Java上传图片工具类
import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.multipart.MultipartFile; import java.io.*; import java.text.SimpleDateFormat; import java.util.Date; /** * 图片上传工具类 */ public class ImageUploadUtil { public static String uploadFile(@RequestParam("file") MultipartFile file, String strPath) throws IOException { String fileName = file.getOriginalFilename();//获取文件名 fileName = getFileName(fileName); String filepath = getUploadPath(strPath); if (!file.isEmpty()) { try (BufferedOutputStream out = new BufferedOutputStream( new FileOutputStream(new File(filepath + File.separator + fileName)))) { out.write(file.getBytes()); out.flush(); return fileName; } catch (FileNotFoundException e) { return "error";//( "上传文件失败 FileNotFoundException:" + e.getMessage()); } catch (IOException e) { return "error";//( "上传文件失败 IOException:" + e.getMessage()); } } else { return "error";//( "上传文件失败,文件为空"); } } /** * 文件名后缀前添加一个时间戳 */ private static String getFileName(String fileName) { int index = fileName.lastIndexOf("."); final SimpleDateFormat sDateFormate = new SimpleDateFormat("yyyymmddHHmmss"); //设置时间格式 String nowTimeStr = sDateFormate.format(new Date()); // 当前时间 fileName = fileName.substring(0, index) + "_" + nowTimeStr + fileName.substring(index); return fileName; } /** * 获取当前系统路径 */ private static String getUploadPath(String strPath) throws IOException { File file = new File(strPath); File fileParent = file.getParentFile(); if (!fileParent.exists()) { fileParent.mkdirs(); } if (!file.exists()) file.mkdirs(); return file.getAbsolutePath(); } }