digital-medicine-front/src/components/FileUpload/index.vue

<template>
    <transition-group class="upload-file-list flex1 ov-hd" :class="{ white }" name="el-fade-in-linear" tag="div">
        <el-upload v-if="fileList.length < limit || loading" :multiple="multiple" :action="uploadFileUrl" :before-upload="handleBeforeUpload" :file-list="fileList" :limit="limit" :on-error="handleUploadError" :on-exceed="handleExceed" :on-success="handleUploadSuccess" :show-file-list="false" :headers="headers" :accept="fileType.map(item => '.'+ item).toString()" class="upload-file-uploader" ref="fileUploadRef" :on-progress="handleOnProgress">
            <!-- 上传按钮 -->
            <!-- <div class="btn-file f-14 c-666">上传</div> -->
            <el-button class="h-plain mb10" type="primary" plain>
                <el-icon><Upload /></el-icon>
                {{ btnText }}
            </el-button>
        </el-upload>
        <el-row :gutter="60">
            <el-col :span="span" v-for="(file, index) in fileList" :key="index">
                <div class="upload-list-img d-flex a-c" :class="{ mt10: index }">
                    <template v-if="file.url">
                        <a v-if="['png', 'jpg', 'jpeg', 'bmp'].includes(fileExt(file.name))" class="flex1 right-wrap ov-hd" @click="show2 = true; lookIndex = index">
                            <el-tooltip class="box-item" effect="dark" :content="file.name" placement="top">
                                <div class="item-text sv-1 flex1">{{ file.name }}</div>
                            </el-tooltip>
                        </a>
                        <a v-else class="flex1 right-wrap ov-hd" :href="`${file.url}`" :underline="false" target="_blank">
                            <el-tooltip class="box-item" effect="dark" :content="file.name" placement="top">
                                <div class="item-text sv-1 flex1">{{ file.name }}</div>
                            </el-tooltip>
                        </a>
                    </template>
                    <div v-else class="flex1 right-wrap ov-hd p-rtv">
                        <el-tooltip class="box-item" effect="dark" :content="file.name" placement="top">
                            <div class="item-text sv-1">{{ file.name }}</div>
                        </el-tooltip>
                        <div class="progress" :style="{ width: file.percentage + '%' }"></div>
                    </div>
                    <div class="delete-item d-flex a-c j-c" @click="handleDelete(index)">
                        <el-icon color="#FF3A3A" :size="20"><Close /></el-icon>
                    </div>
                </div>
            </el-col>
            <el-col v-if="isShowTip" :span="span">
                <div class="c-999 f-12" style="line-height: 1.6;padding-top: 10px;">
                    {{ tipText }}
                </div>
            </el-col>
        </el-row>
    </transition-group>
    <ImageViewer v-model:show="show2" :imgs="fileList.map((item: any) => item.url)" :index="lookIndex"></ImageViewer>
</template>

<script setup lang="ts">
import { listByIds, delOss } from '@/api/system/oss';
import { propTypes } from '@/utils/propTypes';
import { globalHeaders } from '@/utils/request';
import { fileExt } from '@/utils/ruoyi';
import { ImageViewer } from '@/views/models';

const props = defineProps({
  modelValue: [String, Object, Array],
  // 数量限制
  limit: propTypes.number.def(1),
  // 大小限制(MB)
  fileSize: propTypes.number.def(5),
  // 文件类型, 例如['png', 'jpg', 'jpeg', 'bmp']
  fileType: propTypes.array.def(['doc', 'xls', 'ppt', 'txt', 'pdf']),
  // 是否显示提示
  isShowTip: propTypes.bool.def(true),
  tipText: propTypes.string.def(''),
  span: propTypes.number.def(24),
  isObject: propTypes.bool.def(false),
  multiple: propTypes.bool.def(true),
  white: propTypes.bool.def(false),
  // 上传数据格式
  format: propTypes.string.def('id'),
  btnText: propTypes.string.def('上传文件')
});
const loading = ref(false);
const lookIndex = ref(0);
const show2 = ref(false);
const { proxy } = getCurrentInstance() as ComponentInternalInstance;
const emit = defineEmits(['update:modelValue', 'change']);
const number = ref(0);
const uploadList = ref<any[]>([]);

const baseUrl = import.meta.env.VITE_APP_BASE_API;
const uploadFileUrl = ref(baseUrl + '/resource/oss/upload'); // 上传文件服务器地址
const headers = ref(globalHeaders());

const fileList = ref<any[]>([]);
const showTip = computed(() => props.isShowTip && (props.fileType || props.fileSize));

const fileUploadRef = ref<ElUploadInstance>();
const progressList = ref<any>([]);
watch(
  () => props.modelValue,
  async (val) => {
      if (val) {
          let temp = 1;
          // 首先将值转为数组
          let list = [];
           if (props.format === 'array' && Array.isArray(val)) {
              list = val;
           } else if (props.format === 'object' || props.isObject) {
              list = [val];
          } else {
              const res = await listByIds(val as string);
              list = res.data.map((oss) => {
                  const data = { name: oss.originalName, url: oss.url, ossId: oss.ossId };
                  return data;
              });
          }
          // 然后将数组转为对象数组
          fileList.value = list.map((item) => {
              item = { name: item.fileName ? item.fileName : item.name, url: item.url, fileSize: item.fileSize, fileType: item.fileType };
              item.uid = item.uid || new Date().getTime() + temp++;
              return item;
          });
      } else {
          fileList.value = [];
          return [];
      }
  },
  { deep: true, immediate: true }
);

