SpringMvc上传

 

@RequestMapping(value = WebUrlConstant.UPLOADFILE)
	@ResponseBody
	public Map<String, Object> uploadFile(HttpServletRequest request,HttpServletResponse httpresponse) {
		try {
			// 转型为MultipartHttpRequest  
	        MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;  
	        // 根据前台的name名称得到上传的文件  
	        MultipartFile file = multipartRequest.getFile("upfile");  
	        if(!file.isEmpty()){
	        	boolean fileFlag = true;
	        	if(file.getSize()>1024*1024*10){
	        		jsonMap.put("flag", RESPONSE_FAIL);
	    			jsonMap.put("message", "上传文件大小超过10M");
	    			return jsonMap;
	        	}
	        	// 获得文件名：  
		        String realFileName = file.getOriginalFilename();
		        // 截取文件后缀名
				String fuffix = realFileName.substring(realFileName
						.lastIndexOf("."));
				if (!(".jpg".equals(StringUtils.lowerCase(fuffix))
						|| ".png".equals(StringUtils.lowerCase(fuffix))
						|| ".pdf".equals(StringUtils.lowerCase(fuffix))
						|| ".doc".equals(StringUtils.lowerCase(fuffix))
						|| ".docx".equals(StringUtils.lowerCase(fuffix)))) {
					jsonMap.put("flag", RESPONSE_FAIL);
	    			jsonMap.put("message", "文件不是JPG/PNG/PDF/DOC/DOCX格式");
	    			return jsonMap;
				}
	        	
		        // 获取路径  
		        String ctxPath = PropertiesUtils.getValue("filePath");  
		        // 创建文件  
		        File dirPath = new File(ctxPath);  
		        if (!dirPath.exists()) {  
		            dirPath.mkdirs();  
		        }  
		        File uploadFile = new File(ctxPath + File.separatorChar + realFileName); 
		        FileCopyUtils.copy(file.getBytes(), uploadFile);  
		        jsonMap.put("fileName", realFileName);
	        }

			 jsonMap.put( "flag", getFlag() );
		     jsonMap.put( "message", getMessage() );
		       
		} catch (Exception e) {
			log.error(e.getMessage(), e);
		}

		 return jsonMap;
	}

 

<!-- 文件上传 -->
<bean id="multipartResolver"  
    class="org.springframework.web.multipart.commons.CommonsMultipartResolver" >
    <property name="maxUploadSize">  
            <value>104857600</value>  
        </property>  
        <property name="maxInMemorySize">  
            <value>4096</value>  
        </property>
    </bean>