现如今许多web项目都设计到Flash头像上传,这套代码是我用过许多次的效果特别好,jsp部分可以结合页面的形式是弹框还是整个页面都行,只需把这段代码加进去,Java部分我的这个例子是springmvc的,大家可以结合自己的框架和命名对代码相应的地方进行改动。


1:jsp页面

<!--头像-->
                 <p id="swfContainer">
                     本组件需要安装Flash Player后才可使用,请从<a href="https://get.adobe.com/cn/flashplayer/?no_redirect" target="_blank">这里</a>下载安装。
                 </p>
                 <button type="button" id="upload" style="display:none;margin-top:8px;">swf外定义的上传按钮,点击可执行上传保存操作</button> 
             </div>  
             <script type="text/javascript" src="<%=path%>/resources/js/jquery-1.9.1.min.js"></script>
         <script type="text/javascript" src="<%=path%>/resources/js/swfobject.js"></script>
         <script type="text/javascript" src="<%=path%>/resources/js/fullAvatarEditor.js"></script>
         <script type="text/javascript">
             swfobject.addDomLoadEvent(function() {
                 //以下两行代码正式环境下请删除
                 
                 var swf = new fullAvatarEditor("<%=path%>/resources/swf/fullAvatarEditor.swf", "<%=path%>/resources/swf/expressInstall.swf", "swfContainer", {
                     id: 'swf',
                     upload_url: '<%=path%>/userInfo/upload.htm?userid=${sessionScope.user.userId}&username=${sessionScope.user.userName}', //上传接口
                     method: 'post', //传递到上传接口中的查询参数的提交方式。更改该值时,请注意更改上传接口中的查询参数的接收方式
                     src_upload: 0, //是否上传原图片的选项,有以下值:0-不上传;1-上传;2-显示复选框由用户选择
                     avatar_box_border_width: 0,
                     avatar_sizes: '100*100|50*50|32*32',
                     avatar_sizes_desc: '100*100像素|50*50像素|32*32像素'
                 }, function(msg) {
                     switch (msg.code)
                     {
                         case 1 :
 //                            alert("页面成功加载了组件!");
                             break;
                         case 2 :
 //                            alert("已成功加载图片到编辑面板。");
                             document.getElementById("upload").style.display = "inline";
                             break;
                         case 3 :
                             if (msg.type == 0)
                             {
                                 alert("摄像头已准备就绪且用户已允许使用。");
                             }
                             else if (msg.type == 1)
                             {
                                 alert("摄像头已准备就绪但用户未允许使用!");
                             }
                             else
                             {
                                 alert("摄像头被占用!");
                             }
                             break;
                         case 5 :
                             if (msg.type == 0)
                             {
                                 if (msg.content.sourceUrl)
                                 {
                                     
                                     alert("头像上传成功!");
                                     window.location.replace("${ctx}/userInfo/front_main_2.htm");
                                     //alert("原图已成功保存至服务器,url为:\n" +  msg.content.sourceUrl + "\n\n" + "头像已成功保存至服务器,url为:\n" + msg.content.avatarUrls.join("\n\n") + "\n\n传递的userid=" + msg.content.userid + "&username=" + msg.content.username);
                                 }
                                 else
                                 {
                                     
                                     alert("头像上传成功!");
                                     window.location.replace("${ctx}/userInfo/front_main_2.htm");
                                     //alert("头像已成功保存至服务器,url为:\n" + msg.content.avatarUrls.join("\n\n") + "\n\n传递的userid=" + msg.content.userid + "&username=" + msg.content.username);
                                 }
                             }
                             break;
                     }
                 }
                 );
                 document.getElementById("upload").onclick = function() {
                     swf.call("upload");
                 };
             });
         </script>
2java后台

/**
      * 头像上传
      * @param request
      * @param response
      * @return
      * @throws IOException 
      * @throws FileUploadException 
      */
     @RequestMapping(value="/upload.htm")  
     public void upload(HttpServletRequest request, HttpServletResponse response) throws IOException, FileUploadException { 
         String contentType = request.getContentType();
         PrintWriter    out = response.getWriter();
         if ( contentType.indexOf("multipart/form-data") >= 0 ){
             Result result = new Result();
             result.avatarUrls = new ArrayList<String>();
             result.success = false;
             result.msg = "Failure!";

             String userid;
             String username;

