場景

照片上傳時(shí)給重命名時(shí)使用UUID進(jìn)行重命名。

實(shí)現(xiàn)

在實(shí)現(xiàn)方法上傳的方法中調(diào)用工具類的地方

Map<String, Object> result = ImageUtil.getInstance().uploadImgByUuid(Constants.UPLOAD_IMG_COMMENTFILE,imgFile);

圖片上傳工具類中的方法：

public class ImageUtil {private static ImageUtil instance;/*** 定義私有構(gòu)造方法實(shí)現(xiàn)單例*/public ImageUtil() {super();}public synchronized static ImageUtil getInstance() {if(instance == null) {instance = new ImageUtil();}return instance;}public Map<String,Object> uploadImgByUuid(String dir,MultipartFile file) {Map<String,Object> jsonResult = new HashMap<String, Object>();String msg = "";try {String fileName = file.getOriginalFilename();long fileSize = file.getSize();String exts = fileName.substring(fileName.lastIndexOf(".") + 1);if (fileSize > ResourceUtil.getUploadImageMaxSize()) {msg = "上傳圖片應(yīng)小于2MB!";jsonResult = JsonResult.jsonWsReturn(1, msg ,false);LogService.getInstance(this).info("『功能：存儲(chǔ)圖片』失敗 ,msg:" + msg);return jsonResult;}if (exts.indexOf(ResourceUtil.getUploadImageExts()) != -1) {msg = "上傳格式應(yīng)屬于：" + ResourceUtil.getUploadImageExts();jsonResult = JsonResult.jsonWsReturn(1, msg ,false);LogService.getInstance(this).info("『功能：存儲(chǔ)圖片』 ,msg:" + msg);return jsonResult;}//圖片命名規(guī)則：uuid命名方式fileName =UUID.randomUUID().toString()+"."+exts;String path = dir + File.separator + fileName;//刪除原文件//防止誤傳地址誤刪信息// 存儲(chǔ)路徑String dirPath = ResourceUtil.getUploadImageRelativeRoot2()+ dir;String filePath = ResourceUtil.getUploadImageRelativeRoot2() + path;LogService.getInstance(this).debug(filePath);boolean resultDir = FileUtil.makedir(dirPath);if (resultDir == true) {File targetFile = new File(filePath);?file.transferTo(targetFile);jsonResult = JsonResult.jsonWsReturn(0,fileName ,true);LogService.getInstance(this).info("『功能：儲(chǔ)存圖片』: ,fileName:"+ fileName + " ,msg:" + msg);} else {msg = "建立文件夾" + dirPath + "失敗!";jsonResult = JsonResult.jsonWsReturn(1, msg ,false);LogService.getInstance(this).error("建立文件夾" + dirPath + "失敗，完整路徑為：dirPath");}} catch (Exception e) {msg = "上傳圖片失敗!";jsonResult = JsonResult.jsonWsReturn(1, msg ,false);LogService.getInstance(this).error("上傳圖片失敗",e);}return jsonResult;} }

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