网站建设公司年终总结建网站的步骤

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-guangzhoubucket: 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

let newsFileList = ref(props.fileList);

就解释这么多吧，有什么疑问或不明白的地方可以留言，有什么更好的方案请大佬们赐教，写的不好请多多担待