凯哥Java 2019-10-26
<!-- 配置文件解析器,id必须为multipartResolver--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="10485760" /> </bean>
<h3>springmvc:文件上传</h3> <form action="file/upload2" method="post" enctype="multipart/form-data"> 选择文件:<input type="file" name="upload2" /><br/> <input type="submit" value="上传" /> </form>
/** * SpringMVC文件上传 * @param request * @return * @throws Exception * MultipartFile upload2: upload2为提交文件按钮的name值,表示文件上传项 */ @RequestMapping("/upload2") public String fileupload1(HttpServletRequest request, MultipartFile upload2) throws Exception { System.out.println("springmvc文件上传"); // 使用fileupload组件完成组件上传 // 上传的位置 // request.getSession().getServletContext():拿到最大的域对象,getRealPath():拿到某路径下的绝对路径 String path = request.getSession().getServletContext().getRealPath("/uploads/"); // 判断该路径是否存在 File file = new File(path); if (!file.exists()){ // 创建文件夹 file.mkdirs(); } // springmvc不需要自己解析request // 获取上传文件名 String filename = upload2.getOriginalFilename(); // 把文件的名称设置为唯一值,uuid String uuid = UUID.randomUUID().toString().replace("-", ""); filename = uuid + "_" + filename; // 完成文件上传 upload2.transferTo(new File(file,filename)); return "success"; }