fix file upload

src/main/java/com/izouma/awesomeadmin/web/AssetsController.java

@@ -2,6 +2,7 @@ package com.izouma.awesomeadmin.web;
 
 import com.izouma.awesomeadmin.dto.Result;
 import com.izouma.awesomeadmin.service.OSSFileService;
+import org.apache.commons.io.FileUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -17,6 +18,7 @@ import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.text.SimpleDateFormat;
 import java.util.*;
+import java.util.regex.Pattern;
 
 /**
  * Created by xiongzhu on 2017/3/8.
@@ -58,7 +60,9 @@ public class AssetsController {
                         for (int i = 0; i < 8; i++) {
                             randomCode.append(Integer.toString(random.nextInt(36), 36));
                         }
-                        String uploadPath = String.format("images/%s-%s.jpg", new SimpleDateFormat("yyyy-MM-dd-hh-mm-ss").format(new Date()), randomCode);
+                        String ext = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
+                        String fileType = file.getContentType().substring(0, file.getContentType().indexOf("/"));
+                        String uploadPath = String.format("%s/%s-%s%s", fileType, new SimpleDateFormat("yyyy-MM-dd-hh-mm-ss").format(new Date()), randomCode, ext);
                         String path = OSSFileService.upload(file.getInputStream(), uploadPath);
                         paths.add(path);
                     } catch (IOException e) {