Javascript 将节点js变量传递给ejs模板
我在节点js文件“index.js”中有一个post请求 在profile.ejs中显示给客户看,我有:这是完整的代码,我只是按照要求编辑Javascript 将节点js变量传递给ejs模板,javascript,node.js,ejs,Javascript,Node.js,Ejs,我在节点js文件“index.js”中有一个post请求 在profile.ejs中显示给客户看,我有:这是完整的代码,我只是按照要求编辑 <html lang="en"> <head> <title>Node Authentication</title> <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.2/css/bootstrap.m
<html lang="en">
<head>
<title>Node Authentication</title>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.2/css/bootstrap.min.css">
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css">
<style>
body { padding-top:80px; word-wrap:break-word; }
</style>
</head>
<br>
<%- include header %>
<div class="container">
<div class="page-header text-center">
<h1><span class="fa fa-anchor"></span> Profile Page</h1>
<a href="/logout" class="btn btn-default btn-sm">Logout</a>
<form action="/profile" method="get">
<button type="submit" class="btn btn-warning btn-lg" id="sub" >test</button>
</form>
</div>
<div class="row">
<!-- LOCAL INFORMATION -->
<div class="col-sm-6">
<div class="well">
<h3><span class="fa fa-user"></span> Local</h3>
<form action="/profile" method="post">
<p>
<strong>id</strong>: <%= user.id %><br>
<strong>username</strong>: <%= user.username %><br>
<strong>password</strong>: <%= user.password %>
</p>
<textarea id="myTextArea" cols=50 rows=10><%= data %>
</textarea>
<!-- these fields will be sent to server -->
<input type="hidden" name="username" value="<%= user.username %>">
<input type="hidden" name="password" value="<%= user.password %>">
<button type="submit" class="btn btn-warning btn-lg" id="sub" >Wallet</button>
</form>
</div>
</div>
</div>
</div>
<%- include footer %>
节点身份验证
正文{padding top:80px;换行符:break word;}
个人资料页
测试
地方的
id:
用户名:
密码:
钱包
我想把“
projectedWallet
”的值放在ejs文件的文本区域的post请求中,但我不知道怎么做。您将希望通过ejs将projectedWallet
输入文本区域,如下所示:
index.js
this.app.post('/profile', (req, res) => {
let password = req.body.password;
let newWallet = operator.createWalletFromPassword(password);
let projectedWallet = projectWallet(newWallet);
//added line
res.locals.projectedWallet = projectedWallet
res.render('profile.ejs', {
user : req.user,
});
console.log(JSON.stringify(projectedWallet));
});
<form action="/profile" method="post">
<p>
<strong>id</strong>: <%= user.id %><br>
<strong>username</strong>: <%= user.username %><br>
<strong>password</strong>: <%= user.password %>
</p>
<!-- updated line -->
<textarea id="myTextArea" cols=50 rows=10><%=projectedWallet %>
</textarea>
<!-- these fields will be sent to server -->
<input type="hidden" name="username" value="<%= user.username %>">
<input type="hidden" name="password" value="<%= user.password %>">
<button type="submit" class="btn btn-warning btn-lg">Wallet</button>
</form>
。。。并在模板的文本区域中使用它
profile.ejs
this.app.post('/profile', (req, res) => {
let password = req.body.password;
let newWallet = operator.createWalletFromPassword(password);
let projectedWallet = projectWallet(newWallet);
//added line
res.locals.projectedWallet = projectedWallet
res.render('profile.ejs', {
user : req.user,
});
console.log(JSON.stringify(projectedWallet));
});
<form action="/profile" method="post">
<p>
<strong>id</strong>: <%= user.id %><br>
<strong>username</strong>: <%= user.username %><br>
<strong>password</strong>: <%= user.password %>
</p>
<!-- updated line -->
<textarea id="myTextArea" cols=50 rows=10><%=projectedWallet %>
</textarea>
<!-- these fields will be sent to server -->
<input type="hidden" name="username" value="<%= user.username %>">
<input type="hidden" name="password" value="<%= user.password %>">
<button type="submit" class="btn btn-warning btn-lg">Wallet</button>
</form>
id:
用户名:
密码:
钱包
您可以将变量保存在响应的局部变量中,然后在前端使用它(本例中为EJs)
更新代码::
index.js
this.app.post('/profile', (req, res) => {
let password = req.body.password;
let newWallet = operator.createWalletFromPassword(password);
let projectedWallet = projectWallet(newWallet);
//added line
res.locals.projectedWallet = projectedWallet
res.render('profile.ejs', {
user : req.user,
});
console.log(JSON.stringify(projectedWallet));
});
<form action="/profile" method="post">
<p>
<strong>id</strong>: <%= user.id %><br>
<strong>username</strong>: <%= user.username %><br>
<strong>password</strong>: <%= user.password %>
</p>
<!-- updated line -->
<textarea id="myTextArea" cols=50 rows=10><%=projectedWallet %>
</textarea>
<!-- these fields will be sent to server -->
<input type="hidden" name="username" value="<%= user.username %>">
<input type="hidden" name="password" value="<%= user.password %>">
<button type="submit" class="btn btn-warning btn-lg">Wallet</button>
</form>
profile.ejs
this.app.post('/profile', (req, res) => {
let password = req.body.password;
let newWallet = operator.createWalletFromPassword(password);
let projectedWallet = projectWallet(newWallet);
//added line
res.locals.projectedWallet = projectedWallet
res.render('profile.ejs', {
user : req.user,
});
console.log(JSON.stringify(projectedWallet));
});
<form action="/profile" method="post">
<p>
<strong>id</strong>: <%= user.id %><br>
<strong>username</strong>: <%= user.username %><br>
<strong>password</strong>: <%= user.password %>
</p>
<!-- updated line -->
<textarea id="myTextArea" cols=50 rows=10><%=projectedWallet %>
</textarea>
<!-- these fields will be sent to server -->
<input type="hidden" name="username" value="<%= user.username %>">
<input type="hidden" name="password" value="<%= user.password %>">
<button type="submit" class="btn btn-warning btn-lg">Wallet</button>
</form>
id:
用户名:
密码:
钱包
您需要检查变量(projectedWallet)是否已在获取请求中定义。您没有将projectedWallet作为参数发送,因此会出现错误
<% if(typeof projectedWallet !== 'undefined') { %>
<p><%= projectedWallet %></p>
<% } %>
如果多次渲染视图,有时使用变量,有时不使用变量,则需要添加一个条件,并检查每个渲染是否存在该变量它不起作用!出现错误:39 | 40 | 41 | projectedWallet未启动defined@Meowth2018我注意到在index.js文件中有res.render('profile.ejs',…)
。您正在渲染profile.ejs,而不是index.ejs。你在哪里渲染index.ejs?对不起,我打错了。我使用的文件是profile.ejs,不是index.ejs,但这不是问题,问题是渲染后projectedWallet没有在profile.ejs中定义。您确定始终定义了projectedWallet
?还有,我可以问一下您使用的是什么版本的EJS吗?它仍然返回一个错误“projectedWallet未定义”请帮助我!请分享你的整个index.js文件。请看我的问题。我只是按照你的要求编辑的。请帮帮我!有些地方说我必须声明“中间件功能”,但我真的不知道从哪里开始,也不知道怎么做。请帮帮我!!!