我第一次玩vue并且敲了一个简单的测试文件。我有一个表由api调用的数据填充,并使用vue路由器创建每个项目的链接,但此链接不显示内容。网络显示它向api发出请求,但由于某种原因,模板没有显示(甚至没有显示硬编码的内容)。为什么?另外,为什么路由内容不显示在第一个路由器视图上,而只显示在tbl组件中的路由器视图?
<!doctype html>
<html lang="en">
<head>
<title>Vue.js test</title>
<meta charset="utf-8">
</head>
<body>
<div id="app">
<!-- this route displays correctly -->
<router-link to="/foo">Go to Foo</router-link>
<table-notification/>
<!-- content is not displayed here - why? -->
<router-view></router-view>
</div>
<script src="https://unpkg.com/vue"></script>
<script src="https://unpkg.com/vue-router"></script>
<script src="axios.min.js"></script>
<script>
const foo = {template:'<div>asdfasdf</div>',};
var router = new VueRouter({
routes: [
{path: '/foo', component: foo},
{path: '/notifications/:id', component: notification_view}
]
});
var app = new Vue({
router: router
}).$mount('#app');
var notification_view = new Vue({
router: router,
template: `
<div>iop
id: {{ obj.id}}<br/>
title: {{ obj.data.title}}<br/>
message: {{obj.data.message}}<br/>
</div>
`,
data: {
obj: {},
id: 0,
},
watch: {
'$route' (to, from) {
// check for id in url
if (this.$route.params.id)
this.update_notification();
}
},
methods: {
update_notification: function(){
this.id = this.$route.params.id;
axios.get('http://api2/notifications/' + this.id)
.then(response => {this.obj = response.data.packet;});
}
}
});
var tbl = new Vue({
router:router,
el: 'table-notification',
template: `
<div>
<table>
<tr>
<th>Title</th>
<th>Created</th>
<th>Actions</th>
</tr>
<tr v-for="obj in objects">
<td><router-link :to="link(obj)">{{obj.data.title}}</router-link></td>
<td>{{obj.created}}</td>
<td>actions</td>
</tr>
</table>
<router-view/>
<!-- why must router-view be here, and why isn't notification_view showing any output?-->
</div>
`,
methods: {
link: function(obj) {return '/notifications/' + obj.id;}
},
data: {
objects: [],
},
created: function(){
axios.get('http://api2/notifications').
then(response =>
{
this.objects = response.data.packet;
});
}
});
</script>
</body>
</html>
答案 0 :(得分:2)
我认为你误解了Vue实例的想法......
在你的例子中你有:
一个JSON foo,我认为它是一个组件,
安装在#app元素
另一个名为notification_view
的实例使用相同的路由器,我认为是另一个组件
另一个tbl实例,我认为它是另一个组件
您实际上需要一个实例和一组组件,如下例所示: