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功能。目前,前端功能正常,但每次上载尝试都会抛出一个
java.lang.IllegalStateException,java.io.IOException]:
java.lang.IllegalArgumentException: Expected MultipartHttpServletRequest:
is a MultipartResolver configured?
异常(exception)。
上载 Controller 定义为
@Controller
@PropertySource("classpath:application.properties")
public class FileUploadController {
@Resource
private Environment env;
@RequestMapping(value = "/fileupload", method = RequestMethod.POST)
@ResponseBody
public List<String> 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;
}
并使用以下命令启动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 View 中缺少
<form>
元素造成的,因为我可以看到Content-Tyle
是multipart/form-data
并已正确设置了请求有效负载。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,当包含
@Bean
public MultipartConfigElement multipartConfigElement(){
MultipartConfigFactory multipartConfigFactory = new MultipartConfigFactory();
multipartConfigFactory.setMaxFileSize("10MB");
multipartConfigFactory.setMaxRequestSize("50MB");
return multipartConfigFactory.createMultipartConfig();
}
在
AppConfig.java
中并取消注释该命令servlet.setMultipartConfig(ctx.getBean(MultipartConfigElement.class));
在我的servlet初始化程序类中。
任何帮助表示赞赏!
最佳答案
Spring的MVC堆栈要求将MultipartResolver
bean称为multipartResolver
。将您的@Bean
方法更改为
@Bean
public CommonsMultipartResolver multipartResolver(){
要么
@Bean(name = "multipartResolver")
public CommonsMultipartResolver commonsMultipartResolver(){