// 上传前校检格式和大小
const handleBeforeUpload = (file: any) => {
  // 校检文件类型
  if (props.fileType.length) {
      loading.value = true;
      const fileName = file.name.split('.');
      const fileExt = fileName[fileName.length - 1];
      const isTypeOk = props.fileType.indexOf(fileExt) >= 0;
      if (!isTypeOk) {
          proxy?.$modal.msgError(`文件格式不正确, 请上传${props.fileType.join('/')}格式文件!`);
          loading.value = false;
          return false;
      }
  }
  // 校检文件大小
  if (props.fileSize) {
      const isLt = file.size / 1024 / 1024 < props.fileSize;
      if (!isLt) {
          loading.value = false;
          proxy?.$modal.msgError(`上传文件大小不能超过 ${props.fileSize} MB!`);
          return false;
      }
  }
  number.value++;
  return true;
};

// 文件个数超出
const handleExceed = () => {
  proxy?.$modal.msgError(`上传文件数量不能超过 ${props.limit} 个!`);
};

// 上传失败
const handleUploadError = () => {
  loading.value = false;
  proxy?.$modal.msgError('上传文件失败');
};

// 上传成功回调
const handleUploadSuccess = (res: any, file: UploadFile) => {
  loading.value = false;
  if (res.code === 200) {
      uploadList.value.push({
          name: res.data.fileName,
          url: res.data.url,
          ossId: res.data.ossId,
          fileSize: file?.raw.size,
          fileType: file?.raw.type
      });
      uploadedSuccessfully();
  } else {
      number.value--;
      proxy?.$modal.msgError(res.msg);
      fileUploadRef.value?.handleRemove(file);
      uploadedSuccessfully();
  }
};

// 上传结束处理
const uploadedSuccessfully = () => {
  if (number.value > 0 && uploadList.value.length === number.value) {
      fileList.value = fileList.value.filter((f) => f.url !== undefined).concat(uploadList.value);
      uploadList.value = [];
      number.value = 0;
      const valuef = fileList.value.map(({ name, url, fileType, fileSize, ossId }) => ({ fileName: name, url, fileSize, fileType, ossId }));
      if (props.format === 'id') {
         emit('change', listToString(valuef));
         emit('update:modelValue', listToString(valuef));
      } else if (props.isObject || props.format === 'object') {
          emit('change', valuef[0])
          emit('update:modelValue', valuef[0]);
      } else {
          emit('change', valuef)
          emit('update:modelValue', valuef);
      }
  }
};
const handleOnProgress = (event: any, file: any, list: any) => {
  const progress = Math.round((event.loaded / event.total) * 100);
  fileList.value = [...list];
};
// 删除文件
const handleDelete = (index: number) => {
  fileUploadRef.value?.abort(fileList.value[index]);
  fileList.value.splice(index, 1);
  const valuef = fileList.value.map(({ name, url, fileType, fileSize }) => ({ fileName: name, url, fileSize, fileType }));
  if (props.isObject) {
      emit('change', null)
      emit('update:modelValue', null);
  } else {
      emit('change', valuef)
      emit('update:modelValue', valuef);
  }
  loading.value = false;
};
// 获取文件名称
const getFileName = (name: string) => {
  // 如果是url那么取最后的名字 如果不是直接返回
  if (name.lastIndexOf('/') > -1) {
      return name.slice(name.lastIndexOf('/') + 1);
  } else {
      return name;
  }
};

// 对象转成指定字符串分隔
const listToString = (list: any[], separator?: string) => {
  let strs = '';
  separator = separator || ',';
  list.forEach((item) => {
      if (item.ossId) {
          strs += item.ossId + separator;
      }
  });
  return strs != '' ? strs.substring(0, strs.length - 1) : '';
};
</script>

<style scoped lang="scss">
.btn-file {
  width: 90px;
  height: 40px;
  line-height: 40px;
  border-radius: 8px;
  color: #666;
  text-align: center;
  background-color: #f7f7f7;
}
.upload-list-img {
  background-color: #f7f7f7;
  border-radius: 8px;

  &.mt10 {
      margin-top: 10px;
  }
}
.right-item {
  padding: 10px 16px;
  cursor: pointer;
  &:hover {
      color: var(--el-color-primary);
  }
}
.delete-item {
  width: 40px;
  cursor: pointer;
}
.upload-file-list.white {
  .btn-file {
      background-color: #fff;
  }
  .upload-list-img {
      background-color: #fff;
  }
}
.right-wrap {
  padding: 6px 10px;
  box-sizing: border-box;
}
.progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  background-color: var(--el-color-primary);
}
</style>