在vue3中根据element Plus封装一个图片上传组件

继上次文件上传之后，可能又遇到多个图片上传，图片如下

组件使用方法如下

话不多说，直接上组件，上面的划入删除是手写的，组件里面只有多图片上传的，索性就自己写了个划入显示点击删除的

下面是代码

<template>
  <el-upload class="avatar-uploader" :show-remove="true" action="" :on-remove="handleRemove" :show-file-list="false"
    :http-request="handleSuccess">
    <div v-show="imageUrl" class="deleteBox"></div>
    <el-icon v-show="imageUrl" class="delete" @click.stop="handleDelete">
      <Delete />
    </el-icon>
    <img v-if="imageUrl" :src="downloadUrl + imageUrl" class="avatar" />
    <el-icon v-else class="avatar-uploader-icon">
      <Plus />
    </el-icon>
  </el-upload>
</template>

<script lang="ts" setup>
import { defineProps, defineEmits, ref, watch } from 'vue'
import type { UploadProps, UploadUserFile } from 'element-plus'
import { ElMessage } from 'element-plus'
import { uploadAction } from '@/utils/request'
const props = defineProps({
  modelValue: {
    type: String,
    default: ''
  }
});
const emit = defineEmits(['update:modelValue'])
const downloadUrl = ref('')//回显地址

const imageUrl = ref('')
// 子组件的方法
function clickSon(val: any) {
  emit('update:modelValue', val);
}
// 监听 modelValue 的变化
watch(() => props.modelValue, (newVal,) => {
  // 可以在这里做一些响应 modelValue 变化的逻辑  
  //监听父组件传值变化修改list
  if (newVal) {
    imageUrl.value = newVal
  } else {
    imageUrl.value = ''
  }
}, { immediate: true });

const handleSuccess = (uploadFile: any, uploadFiles: any) => {
  console.log(uploadFile, uploadFiles, '上传');
  if (uploadFile) {
    const file = uploadFile.file;
    const imageMimeTypes = ['image/jpeg', 'image/png', 'image/gif', 'image/bmp', 'image/webp']; // 常见的图片 MIME 类型  

    // 检查文件的 MIME 类型是否是图片类型  
    if (!imageMimeTypes.includes(file.type)) {
      ElMessage.error('请选择图片')
      return; // 如果不是图片，则直接返回，不执行上传操作  
    }
    let fd = new FormData();
    fd.append('files', uploadFile.file);
    console.log(fd, 'fd');
    //上传文件
    uploadAction('/api/gpsservice/v1/attachment/multiUpload', fd).then((res: any) => {
      if (res) {
        console.log(res[0], 'res');
        // fileList.value[0].name = res[0].name
        // fileList.value[0].url = downloadUrl.value + res[0].attachmentPath
        //上传成功后向父组件传值
        // imageUrl.value=res[0].attachmentPath
        clickSon(res[0].attachmentPath)

      }
    })
  }
}
const handleRemove: UploadProps['onRemove'] = (uploadFile, uploadFiles) => {
  console.log(uploadFile, uploadFiles)
}
const handleDelete=()=>{
  console.log('删除');
  clickSon('') 
}
</script>

<style lang="less" scoped>
.avatar-uploader .avatar {
  width: 178px;
  height: 178px;
  display: block;
}

.avatar {
  position: relative;
}

.delete {
  position: absolute;
  left: 48%;
  top: 48%;
  // z-index: 999;

}

.deleteBox {
  width: 178px;
  height: 178px;
  z-index: 998;
  position: absolute;
  left: 0;
  top: 0;
}

.avatar-uploader:hover {
  .delete {
    z-index: 999;
  }

  .deleteBox {
    width: 100%;
    height: 100%;
    z-index: 999;
    background-color: #0000001f;

  }
}
</style>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed var(--el-border-color);
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  text-align: center;
}
</style>