cookie-session 不保存会话修改

Question

我想记住某人访问的最后一页 (like here)
我试着用 cookie-session 来做，但它并没有像我想的那样工作。

我看到 and I tried this example 延长会话但没有成功。

这里是代码：

var session = require('cookie-session');
var express = require('express');

var app = express();

app.use( session({ secret: 'secret' }) );


app.get('/a', function (req, res) {
  if(req.session.last) {
    res.write("the last page was " + req.session.last + ". ");
  }  
  req.session.last = "a";
  res.end("Page A");  
});

app.get('/b', function (req, res) {
  if(req.session.last) {
    res.write("the last page was " + req.session.last + ". ");
  } 
  req.session.last = "b";  
  res.end("Page B");
});

app.get('/c', function (req, res) {
  if(req.session.last) {
    res.write("the last page was " + req.session.last + ". ");
  } 
  req.session.last = "c";  
  res.end("Page C");
});

app.listen(8080);

Answer 1

您确定您的日志中没有出现 "cannot write to headers after they have been sent" 行的错误吗？您可以尝试将 session 的分配移动到 res.write 调用之前吗？来自您的第一个 link，在评论中...

“我一直收到错误消息，提示 headers 在发送后无法设置。我修改了代码，以便在发送任何 body 之前设置 lastPage，例如：

var responseText;

if(req.session.lastPage) 
responseText = 'Last page was: ' + req.session.lastPage + '. ';

else
responseText = 'You\'re Awesome';

req.session.lastPage = '/awesome';
res.send(responseText);

cookie-session 不保存会话修改

cookie-session doesn't save session modification

node.js

express

cookie-session