求解关于fegin传输MultipartFile报错org.apache.tomcat.util.http.fileupload.FileUploadException: the request was rejected because no multipart boundary was found

Question

问题描述

之前在服务端（接收方），接收的MultipartFile数据总是为null，然后忘记改了哪，变成了下面报错。找了好久，未解决，求助啊啊啊啊

报错 org.apache.tomcat.util.http.fileupload.FileUploadException: the request was rejected because no multipart boundary was found

2020-10-12 20:58:33.714 ERROR 15852 --- [nio-8882-exec-5] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; nested exception is java.io.IOException: org.apache.tomcat.util.http.fileupload.FileUploadException: the request was rejected because no multipart boundary was found] with root cause

org.apache.tomcat.util.http.fileupload.FileUploadException: the request was rejected because no multipart boundary was found
    at org.apache.tomcat.util.http.fileupload.impl.FileItemIteratorImpl.init(FileItemIteratorImpl.java:174) ~[tomcat-embed-core-9.0.38.jar:9.0.38]
    at org.apache.tomcat.util.http.fileupload.impl.FileItemIteratorImpl.getMultiPartStream(FileItemIteratorImpl.java:190) ~[tomcat-embed-core-9.0.38.jar:9.0.38]
    at org.apache.tomcat.util.http.fileupload.impl.FileItemIteratorImpl.findNextItem(FileItemIteratorImpl.java:209) ~[tomcat-embed-core-9.0.38.jar:9.0.38]
    at org.apache.tomcat.util.http.fileupload.impl.FileItemIteratorImpl.<init>(FileItemIteratorImpl.java:127) ~[tomcat-embed-core-9.0.38.jar:9.0.38]
    at org.apache.tomcat.util.http.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:256) ~[tomcat-embed-core-9.0.38.jar:9.0.38]
    at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:280) ~[tomcat-embed-core-9.0.38.jar:9.0.38]
    at org.apache.catalina.connector.Request.parseParts(Request.java:2869) ~[tomcat-embed-core-9.0.38.jar:9.0.38]

依赖

试过将版本3.0.3换成3.8.0，干脆在调用的时候400，调用失败。。。

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<dependency>
            <groupId>io.github.openfeign.form</groupId>
            <artifactId>feign-form</artifactId>
            <version>3.0.3</version>
</dependency>
<dependency>
            <groupId>io.github.openfeign.form</groupId>
            <artifactId>feign-form-spring</artifactId>
            <version>3.0.3</version>
</dependency>

配置文件加了文件大小控制

spring:
  servlet:
    multipart:
      max-file-size: 10MB
      max-request-size: 100MB

FeignClient

@FeignClient(value = "ossservice", configuration = MultipartSupportConfig.class)
public interface OSSServiceFegin {
    @RequestMapping(value = "/osservice/upload", method = RequestMethod.POST, consumes = MediaType.MULTIPART_FORM_DATA_VALUE, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
    R upload(@RequestPart MultipartFile file);
}

class MultipartSupportConfig {

    @Autowired
    private ObjectFactory<HttpMessageConverters> messageConverters;

    @Bean
    @Primary
    @Scope("prototype")
    public Encoder feignFormEncoder() {
        return new SpringFormEncoder(new SpringEncoder(messageConverters));
    }

    @Bean
    public feign.Logger.Level multipartLoggerLevel() {
        return feign.Logger.Level.FULL;
    }

}

服务端（接收方）

@RestController
@RequestMapping("/osservice")
public class OssController {
    @Autowired
    private OssService seOss;

    @PostMapping(value = "/upload",produces = MediaType.APPLICATION_JSON_UTF8_VALUE, consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    R upload(@RequestPart("file") MultipartFile file) {
        String path = seOss.upload(file);
        return R.ok().data("path", path);
    }
}

Answer 1

https://blog.csdn.net/evasnowind/article/details/100727745