Spring CommonsMultipartResolver 上传文件

...Controller...{

// 创建一个通用的多部分解析器
CommonsMultipartResolver commonsMultipartResolver =
new CommonsMultipartResolver(request.getSession().getServletContext());
// 设置编码
commonsMultipartResolver.setDefaultEncoding("utf-8");
// 判断 request 是否有文件上传,即多部分请求...
if (commonsMultipartResolver.isMultipart(request))
{
// 转换成多部分request
MultipartHttpServletRequest multipartRequest = commonsMultipartResolver.resolveMultipart(request);

// file 是指 文件上传标签的 name=值
// 根据 name 获取上传的文件...
MultipartFile file = multipartRequest.getFile("file");

// 上传后记录的文件...
File imageFile = new File("fileName");
// 上传...
file.transferTo(imageFile);

// to do
}
}

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="UTF-8" />
</bean>

<form id="fileUploadForm" method="post" action="XXX.do?method=fileUpload" enctype="multipart/form-data">
<tr>
<td>File:</td>
<td><input type="file" name="file"></td>
</tr>
<tr>
<td><input type="hidden" name="fileOwner" value="1002"/></td>
<td><input type="submit" value="submit"></td>
</tr>
</form>