Spring CommonsMultipartResolver 上傳文件

可以在controller(spring mvc) 或者 action (struts mvc)
中直接使用CommonsMultipartResolver

 ...Controller...{

 //創建一個通用的多部分解析器.
    CommonsMultipartResolver commonsMultipartResolver = new 
 CommonsMultipartResolver(request.getSession().getServletContext());
 //設置編碼
    commonsMultipartResolver.setDefaultEncoding(”utf-8″);
  //判斷 request 是否有文件上傳,即多部分請求...
  if (commonsMultipartResolver.isMultipart(request))
    {
       //轉換成多部分request
       MultipartHttpServletRequest multipartRequest =       
     commonsMultipartResolver.resolveMultipart(request);

    // file 是指 文件上傳標籤的 name=值
     // 根據 name 獲取上傳的文件...
     MultipartFile file = multipartRequest.getFile("file");

     //上傳後記錄的文件...   
     File imageFile = new File("fileName");
     //上傳...
     file.transferTo(imageFile);

     }
   }

也可以在spring配置文件中配置

也可以在Spring的配置文件中添加
Xml代碼
<bean id=”multipartResolver” class=”org.springframework.web.multipart.commons.CommonsMultipartResolver”>
<property name=”defaultEncoding” value=”UTF-8″ />
</bean> 

jsp code

<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>