如何解决NodeJS-错误消息不适用于EJS
正在创建网站,我想添加一条错误消息,如果已经有注册了该特定电子邮件的帐户,该消息将显示在前端。
当前,当我用完全不同的电子邮件注册新用户时,我能够用文字显示“您现在已注册,”的绿色标语。请登录'。但是,当我对成功消息采用相同的方法并将其实现为错误消息时,它仅重定向到登录页面,而没有显示“该电子邮件已存在”的文本。请登录'。 有人可以指出引起这种情况的问题吗?
谢谢
我的Index.js
User.findOne({email: req.body.email})
.then(user => {
if(!user){
//Instantiate a new user
const newUser = new User({
firstName: req.body.firstName,lastName: req.body.lastName,email: req.body.email,password: req.body.password
});
//Hashing our password
bcrypt.genSalt(10,(err,salt) =>{
bcrypt.hash(newUser.password,salt,hash) =>{
newUser.password = hash;
newUser.save()
.then(savedUser => {
req.flash('success_message','You are now registered. Please log in')
res.redirect('/login');
});
})
});
}else{
req.flash('error_message','That email already exists. Please login')
res.redirect('/login');
}
});
}
});
我的login.ejs
<!-- Header -->
<%- include('../partials/frontendheader.ejs')%>
<body>
<!-- navbar -->
<%- include('../partials/nav.ejs')%>
<!-- Form success messages -->
<% if(locals.success_message){locals.success_message.forEach(function(success){%>
<div id="test" class="alert alert-success"><%= success_message %></div>
<% })} %>
<% if(locals.error_message){locals.error_message.forEach(function
(error){%>
<div id="test" class="alert alert-danger"><%= error_message %></div>
<% })} %>
<div class="card card-login mx-auto mt-5">
<div class="card-header">Login</div>
<div class="card-body">
<form action="/login" method="post">
<div class="form-group">
<label for="exampleInputEmail1">Email address</label>
<input name="email" class="form-control" id="exampleInputEmail1" type="email" aria-describedby="emailHelp" placeholder="Enter email">
</div>
<div class="form-group">
<label for="exampleInputPassword1">Password</label>
<input name="password" class="form-control" id="exampleInputPassword1" type="password" placeholder="Password">
</div>
<div class="form-group">
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Remember Password</label>
</div>
</div>
<button type="submit" class="btn btn-primary btn-block">Login</button>
</form>
<div class="text-center">
<a class="d-block small mt-3" href="/register">Register an Account</a>
<a class="d-block small" href="forgot-password.html">Forgot Password?</a>
<a class="d-block small" href="/">Home Page?</a>
</div>
</div>
</div>
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