jsp页面
<form action="${pageContext.request.contextPath }/user/upload" method="post" enctype="multipart/form-data">
attach 1:<input type="file" name="attachs" /><br/>
attach 2:<input type="file" name="attachs"/><br/>
<button type="submit">提交</button>
</form>
controller.java 接收数据（代码如下）
@RequestMapping(value="/upload",method=RequestMethod.POST ) public String upload(@RequestParam("attachs") MultipartFile[] attachs,HttpServletRequest req){ String realPath=req.getSession().getServletContext().getRealPath("/resources/upload");//保存的路径 System.out.println(attachs.length); System.out.println(realPath); for(MultipartFile attach:attachs){ System.out.println(attach); if(!attach.isEmpty()){ File file=new File(realPath+"/"+attach.getOriginalFilename()); try {
//底层数据io传输 attach.transferTo(file); } catch (IllegalStateException | IOException e) { e.printStackTrace(); } } } return "welcome"; }
dispatcherServlet-servlet.xml 代码：
<!-- 配置MultipartResolver,用于上传文件，使用Spring的CommonsMultiparResolver -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="5000000"/>
<property name="defaultEncoding" value="UTF-8"/>
</bean>
原文：http://www.cnblogs.com/zk753159/p/5018318.html