react上传java_Java - react+springboot上传文件和表单数据_java_酷徒编程知识库

在Spring Boot控制器中：@RequestMapping(value ="/addCustOrder", method = RequestMethod.POST, consumes = {"multipart/form-data"})

public String CustomerOrder(@ModelAttribute CustOrderRequest coReq, HttpServletRequest request) {

System.out.println("debug **************");

System.out.println("ReceiverName ::" + coReq.getReceiverName());

System.out.println("attachmentFile ::" + coReq.getFileAttachment().length);

}

模型包装器：public class CustOrderRequest {

private String receiverName;

private String receiverPhone;

private String itemDescription;

private MultipartFile[] fileAttachment;

}

//setter & getter

前端(React )代码：const payload = JSON.stringify({

id: values.id,

receiverName: values.receiverName,

receiverPhone: values.receiverPhone,

itemDescription: values.itemDescription,

fileAttachment: values.fileAttachment

});

axios.post(urlApi, payload)

.then(r => {

// success request

});

在上面的示例中，我总是遇到错误，

教程参考：SOMK

前端代码：let fd = new FormData();

fd.append("fileAttachment", values.fileAttachment);

fd.append("receiverName", values.receiverName);

axios.post(urlApi, fd)

.then(r => {

// success request

});

使用formdata更改了前端代码，然后在后端得到错误：2020-02-07T17:36:10.231+0700 WARN Resolved [org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 1 errors

Field error in object 'custOrderRequest' on field 'fileAttachment': rejected value [[object FileList]]; codes [typeMismatch.custOrderRequest.fileAttachment,typeMismatch.fileAttachment,typeMismatch.[Lorg.springframework.web.multipart.MultipartFile;,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [custOrderRequest.fileAttachment,fileAttachment]; arguments []; default message [fileAttachment]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.web.multipart.MultipartFile[]' for property 'fileAttachment'; nested exception is java.lang.IllegalStateException: Cannot convert value of type 'java.lang.String' to required type 'org.springframework.web.multipart.MultipartFile' for property 'fileAttachment[0]': no matching editors or conversion strategy found]]