Question

我正在使用ant设计组件，并且有一个上传输入： https://ant.design/components/upload/

根据文档，需要对道具进行操作。

但是我不需要在上传文件时将其发布到url，我需要将整个FORM提交给其他端点（检查handlesubmit功能）

尝试遍历文档，我使用handlechange事件将文件添加到状态，但是STATUS从未完成，因此该行从未被命中。

我在这里想念什么？

import React, { Component } from 'react';
import { Input, Upload , Icon, message} from 'antd';
import Form from '../../components/uielements/form';
import Checkbox from '../../components/uielements/checkbox';
import Button from '../../components/uielements/button';
import Notification from '../../components/notification';
import { adalApiFetch } from '../../adalConfig';

const FormItem = Form.Item;

class RegisterTenantForm extends Component {
    constructor(props) {
        super(props);
        this.state = {TenantId: '', TenantUrl: '', CertificatePassword: '', confirmDirty: false, loading: false, buttondisabled: true};
        this.handleChangeTenantUrl = this.handleChangeTenantUrl.bind(this);
        this.handleChangeCertificatePassword = this.handleChangeCertificatePassword.bind(this);
        this.handleChangeTenantId= this.handleChangeTenantId.bind(this);
        this.handleSubmit = this.handleSubmit.bind(this);
        this.handleupload = this.handleupload.bind(this);
        this.handleTenantIdValidation = this.handleTenantIdValidation.bind(this);
        this.handleTenantAdminUrl = this.handleTenantAdminUrl.bind(this);

    };

    handleChangeTenantUrl(event){
        this.setState({TenantUrl: event.target.value});
    }

    handleChangeCertificatePassword(event){
        this.setState({CertificatePassword: event.target.value});
    }

    handleChangeTenantId(event){
        this.setState({TenantId: event.target.value});
    }

    beforeUpload(file) {
        const isJPG = file.type === 'image/jpeg';
        if (!isJPG) {
          message.error('You can only upload JPG file!');
        }
    }

    handleupload(info){
        //let files = e.target.files;
        if (info.file.status === 'uploading') {
            this.setState({ loading: true });
            return;
        }

        if (info.file.status === 'done') {
            this.setState({ loading: false });
            this.setState({ 'selectedFile': info.file });
        }

    }

    handleTenantIdValidation(rule, value, callback){
        const form = this.props.form;
        const str = form.getFieldValue('tenantid');

        var re = /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
        if (str && !str.match(re)) {
            this.setState({buttondisabled: true});
            callback('Tenant id is not correctly formated id');            
        } 
        else {
            this.setState({buttondisabled: false});
            callback();
        }
    }

    handleTenantAdminUrl(rule, value, callback){
        const form = this.props.form;
        const str = form.getFieldValue('tenantadminurl');

        var re = /^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$/i;
        if (str && !str.match(re)) {
            this.setState({buttondisabled: true});
            callback('Tenant Url is not correctly formated id');
        } 
        else {
            this.setState({buttondisabled: false});
            callback();
        }
    }


    handleSubmit(e){
        e.preventDefault();
        this.props.form.validateFieldsAndScroll((err, values) => {
            if (!err) {
                /*Notification(
                'success',
                'Received values of form',
                JSON.stringify(values)
                );*/

                let data = new FormData();
                //Append files to form data
                data.append("model", JSON.stringify({ "TenantId": this.state.TenantId, "TenantUrl": this.state.TenantUrl, "CertificatePassword": this.state.CertificatePassword }));
                //data.append("model", {"TenantId": this.state.TenantId, "TenantUrl": this.state.TenantUrl, "TenantPassword": this.state.TenantPassword });

                let files = this.state.selectedFile;
                for (let i = 0; i < files.length; i++) {
                  data.append("file", files[i], files[i].name);
                }

                const options = {
                  method: 'put',
                  body: data,
                  config: {
                    headers: {
                      'Content-Type': 'multipart/form-data'
                    }
                  }
                };

                adalApiFetch(fetch, "/Tenant", options)
                  .then(response => response.json())
                  .then(responseJson => {
                    if (!this.isCancelled) {
                      this.setState({ data: responseJson });
                    }
                  })
                  .catch(error => {
                    console.error(error);
                });
            }
        });      
    }



    render() {
        const { getFieldDecorator } = this.props.form;

