我實現了req-flash,像這樣:https://www.npmjs.com/package/req-flash。 這樣做後,出現以下錯誤:Expressjs/AngularJS:執行req-flash後出錯
D:\_SOURCES\smfc\node_modules\req-flash\index.js:36
if (options.locals) {
^
TypeError: Cannot read property 'locals' of undefined
at module.exports (D:\_SOURCES\smfc\node_modules\req-flash\index.js:36:13)
at Object.<anonymous> (D:\_SOURCES\smfc\routes\index.js:6:13)
at Module._compile (module.js:413:34)
at Object.Module._extensions..js (module.js:422:10)
at Module.load (module.js:357:32)
at Function.Module._load (module.js:314:12)
at Module.require (module.js:367:17)
at require (internal/module.js:16:19)
at Object.<anonymous> (D:\_SOURCES\smfc\app.js:15:14)
at Module._compile (module.js:413:34)
at Object.Module._extensions..js (module.js:422:10)
at Module.load (module.js:357:32)
at Function.Module._load (module.js:314:12)
at Module.require (module.js:367:17)
at require (internal/module.js:16:19)
at Object.<anonymous> (D:\_SOURCES\smfc\bin\www:7:11)
這是REQ閃光index.js的一部分:
module.exports = function(options) {
if (options.locals) {
localsKey = options.locals;
}
return flash;
};
這是我app.js的介紹:
var mongoose = require('mongoose');
require('./models/SupermarketGroups');
mongoose.connect('mongodb://smfc:[email protected]:11482/smfc');
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var session = require('express-session');
var bodyParser = require('body-parser');
var flash = require('req-flash');
var routes = require('./routes/index');
var users = require('./routes/users');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
extended: false
}));
app.use(cookieParser());
app.use(session({ secret: '123' }));
app.use(flash());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', routes);
app.use('/users', users);
我的代碼有什麼問題?
問題是'flash'構造函數期望一個'options'對象被**總是傳入**意味着它期望像'flash({/ *期待options對象* /})'這樣的調用。它沒有適當的後備,如果你不通過任何你在這裏做的事情'flash(/ *你沒有傳遞任何東西* /)'。因此,你最好是[Nivesh建議](http://stackoverflow.com/a/37256777/3928341),如果你沒有任何選項,總是傳入一個選項對象並傳入一個空對象:'flash ({})'。 – nem035