定向 POST 请求。例如，来自 FB 应用程序的首次访问者很可能是通过“签名请求”POST 来的，因此重定向将不起作用。
