嘿，又控猪一个

1、手动上传（适用于导入）

import React from "react";
import ReactDOM from "react-dom";
import "antd/dist/antd.css";
import "./index.css";
import { Upload, Button, Icon, message } from "antd";
// import reqwest from 'reqwest';
import { extend } from "umi-request";

const request = extend({
  maxCache: 10, // The maximum number of caches. When it is exceeded, it will automatically clear the first one according to the time.
  errorHandler: error => {
    // Centralized processing error
  }
});
class Demo extends React.Component {
  state = {
    fileList: [],
    uploading: false,
    res: null
  };

  handleUpload = async () => {
    const { fileList } = this.state;
    const formData = new FormData();
    fileList.forEach(file => {
      formData.append("files[]", file);
    });

    this.setState({
      uploading: true
    });

    const res = await request(
      "https://www.mocky.io/v2/5cc8019d300000980a055e76",
      {
        method: "post",
        data: formData
      }
    );
    console.log(res);
    this.setState({
      fileList: [],
      uploading: false,
      res: JSON.stringify(res, null, 4)
    });
    // 假设一定会成功，so,不成功就不处理了
    message.success("upload successfully.");
    // You can use any AJAX library you like
    // reqwest({
    //   url: 'https://www.mocky.io/v2/5cc8019d300000980a055e76',
    //   method: 'post',
    //   processData: false,
    //   data: formData,
    //   success: () => {
    //     this.setState({
    //       fileList: [],
    //       uploading: false,
    //     });
    //     message.success('upload successfully.');
    //   },
    //   error: () => {
    //     this.setState({
    //       uploading: false,
    //     });
    //     message.error('upload failed.');
    //   },
    // });
  };

  render() {
    const { uploading, fileList, res } = this.state;
    const props = {
      onRemove: file => {
        this.setState(state => {
          const index = state.fileList.indexOf(file);
          const newFileList = state.fileList.slice();
          newFileList.splice(index, 1);
          return {
            fileList: newFileList
          };
        });
      },
      beforeUpload: file => {
        this.setState(state => ({
          fileList: [...state.fileList, file]
        }));
        return false;
      },
      fileList
    };

    return (
      

        
          
             Select File
          
        
        
          {uploading ? "Uploading" : "Start Upload"}
        
        
结果
        
{res}
      
    );
  }
}

ReactDOM.render(, document.getElementById("container"));

2、手动上传-并转化格式，这种作用不大，一般直接上传就可以了（见3）

// 字符串转化成数组
export function imgeUrlStr2Array(imageUrl) {
  if (imageUrl === '' || imageUrl === null || imageUrl === undefined) {
    return [];
  }
  const imageList = imageUrl.split(',');
  const newImageList = imageList.map((item, index) => {
    return {
      url: item,
      status: 'done',
      thumbUrl: item,
      uid: -index,
    };
  });
  return newImageList;
}

import { imgeUrlStr2Array, previewImageFun, } from '@/utils/utils';
import {Col,Row, Form Upload, message} from 'antd';
import {FormComponentProps} from 'antd/lib/form/Form';
import {connect} from 'dva';
import * as React from 'react';

const FormItem = Form.Item;
const {TextArea} = Input;
const {Option} = Select;

interface Props {
  visible?: boolean;
  baseInfo?: any;
  onCancel?: () => void;
  onOk?: (value:any) => void;
  dispatch?: any;
  user?: any;
  qualificationQuery?: any;
}
@connect(state => ({
  user: state.user,
}))
class QueryOtherForm extends React.PureComponent {
  state = {
    fileList: this.props.baseInfo.imageList ? [...this.props.baseInfo.imageList] : [],
  };

  componentDidMount() {
    this.getList();
  }

  handleOk = async () => {
    const headPortrait = await this.handleUpload2()
    const {form,onOk} =this.props
    form.validateFields((errors, values) => {
      if (errors) {
        return;
      }
      // const headPortrait = values.headPortrait.map(item => {
      //   if (item.response) {
      //     // 是新上传
      //     return (item.response.data && item.response.data.imageUrl) || '';
      //   }
      //     // 非新上传
      //     return item.url;
      //
      // });
      const params = {
        ...values,
        workBeginsCreate: values.workBeginsCreate ?
          `${moment(values.workBeginsCreate).format(dateFormat)  } 00:00:00` : '',
        headPortrait,
        // headPortrait: headPortrait.join(','),
      };
      onOk(params);
    })
  };
  handleUpload2 = async () => {
    const { fileList } = this.state;
    const formData = new FormData();
    fileList.forEach(file => {
      formData.append('files', file);
    });

    this.setState({
      uploading: true,
    });
    const { dispatch } = this.props;
    const res = await dispatch({
      type: 'user/upload',
      payload: formData,
    });
    const url =res.data.imageUrl
    console.log(url)
    await this.setState({
      uploading: false,
      fileList:imgeUrlStr2Array(url)
    });
    console.log('this.fileList',this.state.fileList)
    message.success('upload successfully.');
return url
  };

  // 预览
  handlePreview = file => {
    // this.setState({
    //   previewImage: file.url || file.thumbUrl,
    //   previewVisible: true,
    // });
    previewImageFun(file);
  };


  render() {
    const {fileList} = this.state;
    const formItemLayout = {
      labelCol: {
        xs: {span: 24},
        sm: {span: 6}
      },
      wrapperCol: {
        xs: {span: 24},
        sm: {span: 18}
      }
    };
    const props = {
      onRemove: file => {
        this.setState(state => {
          const index = state.fileList.indexOf(file);
          const newFileList = state.fileList.slice();
          newFileList.splice(index, 1);
          return {
            fileList: newFileList,
          };
        });
      },
      beforeUpload: file => {
        this.setState(state => ({
          fileList: [...state.fileList, file],
        }));
        return false;
      },
      fileList,
    };
    const uploadButton = (
      

        
        
上传头像
      
    );

    return (
     
        

          
            
              
                {fileList.length >= 1 ? null : uploadButton}
              
            
          
        
    
    );
  }
}

3、直接上传，立即返回结果

export const UPLOAD_URL = `${getServerPath()}/server/web/upload/register`;

  normFile = e => {
    if (Array.isArray(e)) {
      return e;
    }
    this.setState({ fileList: e.fileList });
    return e && e.fileList;
  };

 
    {getFieldDecorator('headPortrait', {
        valuePropName: 'headPortrait',
        getValueFromEvent: this.normFile,
        initialValue: fileList,
      })(
        
          {fileList.length >= 1 ? null : uploadButton}
        
      )}