MultipartException：当前请求不是多部分请求 [英] MultipartException: Current request is not a multipart request

问题描述

我正在尝试制作一个安静的控制器来上传文件。我见过

但是服务器崩溃了错误：

  .MultipartException：当前请求不是多部分请求
  

我再次发现这个，并添加了 bean.xml 文件

 <？xml version =1.0encoding =UTF-8？> 
< beans xmlns =http://www.springframework.org/schema/beans
 xmlns：xsi =http://www.w3.org/2001/XMLSchema-instance
 xsi：schemaLocation =http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd\"> 
 
< bean id =multipartResolver
 class =org.springframework.web.multipart.commons.CommonsMultipartResolver> 
< / bean> 
< / beans> 
  

不幸的是，仍然会抱怨同样的错误。

解决方案

当您使用Postman进行多部分请求时，请不要在Header中指定自定义Content-Type。所以Postman中的Header选项卡应为空。邮差将确定表格数据边界。在Postman的Body选项卡中，您应该选择form-data并选择文件类型。您可以在 https://github.com/postmanlabs/postman-app上找到相关讨论。 -support / issues / 576

I am trying to make a restful controller to upload files. I have seen this and made this controller:

@RestController
public class MaterialController {

    @RequestMapping(value="/upload", method= RequestMethod.POST)
    public String handleFileUpload(
            @RequestParam("file") MultipartFile file){
        String name = "test11";
        if (!file.isEmpty()) {
            try {
                byte[] bytes = file.getBytes();
                BufferedOutputStream stream =
                        new BufferedOutputStream(new FileOutputStream(new File(name + "-uploaded")));
                stream.write(bytes);
                stream.close();
                return "You successfully uploaded " + name + " into " + name + "-uploaded !";
            } catch (Exception e) {
                return "You failed to upload " + name + " => " + e.getMessage();
            }
        } else {
            return "You failed to upload " + name + " because the file was empty.";
        }
    }
}

and then i used postman to send a pdf:

But the server crashes with the error:

.MultipartException: Current request is not a multipart request

Again i have found this, and added a bean.xml file

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

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

Unfortunately, it still complains with the same error.

解决方案

When you are using Postman for multipart request then don't specify a custom Content-Type in Header. So your Header tab in Postman should be empty. Postman will determine form-data boundary. In Body tab of Postman you should select form-data and select file type. You can find related discussion at https://github.com/postmanlabs/postman-app-support/issues/576

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