错误： "messages is not a function" - req.flash()

Question

我有req.flash((设置，每当我注销时，我都希望它显示一条消息，但我收到了一条来自欢迎页面的错误消息(我重定向到的页面，错误：消息不是一个函数(。我不明白的是，我的请求访问了views/message.ejsis，我甚至能够控制台.log(message(.

消息.ejs

<div id="messages">
<% Object.keys(messages).forEach(function (type) { %>
<% messages[type].forEach(function (message) { %>
<%= message %>
<% }) %>
<% }) %>
</div>

退出路线

app.get('/logout', function(req, res){
req.logout();
req.flash('success', 'You have been logged out.');
res.redirect('/login');
});

Express Messages中间件

app.use(require('connect-flash')());
app.use(function (req, res, next) {
res.locals.messages = require('express-messages')(req, res);
next();
});

欢迎页面

<% include ../partials/header-top.ejs %>
<title>Anon. - Welcome</title>
<% include ../partials/header-bottom.ejs %>
<div class="WATCH-OUT-card" id="content-warning">
<center>
<div class="card">
<div class="card-header">
Important
</div>
<div class="card-body">
<h5 class="card-title">Watch Out!</h5>
<p class="card-text">This site contains sensitive content.</p>
<a href="/" class="btn btn-primary">Go to site.</a>
</div>
</div>
</center>
</div>
<div id="welcomeContainer">
<div class="signupbox">
<div id="registerMessage">
<%- messages('message', locals) %>
</div>
<h1 id = "SignupHeader">Sign Up Here</h1>
<form action="/register" method="POST">
<p class="signupText">Username</p>
<input type="text" name="username" placeholder="Enter Username">    
<p class="signupText">Password</p>
<input type="password" name="password" placeholder="Enter Password">
<p class="signupText">Confirm Pasword</p>
<input type="password" name="password2" placeholder="Enter Password">
<input type="submit" name="" value="Sign Up">
</form> 
</div>
<p>Or</p>
<div class="loginbox">
<div id="registerMessage">
<%- messages('message', locals) %>
</div>
<h1 id = "LoginHeader">Login Here</h1>
<form action="/login" method="POST">
<p class="LoginText">Username</p>
<input type="text" name="username" placeholder="Enter Username">
<p class="LoginText">Password</p>
<input type="password" name="password" placeholder="Enter Password">
<input type="submit" name="" value="Login">
</form> 
</div>
</div>
<% include ../partials/footer.ejs %>

错误：

TypeError: C:UsersericlDocumentsANONviewswelcome.ejs:41
39|     <div class="loginbox">
40|         <div id="registerMessage">
>> 41|             <%- messages('message', locals) %>
42|         </div>
43|         <h1 id = "LoginHeader">Login Here</h1>
44|         <form action="/login" method="POST">
messages is not a function
at eval (eval at compile (C:UsersericlDocumentsANONnode_modulesejslibejs.js:618:12), <anonymous>:53:17)
at returnedFn (C:UsersericlDocumentsANONnode_modulesejslibejs.js:653:17)
at tryHandleCache (C:UsersericlDocumentsANONnode_modulesejslibejs.js:251:36)
at View.exports.renderFile [as engine] (C:UsersericlDocumentsANONnode_modulesejslibejs.js:482:10)
at View.render (C:UsersericlDocumentsANONnode_modulesexpresslibview.js:135:8)
at tryRender (C:UsersericlDocumentsANONnode_modulesexpresslibapplication.js:640:10)
at Function.render (C:UsersericlDocumentsANONnode_modulesexpresslibapplication.js:592:3)
at ServerResponse.render (C:UsersericlDocumentsANONnode_modulesexpresslibresponse.js:1008:7)
at C:UsersericlDocumentsANONrouteslogin.js:10:6
at Layer.handle [as handle_request] (C:UsersericlDocumentsANONnode_modulesexpresslibrouterlayer.js:95:5)
at next (C:UsersericlDocumentsANONnode_modulesexpresslibrouterroute.js:137:13)
at Route.dispatch (C:UsersericlDocumentsANONnode_modulesexpresslibrouterroute.js:112:3)
at Layer.handle [as handle_request] (C:UsersericlDocumentsANONnode_modulesexpresslibrouterlayer.js:95:5)
at C:UsersericlDocumentsANONnode_modulesexpresslibrouterindex.js:281:22
at Function.process_params (C:UsersericlDocumentsANONnode_modulesexpresslibrouterindex.js:335:12)
at next (C:UsersericlDocumentsANONnode_modulesexpresslibrouterindex.js:275:10)

Answer 1

问题是我的欢迎文件中有两个消息函数。