[英]req.flash() node express 4
I like use req.flash(), but didnt work. 我喜欢使用req.flash(),但是没有用。 I tried different ways.
我尝试了不同的方法。 Result was nothing.
结果什么都没有。 #{message} is empty.
#{message}为空。 I dont know why... thanks to the help!
我不知道为什么...感谢帮助!
server.js: server.js:
var express = require('express');
var flash = require('connect-flash');
var bodyParser = require('body-parser');
var cookieParser = require('cookie-parser');
var session = require('express-session')
var app = express();
app.use(cookieParser('secret'));
app.use(session({cookie: { maxAge: 60000 }}));
app.use(flash());
controller: 控制器:
app.get('/feedback', function (req, res) {
res.render('feedback', { message: req.flash('info')
});
});
app.post('/fb', function(req, res) {
req.flash('info', 'hello world');
res.redirect('/feedback');
});
view.jade: view.jade:
p #{message}
Render your view again with the flash as your message object. 以Flash作为消息对象再次渲染视图。
app.post('/fb', function(req, res) {
res.render('feedback', {
message: req.flash('hello world')
});
});
Displaying error message we can use connect-flash node module 显示错误消息,我们可以使用connect-flash节点模块
configuring flash module 配置闪存模块
var flash = require('connect-flash'); var flash = require('connect-flash');
app.use(flash()); app.use(flash()); connect-flash module expose the req.flash() method that allow you create and retrieve the flash message
connect-flash模块公开req.flash()方法,使您可以创建和检索Flash消息
example 例
app.get('/flash', function(req, res){
// Set a flash message by passing the key, followed by the value, to req.flash().
req.flash('info', 'Flash is back!')
res.redirect('/');
});
app.get('/', function(req, res){
// Get an array of flash messages by passing the key to req.flash()
res.render('index', { messages: req.flash('info') });
});
follow this link https://www.npmjs.com/package/connect-flash 跟随此链接https://www.npmjs.com/package/connect-flash
inside jade you can access 里面的玉你可以进入
local.messages 本地消息
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