vue表单上传图片数据（vue-cropper插件实现图片截取上传组件封装）

<template>
  <li>
    <a-upload
      name="avatar"
      list-type="picture-card"
      class="avatar-uploader"
      :show-upload-list="false"
      :custom-request="customRequest"
      :before-upload="beforeUpload"
      :style="`width: ${width}; height: ${height};`"
    >
      <img
        v-if="imageUrl && !loading"
        :src="imageUrl"
        alt="avatar"
        :style="`width: ${width}; height: ${height};`"
      />
      <li v-else>
        <a-icon :type="loading ? 'loading' : 'plus'" />
        <li class="ant-upload-text">上传图片</li>
      </li>
    </a-upload>
    <a-modal
      v-model="imageCut.isShowModal"
      title="图片截取"
      width="400px"
      @ok="finish"
      @cancel="imageCut.close"
    >
      <li class="cropper-content" v-if="imageCut.isShowModal">
        <li class="cropper" style="text-align:center">
          <vueCropper
            ref="cropper"
            :img="imageCut.imgFile"
            :outputSize="outputSize"
            :outputType="outputType"
            :info="info"
            :full="full"
            :canMove="canMove"
            :canMoveBox="canMoveBox"
            :original="original"
            :autoCrop="autoCrop"
            :fixed="fixed"
            :fixedNumber="fixedNumber"
            :centerBox="centerBox"
            :infoTrue="infoTrue"
            :fixedBox="fixedBox"
          ></vueCropper>
        </li>
      </li>
    </a-modal>
  </li>
</template>

<script>
import { uploadImage } from '@/api/common'
import { VueCropper } from "vue-cropper";
export default {
  name: 'ImageUpload',
  components: { VueCropper },
  data() {
    return {
      loading: false,
      imageCut: {
        isShowModal: false,
        imgFile: '',
        init: imgFile => {
          this.imageCut.imgFile = imgFile
          this.imageCut.isShowModal = true
        },
        close: () => {
          this.imageCut.imgFile = ''
          this.imageCut.isShowModal = false
        }
      }
    }
  },
  props: {
    imageUrl: String,
    width: {
      type: String,
      default: '100px'
    },
    height: {
      type: String,
      default: '100px'
    },
    canCut: {
      type: Boolean,
      default: false
    },
    info: {
      type: Boolean,
      default: false
    }, // 裁剪框的大小信息
    outputSize: {
      type: Number,
      default: 0.8
    }, // 裁剪生成图片的质量
    outputType: {
      type: String,
      default: .jpg" alt="vue表单上传图片数据（vue-cropper插件实现图片截取上传组件封装）" border="0" />

<style lang="less">
.avatar-uploader > .ant-upload {
  width: 100%;
  height: 100%;
}
.ant-upload-select-picture-card i {
  font-size: 32px;
  color: #999;
}

.ant-upload-select-picture-card .ant-upload-text {
  margin-top: 8px;
  color: #666;
}
.cropper-content {
  .cropper {
    width: auto;
    height: 400px;
  }
}
</style>

<image-upload
        :imageUrl="form.diagramUrl"
        @uploadSuccess="uploadSuccess"
        width="160px"
        height="90px"
        :can-edit="canCut"
        :fixed-number="[16,9]"
      />