引言:
上传是将信息(网页、文字、图片、视频等)通过网页或者上传工具发布到远程服务器上的过程。如何使用Ant-design-vue中的 a-upload 上传组件进行图片或者视频的上传呢?
正文:
1.template中:
<a-form-model-item label="图片" prop="sheetPicture">
<div style="display: flex; align-items: center">
<a-upload name="avatar" class="avatar-uploader" action :customRequest="uploadImage" list-type="picture-card" :file-list="fileList" :show-file-list="false" :before-upload="beforeUpload" :remove="handleDeleteChange" accept=".jpg,.JPG,.jpeg,.JPEG,.png,.PNG,.gif,.GIF">
<div v-if="!defectSearchForm.sheetPicture">
<a-icon type="plus" />
<div class="ant-upload-text">上传</div>
</div>
<img v-else :src="defectSearchForm.sheetPicture" alt="avatar" />
</a-upload>
<a-tooltip placement="right">
<template slot="title">
<span>上传前请确认无误后再进行上传或删除操作</span>
</template>
<a-icon type="info-circle" />
</a-tooltip>
</div>
</a-form-model-item>
2.js中:
定义data:
data(){
return {
loading: false,
fileList: [],
defectSearchForm: {},
}
}
详情信息获取:
//根据id查询缺陷详情 (根据id获取详情的API getDefectSearchById)
getDefectSearchInfoById(id) {
let _this = this;
getDefectSearchById(id)
.then(({ data: res }) => {
if (res.code != 0) {
_this.$message.config({
maxCount: 1,
});
_this.$message.destroy();
return _this.$message.error(res.data);
}
console.log('缺陷详情', res);
if (JSON.stringify(res.data) != '{}') {
_this.defectSearchForm = res.data;
if (_this.defectSearchForm.sheetPicture) {
_this.fileList = [
{
uid: '-1',
name: 'image.png',
status: 'done',
url: _this.defectSearchForm.sheetPicture
}
];
} else {
_this.fileList = [];
}
}
})
.catch((error) => {
console.log(error);
return false;
});
},
图片上传部分:
//图片上传(上传图片API updateImage: '/sys/oss/upload')
uploadImage(file) {
let _this = this,
data = file.file,
fileParams = new FormData();
_this.loading = true;
fileParams.append('file', data);
console.log('fileParams', fileParams);
updateImage(fileParams).then(({ data: res }) => {
if (res.code != 0) {
_this.loading = false;
return _this.$message.error(res.msg);
}
_this.defectSearchForm.sheetPicture = 'http://' + res.data.src;
_this.loading = false;
});
},
beforeUpload(file) {
const isType = file.type === 'image/jpeg' || 'image/png' || 'image/jpg';
const isLt2M = file.size / 1024 / 1024 < 2;
if (!isType) {
this.$message.config({
maxCount: 1,
});
this.$message.destroy();
this.$message.error('图片格式错误,请上传图片!');
}
if (!isLt2M) {
this.$message.config({
maxCount: 1,
});
this.$message.destroy();
this.$message.error('上传头像图片大小不能超过 2MB!');
}
return isType && isLt2M;
},
// 删除项目图片(删除图片API deleteImage: '/sys/oss/delete')
handleDeleteChange(file) {
console.log('图片删除');
console.log('file',file);
let deletePlantInfoImgurl = file.url.substr(file.url.lastIndexOf('/') + 1);
deleteFile(deletePlantInfoImgurl).then((res) => {
if (res.code != 0) {
return this.$message.error(res.data || res.msg);
}
this.plantInfo.imgurl = '';
this.fileList = [];
this.$message.success('删除成功');
return;
});
},
3.效果:
如果你要实现大图预览的话:
previewVisible: false,
previewImage: '',
<a-upload name="avatar" class="avatar-uploader" action @preview="handlePreview" :showUploadList="false" :customRequest="uploadImage" list-type="picture-card" :file-list="fileList" :show-file-list="false" :before-upload="beforeUpload" :remove="handleDeletePlantImageChange" accept=".jpg,.JPG,.jpeg,.JPEG,.png,.PNG,.gif,.GIF">
<div v-if="!defectSearchForm.sheetPicture">
<a-icon type="plus" />
<div class="ant-upload-text">上传</div>
</div>
<img v-else :src="defectSearchForm.sheetPicture" class="avatar" />
</a-upload>
<!-- 此处添加预览,注意 :showUploadList="true" 预览才能使用 -->
<a-modal :visible="previewVisible" :footer="null" @cancel="handleCancel">
<img alt="example" style="width: 100%" :src="previewImage" />
</a-modal>
//预览图片
async handlePreview(file) {
console.log('file',file)
if (!file.url && !file.preview) {
file.preview = await getBase64(file.originFileObj);
}
this.previewImage = file.url || file.preview;
this.previewVisible = true;
},
//取消预览
handleCancel(){
this.previewVisible = false;
},
其中 :showUploadList="false" 是否展示 uploadList, 可设为一个对象,用于单独设定 showPreviewIcon 和 showRemoveIcon。此时预览和删除功能消失,如果想更换图片,直接点击即可!
总结:
当然,代码肯定不能完全拿来用,可以参考某一部分,这个上传的图片是保存到了第三方的存储平台拿的url,具体看你自己需求吧,希望能给你带来帮助!