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vue3 + ts + element-plus（el-upload + vuedraggable实现上传OSS并排序）

article 2025/1/9 18:50:05

这里创建项目就不多说了

安装element-plus

npm install element-plus

安装vuedraggable

npm install vuedraggable

安装ali-oss

npm install ali-oss

这里是封装一下：在components创建文件夹jc-upload>jc-upload.vue

在封装的过程中遇到了一个问题就是draggable和el-upload上传按钮独占一行，显然不是我们需要的效果，先看问题

百度了一下，没有找到什么解决办法，这里通过一行css解决以上问题，如有大佬有更好的方案可以分享一下

.draggable-container {
     display: contents;
 }

完整代码

<template>
    <div class="upload-container">
      <draggable class="draggable-container" v-model="newsFileList" itemKey="url" ghost-class="ghost" animation="300">
        <template #item="{ element }">
          <ul class="el-upload-list el-upload-list--picture-card">
            <li :key="element.url" class="el-upload-list__item is-success animated">
              <img class="el-upload-list__item-thumbnail" :src="element.url" alt="">
              <label class="el-upload-list__item-status-label">
                  <i class="el-icon el-icon--upload-success el-icon--check">
                    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1024 1024">
                      <path fill="currentColor"
                          d="M406.656 706.944 195.84 496.256a32 32 0 1 0-45.248 45.248l256 256 512-512a32 32 0 0 0-45.248-45.248L406.592 706.944z">
                      </path>
                    </svg>
                  </i>
              </label>
              <i class="el-icon-close"></i>
              <span class="el-upload-list__item-actions">
                  <!-- 预览 -->
                  <span class="el-upload-list__item-preview"
                      @click="handlePictureCardPreview(element)">
                      <i class="el-icon el-icon--zoom-in">
                        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1024 1024">
                          <path fill="currentColor"
                              d="m795.904 750.72 124.992 124.928a32 32 0 0 1-45.248 45.248L750.656 795.904a416 416 0 1 1 45.248-45.248zM480 832a352 352 0 1 0 0-704 352 352 0 0 0 0 704zm-32-384v-96a32 32 0 0 1 64 0v96h96a32 32 0 0 1 0 64h-96v96a32 32 0 0 1-64 0v-96h-96a32 32 0 0 1 0-64h96z">
                          </path>
                        </svg>
                      </i>
                  </span>
                  <!-- 删除 -->
                  <span class="el-upload-list__item-delete" @click="handleRemove(element)">
                      <i class="el-icon el-icon--zoom-in">
                        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1024 1024">
                          <path fill="currentColor"
                              d="M160 256H96a32 32 0 0 1 0-64h256V95.936a32 32 0 0 1 32-32h256a32 32 0 0 1 32 32V192h256a32 32 0 1 1 0 64h-64v672a32 32 0 0 1-32 32H192a32 32 0 0 1-32-32V256zm448-64v-64H416v64h192zM224 896h576V256H224v640zm192-128a32 32 0 0 1-32-32V416a32 32 0 0 1 64 0v320a32 32 0 0 1-32 32zm192 0a32 32 0 0 1-32-32V416a32 32 0 0 1 64 0v320a32 32 0 0 1-32 32z">
                          </path>
                        </svg>
                      </i>
                  </span>
              </span>
            </li>
          </ul>
        </template>
      </draggable>
      <el-upload 
        ref="uploadRef" 
        :show-file-list="false" 
        :class="newsFileList.length >= limit ? 'upload-hide' : ''"
        :action="action" 
        :accept="accept" 
        list-type="picture-card" 
        :file-list="newsFileList" 
        :on-remove="handleRemove" 
        :on-success="onSuccess" 
        :limit="limit"
        :disabled="disabled"
        with-credentials 
        :multiple="limit > 1? true : false"
        drag>
        <el-icon><Plus /></el-icon>
      </el-upload>

      <el-dialog v-model="dialogVisible">
        <img class="uy-w-p-100" w-full :src="dialogImageUrl" alt="Preview Image" />
      </el-dialog>
    </div>
</template>

<script lang="ts" setup>
import { reactive, ref, watch } from 'vue'
import { ElNotification, type UploadFile } from 'element-plus'
import OSS from 'ali-oss';
import draggable from 'vuedraggable';

const $emit = defineEmits(['success'])

