Spring Mvc 上传图片全部过程 - JAVA

我也是google和百度和很久一点一点弄的……，希望能帮助到你。

直接看代码吧……

     图片:  
  
 	  
 	  预览
 	  修改
     



  


  
		
    
     
      
       图片路径: 
      图片大小不超过2M
       
      
     
   
	
  


  

init: function(uuid) {
    // this.identifier 是设定的全局变量，uuid是页面加载时的唯一编码
    this.identifier = uuid;
    // 图片上传
    var idf = this.identifier;
    var that = this;
    $('#'+idf+'-tforma').ajaxForm({
        dataType : 'json',
	beforeSubmit : function(a, f, o) {
	  $('#'+idf+'-statusPic').html('上传中...');
	},
        success : function(data) {	
 	 if (typeof (data) == 'string')
	   data = eva l('(' + data + ')');
	 $('#'+idf+'-uploadWindow').window('close');
	 if ("success" == data.message) {
		 $('div[identifier='+that.identifier+']').find('#picPath').val(data.path);
		 $("#"+idf+"-path").val(data.path);
		 $("#"+idf+"-statusPic").html( "预览");
	 } else if ("error" == data.message)
		 $("#"+idf+"-statusPic").html("非图片数据!");
	 else
		 $("#"+idf+"-statusPic").html("上传数据错误!");
		  $("#"+idf+"-itemPic").val('');
	 },
	 error : function(jqXHR, textStatus,errorThrown) {
		 $('#$'+idf+'-uploadWindow').window('close');
		 //console.log("error:"+ data.responseText);
		 //console.log("status:" + textStatus);
		 $("#"+idf+"-statusPic").html("上传失败!");
		 $("#"+idf+"-itemPic").val('');
	 } });
	}

/**
	 * 商品上传指定的图片
	 * 
	 * @param request
	 * @param response
	 * @param command
	 * @return
	 * @throws Exception
	 */
	public ModelAndView uploadFile(HttpServletRequest request, HttpServletResponse response, SmartMenu command) throws Exception {
		PrintWriter writer = null;
		try {
			response.setContentType("application/json; charset=GBK");
			writer = response.getWriter(); 

			MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
			String source = request.getSession().getServletContext().getRealPath("/");
			// 获得第1张图片（根据前台的name名称得到上传的文件）
			MultipartFile imgFile1 = multipartRequest.getFile("itemPic");
			// 判断是否是重复上传图片（如果重复将删除旧图片）
			String sourceImg = request.getParameter("path");
			if (imgFile1.getContentType().split("/")[0].equals("image")) {
				if (null != sourceImg && !"".equals(sourceImg)) {
					System.out.println("旧图片路径:" + sourceImg);
					File f = new File(source + sourceImg);
					if (f.isFile()) {
						f.delete();
						System.out.println(" 删除成功");
					} else
						System.out.println(" 删除失败!");
				}
				String path = null;
				if (imgFile1 != null && imgFile1.getSize() > 0) {
					path = this.getSmartMenuService().storeFile(request.getSession(), imgFile1);
				}
				writer.print("{\"message\":\"success\",\"path\":\"" + path.replace("\\", "\\\\") + "\"}");
			} else
				writer.print("{\"message\":\"error\"}");
		} catch (Exception e) {
			// TODO: handle exception
			writer.print("{\"message\":\"no\"}");
		}
		writer.flush();
		writer.close();
		return null; 
	}


	@Override
	public String storeFile(HttpSession session, MultipartFile file) throws Exception {
		// TODO Auto-generated method stub
		String fileType = file.getContentType().split("/")[1];
		String path = session.getServletContext().getRealPath("/");
		String separator = File.separator;
		String uuid = UUID.randomUUID().toString();
		FileOutputStream fos = null;
		String fileName = null;
		try {
			InputStream fis = file.getInputStream();
			// 转换文件为png格式，并保存在同名目录下
			File files = new File(path + "\\dishpic");

Spring Mvc 上传图片全部过程(一)