spring mvc 批量上传+文件上传

2012-05-25 15:16 java ee spring 阅读(690) 评论(0) 编辑收藏举报

简单3步走。搞定！

上传文件成功后：

1 上传文件核心方法

public static String saveWebImgFile(MultipartFile imgFile){
		String webFilePath = "";
		if(imgFile.getSize() > 0 && isImage(imgFile.getContentType())){
			FileOutputStream fos = null;
			try {
				byte[] b = imgFile.getBytes();
				/* 构造文件路径 */
				String webRoot = PathUtil.classPath();
				SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
				SimpleDateFormat sdf2 = new SimpleDateFormat("HHmmssSSS");
				String datePath = sdf.format(new Date());
				String datePath2 = sdf2.format(new Date());
				String dirPath = webRoot + "/../../upload/img/" + datePath;
				File dir = new File(dirPath);
				if(!dir.exists()){
					dir.mkdirs();
				}
				String fileName = imgFile.getOriginalFilename();
				String filePath = dirPath + "/" + datePath2 + getImgSuffix(fileName);
				webFilePath = "/upload/img/" + datePath + "/" + datePath2 + getImgSuffix(fileName);
				File file = new File(filePath);
				
				dir.setWritable(true);
				file.setWritable(true);
				
				fos = new FileOutputStream(file);
				fos.write(b);
				
			} catch (IOException e) {
				throw new RuntimeException("文件上传失败！" ,e);
			}finally{
				if(fos != null){
					try {
						fos.close();
					} catch (IOException e) {
						throw new RuntimeException("文件上传->输出流关闭失败！！！！" ,e);
					}
				}
			}
		}
		
		return webFilePath;
	}

2控制器代码

@RequestMapping(value = "/imgupload")
	 public String handleFormUpload(MultipartHttpServletRequest request) throws Exception{  
		 List<MultipartFile> files = request.getFiles("file");
		 Map<String, String> imgs = new HashMap<String, String>();
		 for (int i = 0; i < files.size(); i++) {
			String webpath = FileUtil.saveWebImgFile(files.get(i));
			imgs.put("img"+i, webpath);
		}
		request.setAttribute("imgs", imgs);
		return showImageList(request);
	 }

3 页面代码

 <body>
    	商品图片设置：
   	<form method="post"  enctype="multipart/form-data" action="product/imgupload" name="imagefrm">
	   	<table>
	   		<tr>
	   		<td>商品大图：默认宽度600px,高度600px</td>
	   		</tr>
	   		<tr>
	   		<td><input type="file" name="file"/><c:if test="${imgs.img0!=null&&imgs.img0!=''}"><img src="<%=basePath %>${imgs.img0 }" style="width:40;height:40px;"/></c:if></td>
	   		</tr>
	   		<tr>
	   		<td>添加多角度图片：默认宽度50px,高度50px</td>
	   		</tr>
	   		<tr>
	   		<td><input type="file" name="file"/><c:if test="${imgs.img1!=null&&imgs.img1!=''}"><img src="<%=basePath %>${imgs.img1 }" style="width:40;height:40px;"/></c:if></td>
	   		</tr>
	   		<tr>
	   		<td><input type="file" name="file"/><c:if test="${imgs.img2!=null&&imgs.img2!=''}"><img src="<%=basePath %>${imgs.img2 }" style="width:40;height:40px;"/></c:if></td>
	   		</tr>
	   		<tr>
	   		<td><input type="file" name="file"/><c:if test="${imgs.img3!=null&&imgs.img3!=''}"><img src="<%=basePath %>${imgs.img3 }" style="width:40;height:40px;"/></c:if></td>
	   		</tr>
	   		<tr>
	   		<td><input type="file" name="file"/><c:if test="${imgs.img4!=null&&imgs.img4!=''}"><img src="<%=basePath %>${imgs.img4 }" style="width:40;height:40px;"/></c:if></td>
	   		</tr>
	   		<tr>
	   		<td><input type="submit" value="上传所有图片"/></td> 
	   		</tr>
	   	</table>
	</form>
  </body>

刷新页面返回顶部

java ee spring

spring mvc 批量上传+文件上传

About