antd upload上传图片在IE11中出现的问题 err_connection_reset

问题:upload一开始使用在谷歌和IE都可以,但是最近出现了以下问题,在IE11和谷歌都偶尔会出现访问不到action的链接问题;
1、在IE中,直接用 https://www.mocky.io/v2/5cc8019d300000980a055e76这是组件里的action链接时,会访问不到该接口:
在这里插入图片描述
2、后端没有给保存图片的接口,所以考虑将该action去掉;但是去掉之后会报:
在这里插入图片描述
3、后面查了以下API,发现是beforeUpload方法中有返回promise对象导致的错误:
在这里插入图片描述
4、解决方案:考虑将beforeUpload方法返回return:false;在上传方法onChange中获取originFileObj值,该值需要进行base64编码(项目需要)。
注意:info.file中没有获取到对应的status和originFileObj值,可以从info.fileList中获取。

好的,您可以按照以下步骤来实现antd upload上传图片: 1. 首先安装antd和axios。 ```bash npm install antd axios --save ``` 2. 在您的组件中引入antd upload组件。 ```javascript import { Upload, message } from 'antd'; import { LoadingOutlined, PlusOutlined } from '@ant-design/icons'; class UploadImage extends React.Component { state = { loading: false, imageUrl: '', }; handleChange = info => { if (info.file.status === 'uploading') { this.setState({ loading: true }); return; } if (info.file.status === 'done') { // Get this url from response in real world. getBase64(info.file.originFileObj, imageUrl => this.setState({ imageUrl, loading: false, }), ); } }; render() { const { loading, imageUrl } = this.state; const uploadButton = ( <div> {loading ? <LoadingOutlined /> : <PlusOutlined />} <div style={{ marginTop: 8 }}>Upload</div> </div> ); return ( <Upload name="avatar" listType="picture-card" className="avatar-uploader" showUploadList={false} action="https://www.mocky.io/v2/5cc8019d300000980a055e76" beforeUpload={beforeUpload} onChange={this.handleChange} > {imageUrl ? <img src={imageUrl} alt="avatar" style={{ width: '100%' }} /> : uploadButton} </Upload> ); } } ``` 3. 在handleChange方法中,您需要将上传图片转换为base64格式,以便于后续的保存和显示。 ```javascript import { Upload, message } from 'antd'; import { LoadingOutlined, PlusOutlined } from '@ant-design/icons'; function getBase64(file) { return new Promise((resolve, reject) => { const reader = new FileReader(); reader.readAsDataURL(file); reader.onload = () => resolve(reader.result); reader.onerror = error => reject(error); }); } class UploadImage extends React.Component { state = { loading: false, imageUrl: '', }; handleChange = info => { if (info.file.status === 'uploading') { this.setState({ loading: true }); return; } if (info.file.status === 'done') { // Get this url from response in real world. getBase64(info.file.originFileObj, imageUrl => this.setState({ imageUrl, loading: false, }), ); } }; render() { const { loading, imageUrl } = this.state; const uploadButton = ( <div> {loading ? <LoadingOutlined /> : <PlusOutlined />} <div style={{ marginTop: 8 }}>Upload</div> </div> ); return ( <Upload name="avatar" listType="picture-card" className="avatar-uploader" showUploadList={false} action="https://www.mocky.io/v2/5cc8019d300000980a055e76" beforeUpload={beforeUpload} onChange={this.handleChange} > {imageUrl ? <img src={imageUrl} alt="avatar" style={{ width: '100%' }} /> : uploadButton} </Upload> ); } } ``` 4. 最后,在handleSubmit方法中,您可以将base64格式的图片传给后端进行保存。 ```javascript import { Upload, message } from 'antd'; import { LoadingOutlined, PlusOutlined } from '@ant-design/icons'; import axios from 'axios'; function getBase64(file) { return new Promise((resolve, reject) => { const reader = new FileReader(); reader.readAsDataURL(file); reader.onload = () => resolve(reader.result); reader.onerror = error => reject(error); }); } class UploadImage extends React.Component { state = { loading: false, imageUrl: '', }; handleChange = info => { if (info.file.status === 'uploading') { this.setState({ loading: true }); return; } if (info.file.status === 'done') { // Get this url from response in real world. getBase64(info.file.originFileObj, imageUrl => this.setState({ imageUrl, loading: false, }), ); } }; handleSubmit = () => { axios.post('/api/upload', { image: this.state.imageUrl, }).then(response => { message.success('Image uploaded successfully!'); }).catch(error => { message.error('Failed to upload image!'); }); }; render() { const { loading, imageUrl } = this.state; const uploadButton = ( <div> {loading ? <LoadingOutlined /> : <PlusOutlined />} <div style={{ marginTop: 8 }}>Upload</div> </div> ); return ( <div> <Upload name="avatar" listType="picture-card" className="avatar-uploader" showUploadList={false} action="https://www.mocky.io/v2/5cc8019d300000980a055e76" beforeUpload={beforeUpload} onChange={this.handleChange} > {imageUrl ? <img src={imageUrl} alt="avatar" style={{ width: '100%' }} /> : uploadButton} </Upload> <Button type="primary" onClick={this.handleSubmit}>Submit</Button> </div> ); } } ``` 以上就是antd upload上传图片的实现步骤。
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值