springMVC框架-图片上传接口

Controler层里面代码内容

@RequestMapping(value="/uploadImg", method=RequestMethod.POST) @ResponseBody public String uploadImgController(@RequestParam(value="img")MultipartFile img){ File f = new File("/images"); try{ FileUtils.copyInputStreamToFile(img.getInputStream(), f); }catch(Exception e){ e.printStackTrace(); } return "上传成功"; }

new File里面的路径是文件保存路径

HTML文件内容

<form action="http://localhost/component/common/uploadImg" method="post" enctype="multipart/form-data"> 头像：<input type="file" name="img" /><br/> <input type="image" src="./images/img_submit.gif" /> </form>

以上是直接上传文件到指定目录下，如果需要得到储存图片的路径，修改如下： controller层

@RequestMapping(value="/uploadImg", method=RequestMethod.POST) @ResponseBody public String uploadImgController(@RequestParam(value="img")MultipartFile img, HttpServletResponse response){ JSONObject result = new JSONObject(); boolean flag = true; try { flag = pictureUploadService.upload(img, result); } catch (Exception e) { result.put("mess", "调用失败"); flag = false; e.printStackTrace(); } result.put("flag", flag); response.setContentType("text/html;charset=UTF-8"); //解决跨域名访问问题 response.setHeader("Access-Control-Allow-Origin", "*"); return result.toString(); }

service层

/** * 上传图片 * @param file * @param params * @return * @throws Exception */ public boolean upload(MultipartFile file, JSONObject params) throws Exception{ //过滤合法的文件类型 String fileName = file.getOriginalFilename(); String suffix = fileName.substring(fileName.lastIndexOf(".")+1); String allowSuffixs = "gif,jpg,jpeg,bmp,png,ico"; if(allowSuffixs.indexOf(suffix) == -1){ params.put("resultStr", "not support the file type!"); return false; } //生成唯一的文件名 public String getUniqueFileName() { String str = UUID.randomUUID().toString(); return str.replace("-", ""); } //获取网络地址、本地地址头部 Properties config = new Properties(); config.load(this.getClass().getClassLoader().getResourceAsStream("config.properties")); String urlPath = config.getProperty("urlRoot"); String localPath = config.getProperty("localRoot"); //创建新目录 String uri = File.separator + DateUtil.getNowDateStr(File.separator); File dir = new File(localPath + uri); if(!dir.exists()){ dir.mkdirs(); } //创建新文件 String newFileName = StringUtil.getUniqueFileName(); File f = new File(dir.getPath() + File.separator + newFileName + "." + suffix); //将输入流中的数据复制到新文件 FileUtils.copyInputStreamToFile(file.getInputStream(), f); String Url = (urlPath + uri.replace("\\", "/") + newFileName + "." + suffix); //插入到数据库 //... params.put("resultStr", Url); return true; }

原文地址：http://www.cnblogs.com/lhat/p/5156327.html