/**
 * 组件props
 */
const props = defineProps({
  action: {
    type: String,
    // default: `${import.meta.env.VITE_SERVE}/api/Osstoken/getToken`
    default: `/api/api/Osstoken/getToken`
  },
  fileList: {
    type: Array as () => UploadFile[],
    default: () => []
  },
  limit: {
    type: Number,
    default: 1
  },
  accept: {
    type: String,
    default: 'image/*'
  },
  disabled: {
    type: Boolean,
    default: false
  }
})

// data数据
const uploadRef = ref()
const dialogImageUrl = ref('')
const dialogVisible = ref(false)
const disabled = ref(false)
let newsFileList = ref(props.fileList);

// methods方法
const handleRemove = (file: UploadFile) => {
  const index = newsFileList.value.findIndex(item => item.url === file.url);
  newsFileList.value.splice(index, 1);
  $emit('success', newsFileList)
};

const handlePictureCardPreview = (file: UploadFile) => {
  dialogImageUrl.value = file.url!
  dialogVisible.value = true
};

const uploadAliyun = async (res: any, file: UploadFile, fileList: UploadFile[]) => {
  if (res.code === 0) {
    let date = new Date();
    let year = date.getFullYear();
    let month = date.getMonth() + 1;
    let day = date.getDate();
    let formattedMonth = month.toString().padStart(2, '0');
    let formattedDay = day.toString().padStart(2, '0');
    const filePath = `/uploads/${year}/${formattedMonth}/${formattedDay}/${Date.parse(date.toString()) + parseInt((Math.random() * (100000 - 10000 + 1) + 10000).toString(), 10).toString()}.${file.raw?.name.split('.').pop()}`
    let client = new OSS({
      accessKeyId: res.data.AccessKeyId, //OSS的用户名
      accessKeySecret: res.data.AccessKeySecret, //OSS密钥
      region: res.data.region, //域名是创建Buckiet，时选择的服务器地址 比如选择 华南3（广州）：oss-cn-guangzhou
      bucket: res.data.bucket,  //创建Buckiet的名称
      stsToken: res.data.SecurityToken //临时Token
    })
    const put = async () => {
      try {
        const result = await client.put(filePath, file.raw!);
        if(result.res.status === 200) {
          if(props.accept === 'video/*') {
            file.url = (result.res as any).requestUrls[0] + '?x-oss-process=video/snapshot,t_0,f_jpg';
          }
          newsFileList.value.push({
            url: (result.res as any).requestUrls[0],
            name: '',
            status: 'success',
            uid: 0
          })
          $emit('success', newsFileList)
        }
      } catch (err) {
        ElNotification.success({ message: '上传失败~' });
      }
    }
    put();
  } else {
    ElNotification.success({ message: res.msg });
  }
};

const onSuccess = (res: any, file: UploadFile, fileList: UploadFile[]) => {
  uploadAliyun(res, file, fileList)
};

watch(() => props.fileList, (newVal) => {
  newsFileList.value = newVal
}, { deep: true })

watch(() => newsFileList.value, (newVal) => {
  if(JSON.stringify(newVal) !== JSON.stringify(props.fileList)) {
    $emit('success', newVal)
  }
}, { deep: true })
</script>

<style lang="scss" scoped>
:deep(.el-upload-dragger) {
  padding: 56px 0;
  background-color: transparent;
  border: none;
}

.upload-hide {
    position: relative;

    :deep(.el-upload--picture-card) {
        display: none;
    }
}

.upload-container {
  display: flex;
  flex-wrap: wrap;

  .draggable-container {
    display: contents;
  }
}
</style>

对以上代码解释一下

重点解决el-upload上传按钮独占一行问题

.upload-container {
  display: flex;
  flex-wrap: wrap;

  .draggable-container {
    display: contents;
  }
}

主要对limit最大限制对上传按钮隐藏

.upload-hide {
    position: relative;

    :deep(.el-upload--picture-card) {
        display: none;
    }
}

action主要获取OSS上传凭证这里用了代理，通过前端请求后端接口会拒绝访问，线上不需要代理

这段代码主要为了更新排序后的数组

watch(() => newsFileList.value, (newVal) => {
  if(JSON.stringify(newVal) !== JSON.stringify(props.fileList)) {
    $emit('success', newVal)
  }
}, { deep: true })

这里为什么选用ref并不是为了省事ref一把梭，刚开始我用的 reactive但是在排序的时候一直回弹，具体原因没有深究，换成ref就没问题了