spring MVC 文件上传

原文链接：http://apps.hi.baidu.com/share/detail/34190740

jsp页面：

<form action="upload.do" method="post" enctype="multipart/form-data">
    <table border="1">
    <tr>
    <td>名称：</td>
    <td><input type="text" id="name" name="name"></td>
    </tr>
    <tr>
    <td>路径</td>
    <td><input type="file" id="file" name="file"/></td>
    </tr>
    <tr>
    <td colspan="2"><input type="submit" value="上传"/></td>
    </tr>
    </table>
    </form>

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public ModelAndView handleRequest(HttpServletRequest arg0,
   HttpServletResponse arg1) throws Exception {
   //转型为MultipartHttpRequest
  MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest)arg0;
  //根据前台的name名称得到上传的文件
  MultipartFile file = multipartRequest.getFile("file");   
      // 获得文件名：   
      String  realFileName = file.getOriginalFilename();  
      System.out.println("获得文件名："+realFileName);
      //获取路径
      String ctxPath = arg0.getContextPath();
      ctxPath = arg0.getSession().getServletContext().getRealPath("/")+"\\"+"images\\";
      System.out.println("路径："+ctxPath);
      // 创建文件
      File dirPath = new File(ctxPath);
      if(!dirPath.exists())
      {
       dirPath.mkdir();
      }
      File uploadFile = new File(ctxPath+realFileName);
      //
      FileCopyUtils.copy(file.getBytes(), uploadFile);

       return null;
 }

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XML文件里配置上传文件的大小

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="1048576"/>
        <property name="maxInMemorySize" value="4096"/>
   </bean>

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切记要---添加commons-fileupload-1.2.jar，添加commons-io-1.3.1.jar