             FileItemFactory factory = new DiskFileItemFactory();
             ServletFileUpload upload = new ServletFileUpload(factory);
             FileItemIterator fileItems = upload.getItemIterator(request);
             //定义一个变量用以储存当前头像的序号
             int avatarNumber = 1;
             //取服务器时间+8位随机码作为部分文件名,确保文件名无重复。
             SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMddHHmmssS"); 
             String fileName = simpleDateFormat.format(new Date());
             Random random = new Random();
             String randomCode = "";
             for ( int i = 0; i < 3; i++ ){
                 randomCode += Integer.toString(random.nextInt(36), 36);
             }
             fileName = fileName + randomCode;
             //基于原图的初始化参数
             String initParams = "";
             BufferedInputStream    inputStream;
             BufferedOutputStream outputStream;
             //遍历表单域
             while( fileItems.hasNext()){
                 FileItemStream fileItem = fileItems.next();
                 String fieldName = fileItem.getFieldName();
                 //是否是原始图片 file 域的名称(默认的 file 域的名称是__source,可在插件配置参数中自定义。参数名:src_field_name)
                 Boolean isSourcePic = fieldName.equals("__source");
                 //当前头像基于原图的初始化参数(只有上传原图时才会发送该数据,且发送的方式为POST),用于修改头像时保证界面的视图跟保存头像时一致,提升用户体验度。
                 //修改头像时设置默认加载的原图url为当前原图url+该参数即可,可直接附加到原图url中储存,不影响图片呈现。
                 if ( fieldName.equals("__initParams")){
                     inputStream = new BufferedInputStream(fileItem.openStream());
                     byte[] bytes = new byte [inputStream.available()];
                     inputStream.read(bytes); 
                     initParams = new String(bytes, "UTF-8");
                     inputStream.close();
                 }else if (isSourcePic || fieldName.startsWith("__avatar")){//如果是原始图片 file 域的名称或者以默认的头像域名称的部分“__avatar”打头(默认的头像域名称:__avatar1,2,3...,可在插件配置参数中自定义,参数名:avatar_field_names)
                     String virtualPath = File.separator+"upload"+File.separator+"img" + avatarNumber + "_" + fileName + ".jpg";//原始图片(默认的 file 域的名称是__source,可在插件配置参数中自定义。参数名:src_field_name)。
                     String virtualPath1 = "/upload/img" + avatarNumber + "_" + fileName + ".jpg";//原始图片(默认的 file 域的名称是__source,可在插件配置参数中自定义。参数名:src_field_name)。
                     if( isSourcePic){
                         String sourceFileName = fileItem.getName();    //文件名,如果是本地或网络图片为原始文件名、如果是摄像头拍照则为 *FromWebcam.jpg    
                         String sourceExtendName = sourceFileName.substring(sourceFileName.lastIndexOf('.') + 1);//原始文件的扩展名(不包含“.”)
                         result.sourceUrl = virtualPath = String.format(File.separator+"upload"+File.separator+"img_%s.%s", fileName, sourceExtendName);
                     }else{//头像图片(默认的 file 域的名称:__avatar1,2,3...,可在插件配置参数中自定义,参数名:avatar_field_names)。
                         result.avatarUrls.add(virtualPath1);
                         avatarNumber++;
                     }
                     inputStream = new BufferedInputStream(fileItem.openStream());
                     outputStream = new BufferedOutputStream(new FileOutputStream(request.getRealPath("") + virtualPath));
                     Streams.copy(inputStream, outputStream, true);
                     inputStream.close();
                     outputStream.flush();
                     outputStream.close();
                 }else{//注释① upload_url中传递的查询参数,如果定义的method为post请使用下面的代码,否则请删除或注释下面的代码块并使用注释②的代码
                     inputStream = new BufferedInputStream(fileItem.openStream());
                     byte[] bytes = new byte [inputStream.available()];
                     inputStream.read(bytes); 
                     inputStream.close();
                     if (fieldName.equals("userid")){
                         result.userid = new String(bytes, "UTF-8");
                     }else if (fieldName.equals("username")){
                         result.username = new String(bytes, "UTF-8");
                     }
                 }
             }
             //注释② upload_url中传递的查询参数,如果定义的method为get请使用下面注释的代码
             /*
             result.userid = request.getParameter("userid");
             result.username = request.getParameter("username");
             */
             if ( result.sourceUrl != null ){
                 result.sourceUrl += initParams;
             }
             result.success = true;
             result.msg = "Success!";
             List<String> photos = result.avatarUrls;
             String photo="";
             for(int i=0;i<photos.size();i++){
                 if(i<photos.size()-1){
                      photo=photo+photos.get(i)+",";}
                 else{
                     photo=photo+photos.get(i);
                 }
             }
             
             UserInfo  userInfo=userInfoService.getUserInfo(Integer.parseInt(result.userid ));
             userInfo.setPhoto(photo);
             userInfoService.user_update(userInfo);
             
             //将修改后的用户信息存入session
             request.getSession().setAttribute("user", userInfo);
             request.getSession().setAttribute("navigationphoto", photos.get(0));
             
             //返回图片的保存结果(返回内容为json字符串,可自行构造,该处使用fastjson构造)
             out.println(JSON.toJSONString(result));
         }
     }