一个Spring Servlet初始化程序，用于配置文件上传限制，每个文件5mb，每个请求10mb。

public class MyWebInitializer extendsAbstractAnnotationConfigDispatcherServletInitializer {private int maxUploadSizeInMb = 5 * 1024 * 1024; // 5 MB//...@Overrideprotected void customizeRegistration(ServletRegistration.Dynamic registration) {// upload temp file will put hereFile uploadDirectory = new File(System.getProperty("java.io.tmpdir"));// register a MultipartConfigElementMultipartConfigElement multipartConfigElement =new MultipartConfigElement(uploadDirectory.getAbsolutePath(),maxUploadSizeInMb, maxUploadSizeInMb * 2, maxUploadSizeInMb / 2);registration.setMultipartConfig(multipartConfigElement);