1.引用semantic 中的 menu 时menu不能隐藏，不是那边的script脚本问题，那么就是menu的问题，看了半小时没发现哪里有错，删到就剩menu发现my:<menu> semantic:<div class='menu'>
2.定位元素的样式big.ui.buttons无效，.big.ui.buttons有效div要.
3.404:浏览器地址错误signup->singup
4.登入后退回重新刷新signup内存泄露警告
5.semantic UI dropdown 无效发现要加JavaScript脚本，但文档没说明只有HTML的布局图
6.express-session 中的 saveUninitialized : true和false切换无效。后面觉得肯定是哪里代码加载时用了session，果然
app.use((req, res, next) => {
res.locals.user = req.session.user
res.locals.success = req.flash('success').toString()
res.locals.error = req.flash('error').toString()
next()
})7.传值时因为有error未处理所以传不过去
app.use(function(req, res, next) {
- var err = new Error('Not Found');
- err.status = 404;
- next(err);
-});
-
-// error handler
-app.use(function(err, req, res, next) {
- // set locals, only providing error in development
- res.locals.message = err.message;
- res.locals.error = req.app.get('env') === 'development' ? err : {};
-
- // render the error page
- res.status(err.status || 500);
- res.render('error');
-});错误信息给异常了，没传到signup
8.throw new TypeError(‘Router.use() requires middleware function but got a ’ + gettype(fn));
抛出新的类型错误（Router.use() 需要中间件函数但是但是得到的是gettype(fn)）
const express = require('express')
const router = express.Router()
router.get('/', (req, res) => {
req.session.user = null
req.flash('success', '登出成功')
res.redirect('/article')
})忘记exportmodule.exports = router
9.TypeError: User.findOne(…).addCreateAt is not a function
.addCreateAt单词打错了
10.Cannot GET /posts/5a3a4040ac988e0cc7034da9
地址没错，请求方式没错，方法错了，写个demo一跑就出
11.测试代码打印一直有问题，发现res.redirect(‘back’) ：
A back redirection redirects the request back to the referer, defaulting to / when the referer is missing.
The HTTP referer (originally a misspelling of referrer[1]) is an HTTP header field that identifies the address of the webpage (i.e. the URI or IRI) that linked to the resource being requested.
重新设置头部信息
打印res.text有些奇怪不知道为什么
<html>
<head>
<meta charset="utf-8">
<title>myblog</title>
<link rel="stylesheet" href="//cdn.bootcss.com/semantic-ui/2.1.8/semantic.min.css">
<link rel="stylesheet" href="/css/style.css">
<script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
<script src="//cdn.bootcss.com/semantic-ui/2.1.8/semantic.min.js"></script>
</head>
<body>
<div class="nav">
<div class="ui grid">
<div class="four wide column"></div>
<div class="eight wide column">
<a href="/posts"><h1>myblog</h1></a>
<p>my first blog</p>
</div>
</div>
</div>
<div class="nav-setting">
<div class="ui buttons">
<div class="ui floating dropdown button">
<i class="icon bars"></i>
<div class="menu">
<a class="item" href="/signin">登录</a>
<a class="item" href="/signup">注册</a>
</div>
</div>
</div>
</div>
<div class="ui grid">
<div class="four wide column"></div>
<div class="eight wide column">
</div>
</div>
<script type="text/javascript">
$(document).ready(function () {
// 点击按钮弹出下拉框
$('.ui.dropdown').dropdown();
// 鼠标悬浮在头像上，弹出气泡提示框
$('.post-content .avatar-link').popup({
inline: true,
position: 'bottom center'
});
})
</script>
</body>
</html>
重定向到地址，res.text有网页的全部信息
<html>
<head>
<meta charset="utf-8">
<title>myblog</title>
<link rel="stylesheet" href="//cdn.bootcss.com/semantic-ui/2.1.8/semantic.min.css">
<link rel="stylesheet" href="/css/style.css">
<script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
<script src="//cdn.bootcss.com/semantic-ui/2.1.8/semantic.min.js"></script>
</head>
<body>
<div class="nav">
<div class="ui grid">
<div class="four wide column"></div>
<div class="eight wide column">
<a href="/posts"><h1>myblog</h1></a>
<p>my first blog</p>
</div>
</div>
</div>
<div class="nav-setting">
<div class="ui buttons">
<div class="ui floating dropdown button">
<i class="icon bars"></i>
<div class="menu">
<a class="item" href="/signin">登录</a>
<a class="item" href="/signup">注册</a>
</div>
</div>
</div>
</div>
<div class="ui grid">
<div class="four wide column"></div>
<div class="eight wide column">
<div class="ui error message">
<p>名字请限制在 1-10 个字符</p>
</div>
</div>
</div>
<div class="ui grid">
<div class="four wide column"></div>
<div class="eight wide column">
<form class="ui form segment" method="post" enctype="multipart/form-data">
<div class="field required">
<label>用户名</label>
<input placeholder="用户名" type="text" name="name">
</div>
<div class="field required">
<label>密码</label>
<input placeholder="密码" type="password" name="password">
</div>
<div class="field required">
<label>重复密码</label>
<input placeholder="重复密码" type="password" name="repassword">
</div>
<div class="field required">
<label>性别</label>
<select class="ui compact selection dropdown" name="gender">
<option value="m">男</option>
<option value="f">女</option>
<option value="x">保密</option>
</select>
</div>
<div class="field required">
<label>头像</label>
<input type="file" name="avatar">
</div>
<div class="field required">
<label>个人简介</label>
<textarea name="bio" rows="5"></textarea>
</div>
<input type="submit" class="ui button fluid" value="注册">
</form>
</div>
</div>
<script type="text/javascript">
$(document).ready(function () {
// 点击按钮弹出下拉框
$('.ui.dropdown').dropdown();
// 鼠标悬浮在头像上，弹出气泡提示框
$('.post-content .avatar-link').popup({
inline: true,
position: 'bottom center'
});
})
</script>
</body>
</html>
发现这问题主要是奇怪为什么test中有一条会对，对比后发现的
12.
想保留session发现无限的重定向。debug发现了路由中间件弄的无限回调
13.
表单中修改了名字，还是说未定义，但是单词都是对的，对比了以前的也一样，打印了消息发现名字没用上，找网页发现没有刷新，因为重新提交表单时页面不会刷新，要重开。
14.
使用提出的函数返回是promise，说then未定义。发现=》{}不能返回=》能返回