利用原生的 file input上传 图片

2019-04-15 12:54发布

站内文章 / PIC单片机
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public void addPic(@RequestParam(value = "pic", required = false)MultipartFile pic) throws IOException { if (pic != null) { if (FileUtil.isAllowUpImg(pic.getOriginalFilename())) { InputStream stream=null; try { stream=pic.getInputStream(); } catch (Exception e) { e.printStackTrace(); } String subFolder = "adv";//路径中添加的一个字符串 String fileName=pic.getOriginalFilename(); if(stream==null){ throw new IllegalArgumentException("file or filename object is null"); } /** * 判断图片是否允许的类型 */ if(!FileUtil.isAllowUpImg(fileName)){ throw new IllegalArgumentException("不被允许的上传文件类型"); } /* 生成文件的路径 */ String ext = FileUtil.getFileExt(fileName); fileName = DateUtil.toString(new Date(), "mmss") + StringUtil.getRandStr(4) + "." + ext; String static_server_path= SystemSetting.getStatic_server_path(); String filePath = static_server_path + "/attachment/"; if(subFolder!=null){ filePath+=subFolder +"/"; } Calendar now = Calendar.getInstance(); int year=now.get(Calendar.YEAR); int month=now.get(Calendar.MONTH) + 1; int date=now.get(Calendar.DAY_OF_MONTH); int minute=now.get(Calendar.HOUR_OF_DAY); String timePath=""; if(year!=0){ timePath+=year+"/";; } if(month!=0){ timePath+=month+"/";; } if(date!=0){ timePath+=date+"/";; } if(minute!=0){ timePath+=minute+"/";; } String path = EopSetting.FILE_STORE_PREFIX+ "/attachment/" +(subFolder==null?"":subFolder)+"/"+timePath+"/"+fileName; filePath +=timePath; filePath += fileName; /** * 写入文件 将文件写出 */ FileUtils.copyInputStreamToFile(stream, new File(filePath)); } else { System.out.println("不允许上传的文件格式，请上传gif,jpg,bmp,swf格式文件。"); } } }
/** * 是否是允许上传的图片格式 * @param imgFileName * @return */ public static boolean isAllowUpImg(String imgFileName){ imgFileName = imgFileName.toLowerCase(); String allowTYpe = "gif,jpg,bmp,png,jpeg,swf,mp4"; if (!imgFileName.trim().equals("") && imgFileName.length() > 0) { String ex = imgFileName.substring(imgFileName.lastIndexOf(".") + 1, imgFileName.length()); return allowTYpe.toUpperCase().indexOf(ex.toUpperCase()) >= 0; } else { return false; } }form表单就很简单
 在测试过程中遇到一个问题 org.springframework.web.multipart.MultipartException: The current request is not a multipart request
当时就是应为没有写 enctype='multipart/form-data' 参考链接

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