Question

我正在尝试使用cookie-session在我的快递应用中存储一个值。我想在我的任何路线中访问此值。我可以在index.js文件中完美地完成这个任务。

var app = express();
app.set("trust proxy", 1);
app.use(
  cookieSession({
    name: "session",
    secret: "key",
    httpOnly: true,
    maxAge: 30 * 60 * 1000,
    secure: false,
    overwrite: false
  })
);


app.get("/", function(req, res, next) {
  // Update views
  req.session.views = (req.session.views || 0) + 1;
  req.session.key = "some key I set"
  // print out 3 views key = some key I set
  res.end(req.session.views + " views " + "key = " + req.session.key);
});

我遇到的问题是当我尝试在我的某个路线中设置或获取任何内容时，我收到错误说明

无法设置未定义的属性'key'

这是我的testRoute文件

module.exports = app => {
  app.get("/test",(req, res) => {
    // throws error
    res.end(req.session.key);
  });
};

Ant这就是我让index.js文件知道它的方法。

var app = express();
// Tell Index about my route
require("./routes/authRoutes")(app);

app.set("trust proxy", 1);
app.use(
  cookieSession({
    name: "session",
    secret: "key",
    httpOnly: true,
    maxAge: 30 * 60 * 1000,
    secure: false,
    overwrite: false
  })
);

我非常擅长表达中间件和路线的概念。

在我的所有路线中访问cookie会话的正确方法是什么。

Answer 1

我怀疑问题是你在设置会话之前require路线：

var app = express();
require("./routes/testRoute")(app);
app.set("trust proxy", 1);

//you haven't told your app about the session
require("./routes/testRoute")(app);

///until now....
app.use(
  cookieSession({
    name: "session",
    secret: "key",
    httpOnly: true,
    maxAge: 30 * 60 * 1000,
    secure: false,
    overwrite: false
  })
);

试试这个

var app = express();
require("./routes/testRoute")(app);
app.set("trust proxy", 1);

app.use(
  cookieSession({
    name: "session",
    secret: "key",
    httpOnly: true,
    maxAge: 30 * 60 * 1000,
    secure: false,
    overwrite: false
  })
);

//require route after session has been set up
require("./routes/testRoute")(app);

作为一方，Router可能更适合使用，require您的路线。
完整详情：https://expressjs.com/en/4x/api.html#router

如何在路由

1 个答案: