Question

我对节点js完全不熟悉。这是为了学习目的。我使用护照js验证用户名并登录它工作正常。

passport.use(new LocalStrategy({
    usernameField: 'username',
    passwordField: 'password'
}, function (username, password, done) {
console.log(username,password);
User1.collection('mydb1', function(err, collection) {
    if (!err) {
        collection.findOne({
            username:username
        }, function(err,user) {
            console.log(user);
            if (err) {
                return done(err);
            }

            if (!user) {
                return done(null, false, { message: 'Incorrect username.' });
            }

            if (user.password != password) {
                return done(null, false, {
                    message: 'Invalid password' 
                });
            } else {
                return done(null, user);
            }
     })
}});

构造

app.use(bodyParser.urlencoded({extended: true}));
app.use(passport.initialize());
app.use(passport.session());

验证

app.post(
    '/',
    passport.authenticate(
        'local',
        {
            successRedirect: '/success',
            failureRedirect: '/loginerror'
        }
    )
);

在/success我想在另一个页面中显示用户名，我尝试访问用户名，例如 request.user.usernmame

app.get('/success', function(request, response){
    response.send('ok');
    console.log(request.user.username);
});

但是我在控制台中收到以下错误消息

TypeError: Cannot read property 'usernmame' of undefined
at Object.app.post.passport.authenticate.successRedirect [as handle] (D:\nod
ejsmodule\mongodb\server.js:114:25)
at next_layer (D:\nodejsmodule\node_modules\express\lib\router\route.js:103:13)
 at Route.dispatch (D:\nodejsmodule\node_modules\express\lib\router\route.js:107:5)
 at D:\nodejsmodule\node_modules\express\lib\router\index.js:213:24
 at Function.proto.process_params (D:\nodejsmodule\node_modules\express\lib\r
 outer\index.js:286:12)
 at next (D:\nodejsmodule\node_modules\express\lib\router\index.js:207:19)
 at SessionStrategy.strategy.pass (D:\nodejsmodule\node_modules\passport\lib\
 middleware\authenticate.js:314:9)
 at SessionStrategy.authenticate (D:\nodejsmodule\node_modules\passport\lib\s
 trategies\session.js:67:10)
 at attempt (D:\nodejsmodule\node_modules\passport\lib\middleware\authenticat
 e.js:337:16)
 at Layer.authenticate [as handle] (D:\nodejsmodule\node_modules\passport\lib
 \middleware\authenticate.js:338:7)

如果我在配置部分添加app.use(session({ secret: 'anything',saveUninitialized: true,resave: true }));，我在控制台

中收到以下错误消息

ReferenceError: err is not defined
at passport.use.LocalStrategy.usernameField (D:\nodejsmodule\mongodb\server.
js:67:10)
at pass (D:\nodejsmodule\node_modules\passport\lib\authenticator.js:353:9)
at Authenticator.deserializeUser (D:\nodejsmodule\node_modules\passport\lib\
authenticator.js:358:5)
at SessionStrategy.authenticate (D:\nodejsmodule\node_modules\passport\lib\s
trategies\session.js:49:28)
at attempt (D:\nodejsmodule\node_modules\passport\lib\middleware\authenticat
e.js:337:16)
at Layer.authenticate [as handle] (D:\nodejsmodule\node_modules\passport\lib
\middleware\authenticate.js:338:7)
at trim_prefix (D:\nodejsmodule\node_modules\express\lib\router\index.js:254
:17)
at D:\nodejsmodule\node_modules\express\lib\router\index.js:216:9
at Function.proto.process_params (D:\nodejsmodule\node_modules\express\lib\r
outer\index.js:286:12)
at next (D:\nodejsmodule\node_modules\express\lib\router\index.js:207:19)

Answer 1

我之前遇到过同样的问题。我想，你也一样。

原因是，Passport无法从POST正文中获取数据。要解决此问题，您必须提供Express to Passport的req和res个变量。

尝试使用auhtentication包装代码（req，res）：

app.post(
    '/',
    passport.authenticate('local', {
        successRedirect: '/success',
        failureRedirect: '/loginerror'
    })(req, res)
);

为了更好的视力，我会这样写：

app.post('/', passport.authenticate('local')(req, res));

Answer 2

尝试执行console.log（'myreq'，request）;并尝试从app.get更改为app.post。对不起，我想用手机版。

类似的东西：

app.post（'/ success'，function（request，response）{response.send（'ok'）; 的console.log（ 'myreq'，请求）;的console.log（request.user.username）; }）;

Answer 3

尝试执行console.log（'myreq'，request）;并尝试从app.get更改为app.post。对不起，我想用手机版。

app.use（session（））给出错误未定义

3 个答案: