获取图片文件

使用了iviewui的upload组件来获取图片文件

          <Upload :action="" :before-upload="handleBeforeUpload">
            <Button icon="ios-cloud-upload-outline">Upload files</Button>
          </Upload>

同时由于不是真的需要上传到对应的地址, 所以设置before-upload对应的函数使其返回false终止上传

      handleBeforeUpload(file){
        this.form_submit.picture = file
        return false
      },

此时, 在form_submit就已经拿到文件了

上传

 submit(){
        // 设置请求头为 'Content-Type': 'multipart/form-data', 使请求可以上传图片
        let config = {
          headers: {
            'Content-Type': 'multipart/form-data'
          }
        }
        //  将json转换为FormData类型的数据
        let formData = new FormData();
        for(let key in this.form_submit){
          formData.append(key, this.form_submit[key])
        }
        // 发送请求
        postImage(formData,config).then(res => {
            console.log(res.data)
        })
      }

源码

<template>
  <div>
    <div @click="addscreen">
      <Card >
        <p style="font-size: 22px;">新增图片</p>
      </Card>
    </div>
    <Modal
      v-model="modal"
      title="添加图片"
      @on-ok="submit"
    >
      <Form :model="form_submit" :label-width="80">
        <FormItem label="标题" >
          <Input v-model="form_submit.title" placeholder="请输入标题"/>
        </FormItem>
        <FormItem label="描述" >
          <Input v-model="form_submit.description" placeholder="请输入描述"/>
        </FormItem>
        <FormItem label="图片" >
          <Upload :action="" :before-upload="handleBeforeUpload">
            <Button icon="ios-cloud-upload-outline">Upload files</Button>
          </Upload>
        </FormItem>
      </Form>
    </Modal>
  </div>
</template>

<script>
  import { postImage } from "./api"

  export default {
    name: "add-image",
    components: {
    },
    data () {
      return {
        modal: false,
        form_submit: {
          title: '',
          description: '',
          picture: '',
        },
      }
    },
    methods:{
      addscreen(){
        this.modal = true
      },
      handleBeforeUpload(file){
        this.form_submit.picture = file
        return false
      },
      submit(){
        let config = {
          headers: {
            'Content-Type': 'multipart/form-data'
          }
        }
        let formData = new FormData();
        for(let key in this.form_submit){
          formData.append(key, this.form_submit[key])
        }
        postImage(formData,config).then(res => {
            console.log(res.data)
        })
      }
    },
  }
</script>

<style scoped>

</style>