使用发布请求将nodejs变量发送到ejs模板
[英]Send nodejs variable to ejs template with post request
问题描述
I use Express JS in my nodejs application to create a post request. 
我在nodejs应用程序中使用Express JS创建发布请求。
IN INDEX.JS FILE I HAVE 在我拥有的INDEX.JS文件中
this.app.post('/profile', (req, res, next) => {
let password = req.body.password;
let newWallet = operator.createWalletFromPassword(password);
let projectedWallet = projectWallet(newWallet);
res.locals.projectedWallet = projectedWallet
res.render('profile.ejs', {
user : req.user,
});
console.log(JSON.stringify(projectedWallet));
});
And in profile.ejs I have 在profile.ejs中，我有
<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">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="/httpServer/index.js" />
<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>
</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" style="margin: 0px; width: 522px; height: 111px;">
<%=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>
</div>
</div>
</div>
</div>
<%- include footer %>
What I want is that, when I click the button in profile.ejs , the post request will work and do some function for me. 我想要的是，当我单击profile.ejs的按钮时，发帖请求将起作用并为我执行一些功能。 After that, the result of function will be stored in projectedWallet variable. 之后，函数的结果将存储在projectedWallet变量中。 When I pass this projectedWallet to ejs file - in this case profile.ejs - it will show up in value of textarea. 当我将这个projectedWallet传递给ejs文件（在本例中为profile.ejs ）时，它将显示为textarea的值。 So, I want to make this variable to be accessed everywhere so I set 所以，我想让这个变量可以在任何地方访问，所以我设置了
res.locals.projectedWallet = projectedWallet
But even with this, it still does not work. 但是即使如此，它仍然无法正常工作。 When I click button in profile.ejs, it return an error projectedWallet is not defined. 当我单击profile.ejs中的按钮时，它返回错误projectedWallet尚未定义。 I really don't know what to do next?! 我真的不知道下一步该怎么办？！
Do I have to include this node js file ( index.js ) into ejs template in head tag? 我是否必须将这个节点js文件（ index.js ）包含在head标签的ejs模板中？
Version of Express JS that i use is version 4. 我使用的Express JS版本是版本4。
2 个解决方案
解决方案1
0 2018-06-07 04:47:24
Pass the projectedWallet variable in res.render 在res.render传递projectedWallet变量
res.render('profile.ejs', {
user : req.user,
projectedWallet: projectedWallet });
解决方案2
0 2018-06-07 08:35:51
You can the projectedWallet variable in res.render
您可以在res.render中使用projectedWallet变量 res.render('index', {projectedWallet:projectedWallet}, function(err, html) { console.log(html); res.send('done'); })Second option will be to use session and accessing the sesssion variable
第二种选择是使用会话并访问sesssion变量 var session = require('express-session');
var session = require（'express-session'）; req.session.projectedWallet=projectedWallet;
req.session.projectedWallet = projectedWallet;
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.