在Vuetify中上传文件 [英] File upload in vuetify

问题描述

我正在Vuejs的前端使用vuetify组件.我想用文件上传创建一个用户注册表格.我可以在vuetify中使用v-text-field创建表单，但如何上传文件.使用哪个组件或任何其他替代方式.

I'm using vuetify components for front-end in Vuejs. I want to create a user registeration form with file upload. I'm able to create a form using v-text-field in vuetify but how to upload the file. Which component to use or any other alternative way.

推荐答案

Vue JS直到今天还没有文件输入功能，因此您可以调整v-text-field使其像图像输入字段一样工作.概念是创建一个文件输入字段，然后使用CSS将其隐藏，然后在v-text-field中添加一个事件以触发该特定文件输入字段以上传图像.我已经附上了代码片段，请务必使用它，我也确实使用vue和vuetify创建了一个小提琴，请访问此处.谢谢！

Vue JS do not have file-input feature till today, so you can tweak v-text-field to work like image input field. The concept is, create an file input field and then hide it using css, and add an event in v-text-field to trigger that specific file input field to upload image. I have attached snippet please do play with that, and I also do have a fiddle created using vue and vuetify, visit here. Thanks!

new Vue({
  el: '#app',
  data: () => ({
    title: "Image Upload",
    dialog: false,
    imageName: '',
    imageUrl: '',
    imageFile: ''
  }),

  methods: {
    pickFile() {
      this.$refs.image.click()
    },

    onFilePicked(e) {
      const files = e.target.files
      if (files[0] !== undefined) {
        this.imageName = files[0].name
        if (this.imageName.lastIndexOf('.') <= 0) {
          return
        }
        const fr = new FileReader()
        fr.readAsDataURL(files[0])
        fr.addEventListener('load', () => {
          this.imageUrl = fr.result
          this.imageFile = files[0] // this is an image file that can be sent to server...
        })
      } else {
        this.imageName = ''
        this.imageFile = ''
        this.imageUrl = ''
      }
    }
  }
})

<link href='https://fonts.googleapis.com/css?family=Roboto:300,400,500,700|Material+Icons' rel="stylesheet">
<link href="https://unpkg.com/vuetify/dist/vuetify.min.css" rel="stylesheet">
<div id="app">
  <v-app>
    <v-toolbar dark color="primary">
      <v-toolbar-side-icon></v-toolbar-side-icon>
      <v-toolbar-title class="white--text">{{ title }}</v-toolbar-title>
      <v-spacer></v-spacer>
      <v-btn icon @click="dialog = !dialog">
        <v-icon>link</v-icon>
      </v-btn>
    </v-toolbar>
    <v-content>
      <v-container fluid>
        <v-flex xs12 class="text-xs-center text-sm-center text-md-center text-lg-center">
          <img :src="imageUrl" height="150" v-if="imageUrl"/>
          <v-text-field label="Select Image" @click='pickFile' v-model='imageName' prepend-icon='attach_file'></v-text-field>
          <input
            type="file"
            style="display: none"
            ref="image"
            accept="image/*"
            @change="onFilePicked"
          >
        </v-flex>
        <v-dialog v-model="dialog" max-width="290">
          <v-card>
            <v-card-title class="headline">Hello World!</v-card-title>
            <v-card-text>
              Image Upload Script in VUE JS
              <hr>
              Yubaraj Shrestha
              <br>http://yubarajshrestha.com.np/
            </v-card-text>
            <v-card-actions>
              <v-spacer></v-spacer>
              <v-btn color="green darken-1" flat="flat" @click.native="dialog = false">Close</v-btn>
            </v-card-actions>
          </v-card>
        </v-dialog>
      </v-container>
    </v-content>
  </v-app>
</div>
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/vuetify/dist/vuetify.js"></script>

最新版本(V2.0.5)在编辑此日期为2019年8月11日的帖子时，有一个专用的文件输入选项.请点击以下链接获取官方文档: https://vuetifyjs.com/en/components/file -输入.

Latest version (V2.0.5) while editing this post dated Aug 11, 2019, there's a dedicated file input option. Please follow the link below for official documentation: https://vuetifyjs.com/en/components/file-inputs.

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