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Reactjs 试图通过POST请求传递状态时,我的请求负载为空_Reactjs_Api_Post - Fatal编程技术网

Reactjs 试图通过POST请求传递状态时,我的请求负载为空

Reactjs 试图通过POST请求传递状态时,我的请求负载为空,reactjs,api,post,Reactjs,Api,Post,我正试图通过Post请求发送csv文件,而我的请求负载发送为空,我不确定为什么会发生这种情况这是我的组件: const IFImport = (props) => { const [file, setFile] = useState({}); const onUpload = (e) => { const csvFile = e.target.files; console.log(csvFile) setFile(

我正试图通过Post请求发送csv文件,而我的请求负载发送为空,我不确定为什么会发生这种情况这是我的组件:

const IFImport = (props) => {
    const [file, setFile] = useState({});
    



  const onUpload = (e) => {
    
    const csvFile = e.target.files;
      console.log(csvFile)
      setFile(...file, csvFile)
    
     
  }

  const handleSave = () => {
    event.preventDefault();
    console.log(file)
    
    props.onSave(api.CSVImport.upload(file))
  }

  const handleCancel = () => {
    props.onCancel();
  }


  return (
    <>
      <ContentRow>
        <h1>
          <Link to={"/"}>
            <Button color="link">&lt;</Button>
          </Link>
          Upload Enrollment Information
          <ErrorList error={props.errors} />
        </h1>
      </ContentRow>
      <hr/>
      <ContentRow>
      <Form onSubmit={(e) => handleSave(e)}>
      <Label>Upload a CSV File for Enrollment</Label>
          <FormGroup>
            <div>
    {file !== null ? <p>{file.name}</p> : ""}
            </div>
            <div>
              <Input
                type="file"
                name="data.file"
                onChange={e => onUpload(e)}
                accept=".csv"
              />
            </div>
          </FormGroup>
          <hr/>
          <ButtonToolbar>
            <SubmitButton inProgress={props.inProgress}>
              Save Enrollment
            </SubmitButton>
            <Button
              disabled={props.inProgress}
              color="link"
              onClick={() => handleCancel()}
            >
              Cancel
            </Button>
          </ButtonToolbar>
          </Form>
      </ContentRow>
    </>
  );
};

export default connect(mapStateToProps, mapDispatchToProps)(IFImport);
const IFImport=(道具)=>{
const[file,setFile]=useState({});
const onUpload=(e)=>{
const csvFile=e.target.files;
console.log(csvFile)
setFile(…文件,csvFile)
}
常量handleSave=()=>{
event.preventDefault();
console.log(文件)
onSave(api.CSVImport.upload(文件))
}
常量handleCancel=()=>{
props.onCancel();
}
返回(
上传报名信息

handleSave(e)}> 上载用于注册的CSV文件 {file!==null?{file.name}

:“” onUpload(东)} accept=“.csv” />
保存注册 handleCancel()} > 取消 ); }; 导出默认连接(MapStateTrops、mapDispatchToProps)(iImport);
当我在
handleSave
函数中控制台我的
文件时,我得到了文件对象,但仍然以这种方式发送它是不起作用的。我还尝试通过在我的handleSave函数中执行
props.onSave(api.CSVImport.upload({payload:file}))
将文件作为对象发送,但这也不起作用