antd upload上传组件如何获取服务端返回数据

const Dragger = Upload.Dragger;
constructor(props) {
        super(props);
        this.state = {
            fileList: [],
        };
    }
<Dragger
                        listType={"picture"}
                        action={uploadUrl}
                        accept={acceptPictype}
                        disabled={upLoadDisabled}
                        beforeUpload={() => {
                        }}
                        fileList={isScanSuccess?[]:this.state.fileList}
                        onChange={
                            (data) => {
                                console.log(data)
                                const { fileList, file } = data;
                             		//自己的逻辑
                                    this.setState({ fileList: [...fileList] });//这段代码放在处理逻辑的最后面  
                                }                           
                            }
                        }
                    >
在github[解答](https://github.com/ant-design/ant-design/issues/2423)上此问题解答：

对于受控模式，你应该在 onChange 中始终 setState fileList，保证所有状态同步到 Upload 内。类似这里的写法：http://ant.design/components/upload/#components-upload-demo-fileList

// good  正确写法

onFileChange(fileList) {
  if ( ... ) {
    ...
  } else {
    ...
  }
  // always setState
  this.setState({ fileList: [...fileList] });
}
<Upload fileList={this.state.fileList} onChange={this.onFileChange} />
// bad 写法
onFileChange(fileList) {
  if ( ... ) {
    this.setState({ fileList: [...fileList] });
  } else {
    ...
  }
}
<Upload fileList={this.state.fileList} onChange={this.onFileChange} />
建议研习受控组件概念：https://facebook.github.io/react/docs/forms.html#controlled-components
注意需要克隆 fileList 以保障 Upload 能感知数组变化。
- this.setState({ fileList });
+ this.setState({ fileList: [...fileList] });