<!-- SpringMVC上传文件时，需要配置MultipartResolver处理器 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="UTF-8"/>
<!-- 指定所上传文件的总大小不能超过200KB。注意maxUploadSize属性的限制不是针对单个文件，而是所有文件的容量之和 -->
<property name="maxUploadSize" value="1024000"/>
<property name="fileItemFactory.sizeThreshold" value="0"></property>
</bean>
查看该类源码
有一段说明文档
* <p>Provides "maxUploadSize", "maxInMemorySize" and "defaultEncoding" settings as
* bean properties (inherited from {@link CommonsFileUploadSupport}). See corresponding
* ServletFileUpload / DiskFileItemFactory properties ("sizeMax", "sizeThreshold",
* "headerEncoding") for details in terms of defaults and accepted values.
进入 CommonsFileUploadSupport
public abstract class CommonsFileUploadSupport {
protected final Log logger = LogFactory.getLog(getClass());
private final DiskFileItemFactory fileItemFactory;
private final FileUpload fileUpload;
private boolean uploadTempDirSpecified = false;
进入
DiskFileItemFactory 类
看到
/**
* The threshold above which uploads will be stored on disk.
*/
private int sizeThreshold = DEFAULT_SIZE_THRESHOLD;//DEFAULT_SIZE_THRESHOLD=10240就是10k
设置下这个参数即可。