关于java：多部分表单请求抛出：必需的MultipartFile参数’image’不存在

Multipart form request throws: Required MultipartFile parameter 'image' is not present

我尝试使用邮递员将图像上载到服务器。我使用Spring使其余的API如下所示：

PostMan mutlipart request 。

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@RequestMapping(value ="/uploadPrescription", method =RequestMethod.POST)
public ResponseEntity<ResponseSuccessData> uploadPatientPrescription(
@RequestBody @RequestParam("image") MultipartFile image)
throws IOException {

但它抛出了一个错误：

1 2	org.springframework.web.bind.MissingServletRequestParameterException: Required MultipartFile parameter 'image' is not present

号

正如您在邮差中看到的，密钥名是"image"，而在RESTAPI中，密钥名也是@requestparam("image")。

在content-type-content-type=multipart/form数据中设置值，bounds=--abc'

这是我的multipart的Spring配置-

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@Bean
public CommonsMultipartResolver multipartResolver() {

CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver();
//commonsMultipartResolver.setMaxUploadSize(-1);
return commonsMultipartResolver;

}

有什么问题？

相关讨论

请删除标题部分

氧化镁

请删除邮差标题部分的-content-type:multipart/form-data；boundary='abc'设置

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@RestController
public class UserOfferController {

// upload image
@RequestMapping(value ="/uploadimage", method = RequestMethod.POST)
public ResponseEntity<ResponseObjectBean> uploadFile(@RequestParam("uploadedFile") MultipartFile file) {
int statusCode;
String msg;
Object data = null;
long maxsize = configuredValue.getFileMaxAcceptedSize();

if (!file.isEmpty()) {

String name = file.getOriginalFilename();

String imagePath ="path to save your image";

try {
byte[] bytes = file.getBytes();
BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(new File(imagePath)));
stream.write(bytes);
statusCode = 200;
msg ="DONE";
data = true;

} catch (Exception e) {
e.printStackTrace();
statusCode = 500;
msg ="FAIL";
data = false;

}

} else {
statusCode = 500;
msg ="FAIL";
data = false;
}
responseData.setStatusCode(statusCode);
responseData.setStatusMsg(msg);
responseData.setData(data);
return new ResponseEntity<ResponseObjectBean>(responseData, HttpStatus.OK);
}

}

在spring.xml中添加这些行

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<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

<property name="maxUploadSize" value="1024" />

<property name="maxInMemorySize" value="2048" />
</bean>

号

enter image description here 。

相关讨论

除了Abhijit Chowdhury的答案外，如果您仍在使用Spring Security，那么您可以删除Content-Type，并将令牌保留在头中，不需要从头中删除所有内容。

此外，重新启动邮递员也很重要。

1.删除邮差中的标题部分。

2.在您的API中：

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添加以下内容：

1	consumes = MediaType.MULTIPART_FORM_DATA_VALUE

。

所以它变成：

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@RequestMapping(value ="/uploadPrescription", method =RequestMethod.POST, consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public ResponseEntity<ResponseSuccessData> uploadPatientPrescription(
@RequestBody @RequestParam("image") MultipartFile image)
throws IOException {}

将@RequestBody @RequestParam("image")改为@RequestBody("image")。第一条语句无效，请参见-spring uploading files。