多部分与Spring Boot Rest服务(Multipart with Spring Boot Rest Service)

 我有一个REST服务定义如下 
 
@RequestMapping(value = "/{userId}/profileimage/{language}", method = RequestMethod.PUT)
public String uploadProfileImage(@PathVariable String userId, @RequestParam MultipartFile file, @PathVariable String language) throws IOException { ...}
 
 并定义了一个多部分过滤器 
 
@Bean
public FilterRegistrationBean multipartFilter() {
    FilterRegistrationBean filterRegBean = new FilterRegistrationBean();
    filterRegBean.setFilter(new MultipartFilter());
    List<String> urlPatterns = new ArrayList<String>();
    urlPatterns.add("/*");
    filterRegBean.setUrlPatterns(urlPatterns);
    return filterRegBean;
}
 
 以及一个multipartConfigElement 
 
@Bean
public MultipartConfigElement multipartConfigElement(){
    MultipartConfigElement config = new MultipartConfigElement("");
    return config;
}
 
 但是，当我将多部分消息发送到REST服务时，我仍然遇到以下异常： 
 
 
 
 Servlet.service（）for servlet [dispatcherServlet]与path [/ dev]的上下文抛出异常[Request processing failed; 嵌套异常是java.lang.IllegalArgumentException：预期的MultipartHttpServletRequest：是否配置了MultipartResolver？] 
 
 
 该服务受到Spring安全保护（作为辅助信息），Spring Boot在启动时记录以下内容 
 
 
 
 添加现有的Filter初始化bean'multipartFilter'; order = 2147483647，resource = class path resource [com / fl / wir / config / MvcConfigurations.class] 
 
 
 映射过滤器：'multipartFilter'到网址：[/ *] 
 
 
 MultipartAutoConfiguration - 找到的@ConditionalOnClass类：javax.servlet.Servlet，org.springframework.web.multipart.support.StandardServletMultipartResolver，javax.servlet.MultipartConfigElement（OnClassCondition） - 匹配（OnPropertyCondition） 
 
 
 DispatcherServletAutoConfiguration.DispatcherServletConfiguration＃multipartResolver - @ConditionalOnMissingBean（names：multipartResolver; SearchStrategy：all）发现以下[multipartResolver]（OnBeanCondition） 
 
 
 知道为什么我仍然得到例外吗？ （使用Spring-Boot 1.2.3.RELEASE） 

I have a REST-Service defined with as follow
 
@RequestMapping(value = "/{userId}/profileimage/{language}", method = RequestMethod.PUT)
public String uploadProfileImage(@PathVariable String userId, @RequestParam MultipartFile file, @PathVariable String language) throws IOException { ...}
 
and defined a multipart filter
 
@Bean
public FilterRegistrationBean multipartFilter() {
    FilterRegistrationBean filterRegBean = new FilterRegistrationBean();
    filterRegBean.setFilter(new MultipartFilter());
    List<String> urlPatterns = new ArrayList<String>();
    urlPatterns.add("/*");
    filterRegBean.setUrlPatterns(urlPatterns);
    return filterRegBean;
}
 
as well as a multipartConfigElement
 
@Bean
public MultipartConfigElement multipartConfigElement(){
    MultipartConfigElement config = new MultipartConfigElement("");
    return config;
}
 
But I still get the following Exception when I send a multipart message to the REST service:
 
 
 
Servlet.service() for servlet [dispatcherServlet] in context with path [/dev] threw exception [Request processing failed; nested exception is java.lang.IllegalArgumentException: Expected MultipartHttpServletRequest: is a MultipartResolver configured?] 
 
 
The service is protected by spring security (as a side information) and Spring Boot logs the following on startup
 
 
 
Added existing Filter initializer bean 'multipartFilter'; order=2147483647, resource=class path resource [com/fl/wir/config/MvcConfigurations.class]
 
 
Mapping filter: 'multipartFilter' to urls: [/*]
 
 
MultipartAutoConfiguration - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.multipart.support.StandardServletMultipartResolver,javax.servlet.MultipartConfigElement (OnClassCondition) - matched (OnPropertyCondition)
 
 
DispatcherServletAutoConfiguration.DispatcherServletConfiguration#multipartResolver - @ConditionalOnMissingBean (names: multipartResolver; SearchStrategy: all) found the following [multipartResolver] (OnBeanCondition)
 
 
Any idea why I still get the exception? (using Spring-Boot 1.2.3.RELEASE)

原文：https://stackoverflow.com/questions/30594436