java - Multipart、spring-boot 和 JBoss - 所需的请求部分 'file' 不存在

Question

我有一个使用spring-boot和嵌入式Tomcat进行开发的应用程序，在生产服务器上它部署在JBoss 6.4 EAP上。添加对 JBoss 的支持后，分段文件上传停止工作。在两个容器上，它都抛出 MissingServletRequestPartException。

将MultipartConfigElement添加到ServletRegistrationBean修复了tomcat上的这个问题，但对于JBoss它仍然不起作用。您知道问题出在哪里吗？

配置:

@Bean
public ServletRegistrationBean dispatcherRegistration(DispatcherServlet dispatcherServlet, MultipartConfigElement
        multipartConfig) {
    ServletRegistrationBean registration = new ServletRegistrationBean(dispatcherServlet);
    registration.getUrlMappings().clear();
    registration.addUrlMappings("/*");
    registration.setMultipartConfig(multipartConfig);
    return registration;
}

端点:

@RequestMapping(method = POST)
@ResponseBody
public SomeResponse uploadFileWithComment(
    @RequestParam(value = "file") final MultipartFile file,
    @RequestParam(value = "comment") String comment) {
    ...
}

web.xml

<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <listener>
        <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>RestServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>com.rebelek.Application</param-value>
        </init-param>
        <init-param>
            <param-name>contextClass</param-name>
            <param-value>
                org.springframework.web.context.support.AnnotationConfigWebApplicationContext
            </param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>RestServlet</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>
    <filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

Answer 1

此处讨论https://github.com/spring-projects/spring-boot/issues/2958建议如果您使用 @EnableAutoConfiguration 那么您需要执行以下操作，因为 springboot 自动配置会导致问题:

@EnableAutoConfiguration(exclude = {MultipartAutoConfiguration.class})

定义以下bean

@Bean(name = "multipartResolver") 
public CommonsMultipartResolver commonsMultipartResolver(){ 
CommonsMultipartResolver resolver = new CommonsMultipartResolver(); resolver.setMaxUploadSize(50*1024*1024); return resolver ; 
}


@Bean @Order(0) public MultipartFilter multipartFilter()
{ 
MultipartFilter multipartFilter = new MultipartFilter(); 
multipartFilter.setMultipartResolverBeanName("multipartResolver"); 
return multipartFilter; 
}