2

我是 NodeJS 的新手,并试图在 Express3.0 上构建一个应用程序,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)阻碍了我的进步。

异常发生在以下行。
res.render('login', { user: req.user, message: req.flash('error') });
表达
500 TypeError: Object # has no method 'flash'

    在 /Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/app.js:115:54
    在回调(/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:162:37)
    在参数(/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:136:11)
    通过(/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:143:5)
    在 Router._dispatch (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:171:5)
    在 Object.router (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/lib/router/index.js:33:10)
    在下一个(/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/node_modules/connect/lib/proto.js:190:15)
    在 store.get.next (/Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/node_modules/connect/lib/middleware/session.js:310:9)
    在 /Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/node_modules/connect/lib/middleware/session.js:333:9
    在 /Users/vivekanandan/Source/Git/ExpressApp/CosmicEnergyCoupled/node_modules/express/node_modules/connect/lib/middleware/session/memory.js:52:9


我已经按照作者的建议(passport-local-strategy)安装了 connect-flash 来恢复已弃用的 req.flash 方法。请找到应用程序中安装的 npm 包。

├── connect-flash@0.1.0
├── ejs@0.8.3
├── ejs-locals@0.2.5
├─┬ express@3.0.0
│ ├── 指挥官@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
│ ├── 新鲜@0.1.0
│ ├── methods@0.0.1
│ ├── mkdirp@0.3.3
│ ├── range-parser@0.0.4
│ └─┬ 发送@0.1.0
│ └── mime@1.2.6
├─┬ 护照@0.1.12
│ └── pkginfo@0.2.3
├─┬ passport-local@0.1.6
│ ├── 护照@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
│ │ ├── 指挥官@0.6.1
│ │ ├── options@0.0.3
│ │ └── tinycolor@0.0.1
│ └── xmlhttprequest@1.4.2
└─┬ stylus@0.30.1
  ├── cssom@0.2.5
  ├── 调试@0.7.0
  └── mkdirp@0.3.4
4

2 回答 2

0

尝试将此添加到您的主要 app.configure 方法

app.use(flash());
于 2012-10-30T09:18:58.150 回答
0
npm install connect-flash --save

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

我认为你用错了。您只需要在 res.redirect 之前使用类型和消息调用 req.flash()

   req.flash('info', 'Welcome to the site, a welcome email has been sent to you.');
   res.redirect('/');
于 2012-10-30T09:22:17.077 回答