vue.js http 获取 web api url 渲染列表 [英] vue.js http get web api url render list

问题描述

我正在使用 vue.js 来 http 从 web api 获取项目列表并将它们呈现在列表中，但目前该列表仅呈现响应在数组中返回的八项中的一项，请帮助！https://codepen.io/mruanova/pen/mprEap?editors=1111

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/0.12.7/vue.min.js"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/vue-resource/0.1.13/vue-resource.min.js"></script><div id="应用程序">{{项目}}<ul><li v-for="project in projects">PROJECT {{project.ProjectId}}</li>

<脚本>新的 Vue({el: '#app',数据: {项目:[]},准备好:函数(){var self = this;const url = "https://246gg84zg8.execute-api.us-west-2.amazonaws.com/prod/projects";this.$http.get(url).then(function (data) {console.log(JSON.parse(data.response).Items.length)console.log(JSON.parse(data.response).Items[0].ProjectId)self.$set('projects', JSON.parse(data.response).Items)})}})

当前结果:

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

项目

预期:

项目 1项目二项目三项目 4项目5项目 6项目 7项目 8

解决方案

这里有几个问题.首先，您使用的是非常 Vue 的旧版本，至少可以说这是不可取的.一旦我清理了您发布的 codepen 示例，引入了 Vue 的当前版本，并将内容更新为更惯用的方式，您的代码的基本概念就可以正常工作了.

https://codepen.io/nickforddesign/pen/rpMLgV?editors=1011

new Vue({el: '#app',数据() {返回 {项目:[]}},创建(){const url = 'https://246gg84zg8.execute-api.us-west-2.amazonaws.com/prod/projects';this.$http.get(url).then(data => {const items = JSON.parse(data.response).Itemsitems.map(item => {//推送到项目数组以确保 Vue 的反应性工作this.projects.push(item)})})}})

I am using vue.js to http get from a web api a list of projects and render them in a list but currently the list is only rendering one items of the eight that response is returning in the array, please help! https://codepen.io/mruanova/pen/mprEap?editors=1111

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/0.12.7/vue.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue-resource/0.1.13/vue-resource.min.js"></script>
<div id="app">
{{projects}}
<ul>
  <li v-for="project in projects">PROJECT {{project.ProjectId}}</li>
</ul>
</div>
<script>
    new Vue({
        el: '#app',
        data: {
            projects: []
        },
        ready: function () {
            var self = this;
            const url = "https://246gg84zg8.execute-api.us-west-2.amazonaws.com/prod/projects";
            this.$http.get(url).then(function (data) {
                console.log(JSON.parse(data.response).Items.length)
             console.log(JSON.parse(data.response).Items[0].ProjectId)
                self.$set('projects', JSON.parse(data.response).Items)
            })
        }
    })
</script>

current result:

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PROJECT

expected:

PROJECT 1 PROJECT 2 PROJECT 3 PROJECT 4 PROJECT 5 PROJECT 6 PROJECT 7 PROJECT 8

解决方案

There are several problems here. First of all, you are using a very old version of Vue, which is inadvisable, to say the least. As soon as I cleaned up the codepen example you posted, pulled in a current version of Vue, and updated things to be more idiomatic, the basic concept of your code works just fine.

https://codepen.io/nickforddesign/pen/rpMLgV?editors=1011

new Vue({
  el: '#app',
  data() {
    return {
      projects: []
    }
  },
  created() {
    const url = 'https://246gg84zg8.execute-api.us-west-2.amazonaws.com/prod/projects';
    this.$http.get(url).then(data => {
      const items = JSON.parse(data.response).Items
      items.map(item => {
        // push to the projects array to make sure Vue's reactivity works
        this.projects.push(item)
      })
    })
  }
})

这篇关于vue.js http 获取 web api url 渲染列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！