        const formItemLayout = {
        labelCol: {
            xs: { span: 24 },
            sm: { span: 6 },
        },
        wrapperCol: {
            xs: { span: 24 },
            sm: { span: 14 },
        },
        };
        const tailFormItemLayout = {
        wrapperCol: {
            xs: {
            span: 24,
            offset: 0,
            },
            sm: {
            span: 14,
            offset: 6,
            },
        },
        };
        return (
            <Form onSubmit={this.handleSubmit}>
                <FormItem {...formItemLayout} label="Tenant Id" hasFeedback>
                {getFieldDecorator('tenantid', {
                    rules: [
                    {
                        required: true,
                        message: 'Please input your tenant id',
                    },
                    {
                        validator: this.handleTenantIdValidation
                    }],
                })(<Input name="tenantid" id="tenantid" onChange={this.handleChangeTenantId}/>)}
                </FormItem>
                <FormItem {...formItemLayout} label="Certificate Password" hasFeedback>
                {getFieldDecorator('certificatepassword', {
                    rules: [
                    {
                        required: true,
                        message: 'Please input your password!',
                    }
                    ],
                })(<Input type="password" name="certificatepassword" id="certificatepassword" onChange={this.handleChangeCertificatePassword}/>)}
                </FormItem>
                <FormItem {...formItemLayout} label="Tenant admin url" hasFeedback>
                {getFieldDecorator('tenantadminurl', {
                    rules: [
                    {
                        required: true,
                        message: 'Please input your tenant admin url!',
                    },
                    {
                        validator: this.handleTenantAdminUrl
                    }],
                })(<Input name="tenantadminurl" id="tenantadminurl"  onChange={this.handleChangeTenantUrl} />)}
                </FormItem>
                <FormItem {...formItemLayout} label="Certificate File">
                    <Upload  onChange={this.handleupload} beforeUpload={this.beforeUpload}>

                        <Button >
                            <Icon type="upload" /> Click to Upload
                        </Button>
                    </Upload>

                </FormItem>
                <FormItem {...tailFormItemLayout}>
                    <Button type="primary" htmlType="submit" disabled={this.state.buttondisabled}>
                        Register tenant
                    </Button>
                </FormItem>
            </Form>
        );
    }
}

const WrappedRegisterTenantForm = Form.create()(RegisterTenantForm);
export default WrappedRegisterTenantForm;

Answer 1

TL; DR

使用模拟的成功上载覆盖<Upload/>默认上载AJAX实现。

解决方案演示：

完整答案

由于您自己将文件附加到andt，因此您似乎试图将<Upload/>的{{1}}组件简单地用作文件选择器。从未达到formData的原因是因为该文件并未真正上传到任何地方。
因此，您不需要像OOB一样自动上传文件。
您只需要status === "done"将向您发送所选文件，然后将其保存在状态树中的某个位置即可。
onChange将另一个组件（rc-upload）渲染为其子组件，以处理实际的AJAX上传。您可以通过将customRequest道具传递给<Upload/>（将传递给<Upload/>组件）来覆盖此行为。

您可以看到here哪些选项已传递到请求函数。这是虚拟请求功能的实现：

rc-upload

然后您可以将其传递给const dummyRequest = ({ file, onSuccess }) => { setTimeout(() => { onSuccess("ok"); }, 0); };
<Upload customRequest={dummyRequest}/>仍将被触发，但是这次处于onChange状态，因为虚拟请求功能模拟了成功上传的流程。

Answer 2

除了@Quincy的答案，您还可以在类似这样的组件上使用速记，

Capacity = 76.2
EStored = m.SV(value=0,lb=0,ub=Capacity)
batteryeff = .95
batteff = m.if3((Enuc - Cons),1/batteryeff,batteryeff)

#Energy Balance 
Cost = m.Var()
eneed = m.sign2(Enuc-Cons)  #gives sign of energy need for energy storage or removal from storage
eswitch = m.if3(eneed,0, 1) #Turns eneed into a binary switch
switch = m.if3(eswitch*(Capacity-EStored)+(1-eswitch)*(EStored),0,1) #supposed to charge battery until at capacity and then discharge until EStored is 0. Then use thermal energy second


m.Equation(EStored.dt() == (switch)*batteff*(Enuc - Cons))  #Energy balance for Battery
m.Equation(T.dt() == (1-switch)*thermeff*(Enuc - Cons)/(mass*Cp)) #Energy balance for Thermal Storage
m.Equation(Cost == Enuc*1000 )
m.Obj(Cost)

m.options.IMODE = 5
m.options.SOLVER = 3
m.solve()

Answer 3

根据官方文档Upload manually：

在beforeUpload返回false之后，手动上传文件。

beforeUpload(file) {
    const isJPG = file.type === 'image/jpeg';
    if (!isJPG) {
      message.error('You can only upload JPG file!');
    }
    return false;
}

Answer 4

蚂蚁： 使用beforeUpload上传唯一的jpeg或png文件的简单解决方案

<Upload
    fileList = {this.state.selectedLogo}
    customRequest = {customRequest}
    onChange = {this.onChangeLogo}
    showUploadList = {false}
    beforeUpload = {(file) => {
    const isJPG = file.type === 'image/jpeg' || file.type === 'image/png';
        if (!isJPG) {
            message.error('You can only upload JPG or PNG file!');
            return false;
        } else {
            return true;
        }
    }}
>

antd上传控件需要动作功能，但我不需要

4 个答案:

TL; DR

完整答案