Vue.js 如何将数据加载到Vue组件中
我在localhost上有一个https的API端点,它提供原始json数据,如下所示:Vue.js 如何将数据加载到Vue组件中,vue.js,vuejs2,vue-component,fetch-api,Vue.js,Vuejs2,Vue Component,Fetch Api,我在localhost上有一个https的API端点,它提供原始json数据,如下所示: [{"day":"Monday","hours":43,"date":"2019-12-23T14:38:08.2112312-05:00"},{"day":"Tuesday","hours":36,"date":"2019-12-24T14:38:08.2130238-05:00"},{"day":"Wednesday","hours":39,"date":"2019-12-25T14:38:08.213
[{"day":"Monday","hours":43,"date":"2019-12-23T14:38:08.2112312-05:00"},{"day":"Tuesday","hours":36,"date":"2019-12-24T14:38:08.2130238-05:00"},{"day":"Wednesday","hours":39,"date":"2019-12-25T14:38:08.2130318-05:00"},{"day":"Thursday","hours":34,"date":"2019-12-26T14:38:08.2130329-05:00"},{"day":"Friday","hours":42,"date":"2019-12-27T14:38:08.2130338-05:00"}]
我不明白的是,为什么VUE.js会失败,出现“TypeError:“尝试获取资源时出现NetworkError。”
JSON正在为本地主机使用进行测试,并且cors已经启用。来自邮递员、浏览器、curl等的任何get请求都可以正常工作。只有当VUE.js进行fetch()调用时才会失败
VUE组件:
<template>
<div class="container">
<LineChart v-if="loaded" :chartdata="chartdata" :options="options" />
</div>
</template>
<script>
import LineChart from './LineChart.vue';
export default {
name: 'LineChartContainer',
components: { LineChart },
data: () => ({
loaded: false,
chartdata: null,
}),
async mounted() {
this.loaded = false;
try {
const { daysWorked } = await fetch(
'https://localhost:5001/api/timeworked',
);
console.log('days worked data:', daysWorked);
this.chartdata = daysWorked;
this.loaded = true;
} catch (e) {
console.error("Couldn't access data:", e);
}
},
};
</script>
从“/LineChart.vue”导入线形图;
导出默认值{
名称:“LineChartContainer”,
组件:{LineChart},
数据:()=>({
加载:false,
chartdata:null,
}),
异步装入(){
this.loaded=false;
试一试{
const{daysWorked}=等待获取(
'https://localhost:5001/api/timeworked',
);
console.log('days worked data:',daysWorked);
this.chartdata=daysWorked;
this.loaded=true;
}捕获(e){
console.error(“无法访问数据:”,e);
}
},
};
感谢您的任何想法、建议或提示!这不是Vue的问题,而是您获取信息的方式的问题 看一看 试一试
。。。
const{daysWorked}=wait fetch('https://localhost:5001/api/timeworked')
.then(r=>r.json());
...
这应该会有帮助。您的localhost/dev env是否设置为支持
https
?@AndrewNolan当然是这样,尽管我也尝试过禁用它,但没有成功。尝试添加fetch(“”,{mode:'cors'))或者“no cors”idk您的服务器是如何配置的。还可以查看DevTools网络选项卡以了解导致问题的原因。实际上,它只是缺少json方法上的()。因此,r.json()完成了这项任务,谢谢。