HttpMediaTypeNotSupportedException: 内容类型 'application/form-data' 不受支持 spring-boot

Question

在 Jhipster 上配置这些文件 application.yml、application-dev.yml、application-prod.yml 后：

spring:
    application:
        name: xxx
    http:
        multipart:
            enabled: true
            max-file-size: 200MB
            file-size-threshold: 2MB
            max-request-size: 215MB

我收到错误：

        at org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping.handleNoMatch(RequestMappingInfoHandlerMapping.java:221)
        at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lookupHandlerMethod(AbstractHandlerMethodMapping.java:374)
        at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:314)
        at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:61)
        at org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:352)
        at org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1160)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:940)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
        at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)

这是我的控制器的一个例子：

    package com.xxx.xxx.web.rest;
    
    import com.xxx.xxx.service.FileUploadDownloadService;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.core.io.Resource;
    import org.springframework.http.HttpHeaders;
    import org.springframework.http.MediaType;
    import org.springframework.http.ResponseEntity;
    import org.springframework.web.bind.annotation.*;
    import org.springframework.web.multipart.MultipartFile;
    
    import javax.servlet.http.HttpServletRequest;
    import java.io.IOException;
    import java.net.MalformedURLException;
    
    @RestController
    @RequestMapping("/api")
    public class FileUploadDownloadController {
    
        private static final Logger logger = LoggerFactory.getLogger(FileUploadDownloadController.class);
    
        private final FileUploadDownloadService service;
    
        public FileUploadDownloadController(FileUploadDownloadService fileUploadDownloadService) {
            this.service = fileUploadDownloadService;
        }
    
        @PostMapping(value = "/file/uploadFile", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
        public UploadFileResponse uploadFile(
            @RequestParam("filename") String name,
            @RequestParam("file") MultipartFile file) {
            String fileName = service.uploadFile(file);
    
            return new UploadFileResponse(fileName);
        }
    }

这是我要上传的 Angular 服务：

    import {Injectable} from '@angular/core';
    import {Observable} from 'rxjs/Rx';
    import {Headers, Http, RequestOptions} from '@angular/http';
    
    @Injectable()
    export class FileService {
    
        private resourceUrl = 'api/file';
    
        constructor(private http: Http) {
        }
    
        uploadSingleFile(file: File): Observable<any> {
            const formData: FormData = new FormData();
            formData.append('file', file);
    
            const headers = new Headers();
            headers.append('Content-Type', 'application/form-data');
    
            const options = new RequestOptions({ headers });
    
            console.log(formData);
            return this.http.post(`${this.resourceUrl}/uploadFile`, formData, options );
        }
    }

我的spring-boot版本是1.5.4.RELEASE, Java 版本 1.8.0_275, 节点版本 10.17， JHipster 版本 4.6.0

我读了很多帖子，所有帖子都说了与我所做的相同的配置（启用了多部分支持），有没有我被误解或遗忘的地方？

感谢您的支持。

Answer 1

阅读一些 post 后，我发现没有必要指明内容类型如果您尝试发送 multipart/form-data，而我尝试发送的内容类型不正确，因为不不存在，所以我删除了那一行：

~~headers.append('Content-Type', 'application/form-data');~~

所以，就是这样。我希望这可以帮助某人。

此致。

HttpMediaTypeNotSupportedException: 内容类型 'application/form-data' 不受支持 spring-boot

HttpMediaTypeNotSupportedException: Content type 'application/form-data' not supported spring-boot

file-upload

spring-boot

jhipster

angular