java spring mvc文件上传

最新推荐文章于 2025-04-23 17:48:22 发布

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最新推荐文章于 2025-04-23 17:48:22 发布

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分类专栏： java web 文章标签： spring mvc 文件上传 commons-io

本文链接：https://blog.youkuaiyun.com/wang_pengyu/article/details/106991538

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1. 所需jar包

下载地址：

http://commons.apache.org/proper/commons-io/

http://commons.apache.org/proper/commons-fileupload/

2. jsp页面

  <body>
    <form action="panUpload" method="post" enctype="multipart/form-data">
		文件：<input type="file" name="file" />
		<input type="submit" value="上传">    
    </form>
  </body>

3. Controller. java页

@RequestMapping("/panUpload")
public String upload(HttpServletRequest req, HttpServletResponse res, Model model) throws IllegalStateException, IOException{
	CommonsMultipartResolver multipartResolver  = new CommonsMultipartResolver(req.getSession().getServletContext());
	if(multipartResolver.isMultipart(req)){
		MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest)req;
		Iterator iter = multiRequest.getFileNames();
		
		while(iter.hasNext()){
			MultipartFile file = multiRequest.getFile(iter.next().toString());
			if(file!=null){
				String path = "E:/springUpload"+file.getOriginalFilename();
				file.transferTo(new File(path));
			}
		}
	}
	return "/pan";
}

4. mvc.xml页添加bean

<bean id="multipartResolver"  
    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
    <!-- set the max upload size100MB -->  
    <property name="maxUploadSize">  
        <value>104857600</value>  
    </property>  
    <property name="maxInMemorySize">  
        <value>4096</value>  
    </property>  
</bean>