Spring文件上传 – 获得预期的MultipartHttpServletRequest：是否配置了MultipartResolver？ 错误

我正在尝试使用angular-file-upload在我的Angular Web应用程序中合并多个文件上传function。 目前，前端function有效，但每次上传尝试都会抛出一个

java.lang.IllegalStateException,java.io.IOException]: java.lang.IllegalArgumentException: Expected MultipartHttpServletRequest: is a MultipartResolver configured? 

例外。

上传控制器定义为

 @Controller @PropertySource("classpath:application.properties") public class FileUploadController { @Resource private Environment env; @RequestMapping(value = "/fileupload", method = RequestMethod.POST) @ResponseBody public List fileUpload(@RequestParam("file") MultipartFile[] uploadFiles) throws IllegalStateException, IOException { //file processing logic } } 

在我的AppConfig.java类中，我声明了bean

 @Bean public CommonsMultipartResolver commonsMultipartResolver(){ CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver(); commonsMultipartResolver.setDefaultEncoding("utf-8"); commonsMultipartResolver.setMaxUploadSize(50000000); return commonsMultipartResolver; } 

并启动Web应用程序

 @Override public void onStartup(ServletContext servletContext) throws ServletException { AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext(); ctx.register(AppConfig.class); servletContext.addListener(new ContextLoaderListener(ctx)); ctx.setServletContext(servletContext); ctx.refresh(); Dynamic servlet = servletContext.addServlet(SERVLET_NAME, new DispatcherServlet(ctx)); servlet.addMapping("/"); servlet.setLoadOnStartup(1); //servlet.setMultipartConfig(ctx.getBean(MultipartConfigElement.class)); } 

我不认为这是由于我的Angular视图中缺少

元素，因为我可以看到Content-Tyle是multipart/form-data并且Request Payload设置得恰当。

 Remote Address:192.168.33.10:80 Request URL:http://dev.jason.com/rest/fileupload Request Method:POST Status Code:500 Internal Server Error Request Headers Accept:*/* Accept-Encoding:gzip,deflate Accept-Language:en-US,en;q=0.8 Cache-Control:no-cache Connection:keep-alive Content-Length:415235 Content-Type:multipart/form-data; boundary=----WebKitFormBoundaryBHlsldPQysTVpvwZ Host:dev.jason.com Origin:http://dev.jason.com Pragma:no-cache Referer:http://dev.jason.com/ User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.122 Safari/537.36 Request Payload ------WebKitFormBoundaryBHlsldPQysTVpvwZ Content-Disposition: form-data; name="file"; filename="IMG_5072.jpg" Content-Type: image/jpeg ------WebKitFormBoundaryBHlsldPQysTVpvwZ-- 

请注意，包含时仍会出现此问题

 @Bean public MultipartConfigElement multipartConfigElement(){ MultipartConfigFactory multipartConfigFactory = new MultipartConfigFactory(); multipartConfigFactory.setMaxFileSize("10MB"); multipartConfigFactory.setMaxRequestSize("50MB"); return multipartConfigFactory.createMultipartConfig(); } 

在AppConfig.java取消注释该命令

 servlet.setMultipartConfig(ctx.getBean(MultipartConfigElement.class)); 

在我的servlet初始化类中。

任何帮助表示赞赏！

Answer 1

Spring的MVC堆栈要求将MultipartResolver bean称为multipartResolver 。 将@Bean方法更改为

 @Bean public CommonsMultipartResolver multipartResolver(){ 

要么

 @Bean(name = "multipartResolver") public CommonsMultipartResolver commonsMultipartResolver(){ 

Answer 2

只需将其添加到servler-context.xml即可

没有别的需要。

Answer 3

你必须在webmvc-context.xml中添加：