異常信息：
嚴重: Servlet.service() for servlet [suibian] in context with path [/SpringMvcDemo3] threw exception [Request processing failed; nested exception is org.springframework.web.multipart.MaxUploadSizeExceededException: Maximum upload size of 10 bytes exceeded; nested exception is org.apache.commons.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (9923) exceeds the configured maximum (10)] with root cause
org.apache.commons.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (9923) exceeds the configured maximum (10)
at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:797)
at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:323)
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:341)
at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:158)
解決辦法：
1 <!-- SpringMVC上傳文件時，需要配置MultipartResolver處理器 --> 2 <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> 3 <property name="defaultEncoding" value="UTF-8"/> 4 5 <!-- 指定所上傳文件的總大小不能超過200KB。注意maxUploadSize屬性的限制不是針對單個文件，而是所有文件的容量之和 --> 6 <property name="maxUploadSize" value="2000"/> 7 8 <!--resolveLazily屬性啟用是為了推遲文件解析，以便在UploadController 中捕獲文件大小異常--> 9 <property name="resolveLazily" value="true"/> 10 </bean>
