快速重定向不会更改req.url [英] Express redirecting doesn't change req.url

问题描述

我有一条成功登录后会重定向的路由

I have a route that redirects upon successful login

app.post('/login', function(req, res){
  if(req.body.password === Server.cfg.auth.userPass) {
    req.session.user = {nick: req.body.username, pass: req.body.password}
    res.redirect('/chat')
  } else {
    res.render('user/login', { locals: { error: 'Invalid password' } })
  }
})

当页面被正确呈现的玉文件刷新时，重定向似乎起作用.但是，URL仍然显示/login，而我的pageTitle变量(通过模板vars设置)也没有改变.如果我在重定向后刷新页面，则所有内容都会更改为原来的样子.只是在重定向之后，它才能保持不变.

The redirect seems to work as the page is refreshed with the correctly rendered jade file. However, the url still says /login and my pageTitle variable (being set through template vars) does not change either. If I refresh the page after the redirect, everything changes to the way it should be. It is only after the redirect that it does not change.

推荐答案

对于那些试图处理来自服务器控制的开发背景的Ajax重定向的人来说，这是很常见的混淆.我的示例显示了授权失败会发生的情况，略有不同.但是您可以使用拦截响应和检查状态等相同的概念，并让客户端JavaScript进行重定向.

This has got to be a pretty common mix up for folks trying to deal with ajax redirects coming from a server controlled development background. My example shows what happens if authorization fails, slightly different; but you can use the same concept of intercepting the response and checking status, etc., and let the client JavaScript do the redirect.

我的客户代码实际上是一个骨干模型，但是依次调用了jquery的ajax:

My client code is actually a backbone model but in turn is calling jquery's ajax like:

model.save({ error:function... 

服务器

function requiresLogin(req, res, next) {  
    if(req.session.user) {
        next();
    } else {
        //res.redirect('/sessions/new?redir=' + req.url); // won't work
        res.send("Unauthorized", 403); // send 403 http status
    }
}

客户

  // Assumes you can get http status from response
  error: function(resp, status, xhr)...
      if(resp.status === 403) {
          window.location = '/sessions/new'; // optionally put a redirLastPage=somewhere
      }

这对我来说很理想.我还建议使用谷歌搜索ajax帖子重定向，以了解为什么

This works as desired for me. I'd also suggest googling ajax post redirects to see why this

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