我有具有此结构的'modified_data.json'JSON文件。
{
"data": [
[
{
"account_id": " "
"account_name": " "
},
{
"account_id": " "
"account_name": " "
},
{
"account_id": " "
"account_name": " "
},
{
"account_id": " "
"account_name": " "
}
],
[
{
"account_id": " "
"account_name": " "
},
{
"account_id": " "
"account_name": " "
},
{
"account_id": " "
"account_name": " "
}
],
[
{
"account_id": " "
"account_name": " "
},
{
"account_id": " "
"account_name": " "
},
{
"account_id": " "
"account_name": " "
}
]
]
}
我想从每个数组中获取第一个对象的account_name ...
有人可以给我解决方案吗?
现在我正在使用Vue.js来显示它,我可以使用python获取每个数据,但是Vue.js还不熟悉我...请帮助我:)
答案 0 :(得分:1)
好吧,您将必须添加为Vue编写的代码
如果您使用的是Vue应用,则可以执行以下操作
<script>
import json from './json/data.json'
export default{
data(){
return{
myJson: json
}
}
}
</script>
,如果您将其写在html页面中。您可以分两步完成。
第一个方法是将文件链接添加为脚本
<script src="../file.json"></script>
然后在vue脚本部分中,可以将其分配给数据对象。
var ele = new Vue({
el : "#YourElement",
data : ObjName
});
“ ObjName”是文件中json对象的名称。
ObjName :
{
"data": [
[
{
"account_id": " "
"account_name": " "
}
答案 1 :(得分:1)
您可以使用一个computed property来具有每个数组第一个对象的account_name
属性:
const data = {
"data": [
[
{
"account_id": "11",
"account_name": "name11"
},
{
"account_id": "12",
"account_name": "name12"
},
{
"account_id": "13",
"account_name": "name13"
},
{
"account_id": "14",
"account_name": "name14"
}
],
[
{
"account_id": "21",
"account_name": "name21"
},
{
"account_id": "22",
"account_name": "name22"
},
{
"account_id": "23",
"account_name": "name23"
}
],
[
{
"account_id": "31",
"account_name": "name31"
},
{
"account_id": "32",
"account_name": "name32"
},
{
"account_id": "33",
"account_name": "name33"
}
]
]
}
new Vue({
el: '#demo',
data() {
return {
data: data.data
}
},
computed: {
firstAccountNames() {
return this.data.map(dataSet => dataSet[0].account_name)
}
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="demo">
<ul>
<li v-for="name in firstAccountNames">
{{ name }}
</li>
</ul>
</div>
答案 2 :(得分:0)
我解决了!这是代码!
var app = new Vue({
el: '#app',
data: {
datas: []
},
computed: {
getAccountNames() {
return this.datas.map(dataSet => dataSet[0].account_name)
}
},
mounted() {
var self = this
$.getJSON("modified_data.json", function(json_data) {
self.datas = json_data.data
})
}
})
无论如何,另一个问题... “ this”和“ self”有什么区别? 我认为“ self”等于“ this”,但是当我只使用“ this”时,它有错误,但是“ self”效果很好...有人可以告诉我区别吗?