SpringMvc上传文件

 

 

• Spring配置

 

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
	    <!-- 设置上传文件的最大尺寸为1MB -->  
	    <property name="maxUploadSize">  
	        <value>1048576</value>  
	    </property>  
	</bean>

 

• jsp

 

<form action="<%=basePath%>upload.do" method="post" enctype="multipart/form-data">
    	<input type="file" id="file" name="file" ><br>
    	<input type="submit" value="上  传"/>
    </form>

 

 

• java代码

 

 

@RequestMapping(value="/upload.do", method=RequestMethod.POST)
	public void uploadFile(HttpServletRequest request, HttpServletResponse response) throws IOException {
		System.out.println(".....");
		response.setContentType("charset=UTF-8");
		response.setCharacterEncoding("UTF-8");
		//有人说这个地方转换报错
		//org.apache.catalina.connector.RequestFacade cannot be cast to org.springframewor
		//问题就在于，你在页面Method="post", 但是Controller的RequestMapping,你没有标注， 所以自然会报错
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest)request;
		// 获得文件   
        MultipartFile files = multipartRequest.getFile("file");   
        // 获得文件名
        String fileName = files.getOriginalFilename();
        System.out.println(fileName);
        // 获得输入流 
        InputStream input = files.getInputStream();  
        String filePath = "F:/TEMP/";
		if (files.getSize() > 0) {
			File targetFile = new File(filePath+fileName);
			if(targetFile.mkdirs()){//创建此抽象路径名指定的目录，包括所有必须但不存在的目录
				files.transferTo(targetFile);// 写入目标文件
			}
		}
		response.getWriter().print("SUCCESS");
	}