我有Express和MongoDB的Node应用程序。它具有3条路线:/ articles,/ directions和/ research。所有这3条路线都会呈现db中不同集合的标题,当我单击title时,它将导航至其余数据,并且路径如下所示:http:// localhost:3000 / articles / 59df896b7f13f25b9009c42e。当我尝试通过链接从该路由导航到/ directions时,它的工作原理和路径如下所示:http:// localhost:3000 / directions应该是正确的。但是,当我尝试导航(从此处http:// localhost:3000 / articles / 59df896b7f13f25b9009c42e)导航到/ research时,路径看起来像这样http:// localhost:3000 / articles / research并引发错误。正确的路径应为:http:// localhost:3000 / research。仅当我尝试导航到/ research时,它才起作用。所有3条路由都使用相同的逻辑和代码。我只是用说明等代替文章。
所以,我的问题是为什么应用程序导航到错误的路径?
代码片段-app / routes / directions.js,app / routes / articles.js和app / routes / researchers.js(我收到TypeError:无法读取//中的未定义属性'author',但只有一篇文章,但只有在导航时到/ research,如前所述。如果我从/ direction做相同的操作,则会收到相同的错误,但如果我尝试从/ research导航到任何路由,则效果很好):
// get one direction
router.get('/:id', (req, res) =>
Direction.findById(req.params.id, (err, direction) =>
User.findById(direction.author, (err, user) =>
res.render('direction', {direction, author: user.name}))))
// get one article
router.get('/:id', (req, res) =>
Article.findById(req.params.id, (err, article) =>
User.findById(article.author, (err, user) =>
res.render('article', {article, author: user.name}))))
// get one researcher
router.get('/:id', (req, res) =>
Researcher.findById(req.params.id, (err, researcher) =>
User.findById(researcher.author, (err, user) =>
res.render('researcher', {researcher, author: user.name}))))
编辑。添加了其他代码片段。
来自app / app.js的代码片段
// article route
app.get('/news', (req, res) =>
Article.find({}, (err, articles) => {
if (err) {
console.log(err)
} else {
res.render('news', {title: 'articles', articles})
}
}))
// direction route
app.get('/direct', (req, res) =>
Direction.find({}, (err, directions) => {
if (err) {
console.log(err)
} else {
res.render('direct', {title: 'directions', directions})
}
}))
// researcher route
app.get('/research', (req, res) =>
Researcher.find({}, (err, researchers) => {
if (err) {
console.log(err)
} else {
res.render('research', {title: 'researchers', researchers})
}
}))
app / views / research.pug
extends layout
block content
h1.page-header #{title}
ul.list-group
each researcher, i in researchers
li.list-group-item
a.newsLinks(href='/researchers/' + researcher._id)= researcher.title
app / views / article.pug
extends layout
block content
h1.page-header= article.title
h5 Written by #{author}
p= article.body
hr
if user
if user.id ==article.author
a.btn.btn-default(href='/articles/edit/' + article._id)
span.glyphicon.glyphicon-edit
| Edit
a.btn.btn-danger.delete-article(href='#' data-id=article._id)
span.glyphicon.glyphicon-remove
| Delete
app / views / layout.pug
li
a(href='/news')
| News
if user
li
a(href='/articles/add')
span.glyphicon.glyphicon-plus
| Add Article
li
a(href='/direct')
| Direction
if user
li
a(href='/directions/add')
span.glyphicon.glyphicon-plus
| Add Direction
li
a(href='research')
| Researchers
if user
li
a(href='/researchers/add')
span.glyphicon.glyphicon-plus
| Add Researcher
最佳答案
您的hrefs似乎有问题。
li
a(href='research')
| Researchers
应该
li
a(href='/research')
| Researchers
相对于您的根文件夹。
关于javascript - 在特定路线之间移动时出错,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/46714861/