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NodeJS：具有connect-flash的Express 3.0（在护照本地策略中建议），仍然为req.flash找到异常

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我是NodeJS的新手，并尝试在Express3.0上构建应用程序，包括用于身份验证的护照本地策略 . 但是以下异常（关于req.flash）会阻止我的进度 .

Exception occurs in the following line.
res.render('login', { user: req.user, message: req.flash('error') });

Express
500 TypeError: Object # has no method 'flash'

    at /Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/app.js:115:54
    at callbacks (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:162:37)
    at param (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:136:11)
    at pass (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:143:5)
    at Router._dispatch (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:171:5)
    at Object.router (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:33:10)
    at next (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/node_modules/connect/lib/proto.js:190:15)
    at store.get.next (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/node_modules/connect/lib/middleware/session.js:310:9)
    at /Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/node_modules/connect/lib/middleware/session.js:333:9
    at /Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/node_modules/connect/lib/middleware/session/memory.js:52:9

我已按照作者的建议（passport-local-strategy）安装了connect-flash以恢复已弃用的req.flash方法 . 请找到应用程序中安装的npm软件包 .

├── connect-flash@0.1.0
├── ejs@0.8.3
├── ejs-locals@0.2.5
├─┬ express@3.0.0
│ ├── commander@0.6.1
│ ├─┬ connect@2.6.0
│ │ ├── bytes@0.1.0
│ │ ├── formidable@1.0.11
│ │ ├── pause@0.0.1
│ │ ├── qs@0.5.1
│ │ └─┬ send@0.0.4
│ │   └── mime@1.2.6
│ ├── cookie@0.0.4
│ ├── crc@0.2.0
│ ├── debug@0.7.0
│ ├── fresh@0.1.0
│ ├── methods@0.0.1
│ ├── mkdirp@0.3.3
│ ├── range-parser@0.0.4
│ └─┬ send@0.1.0
│   └── mime@1.2.6
├─┬ passport@0.1.12
│ └── pkginfo@0.2.3
├─┬ passport-local@0.1.6
│ ├── passport@0.1.12
│ └── pkginfo@0.2.3
├─┬ socket.io@0.9.10
│ ├── policyfile@0.0.4
│ ├── redis@0.7.2
│ └─┬ socket.io-client@0.9.10
│   ├─┬ active-x-obfuscator@0.0.1
│   │ └── zeparser@0.0.5
│   ├── uglify-js@1.2.5
│   ├─┬ ws@0.4.22
│   │ ├── commander@0.6.1
│   │ ├── options@0.0.3
│   │ └── tinycolor@0.0.1
│   └── xmlhttprequest@1.4.2
└─┬ stylus@0.30.1
  ├── cssom@0.2.5
  ├── debug@0.7.0
  └── mkdirp@0.3.4
node.js express passport.js

2 回答

  • 0

    尝试将此添加到您的主app.configure方法

    app.use(flash());
    回复于
  • 0
    npm install connect-flash --save

var flash = require('connect-flash')
app.use(flash());

    你觉得你错了 . 你只需要在res.redirect之前用类型和消息调用req.flash（）

    req.flash('info', 'Welcome to the site, a welcome email has been sent to you.');
   res.redirect('/');
    回复于

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