奶奶的：折腾了我二天，终于解决了！网上有很多例子。
但跟我的都不太一样，费话不多说了，上图 上代码： IE ,firefix,chrome 测试通过
js :这个主页面，部分代码，
function submitUpload(id){$("#imgSrc" + id +"").attr("alt", "图片上传中……");var imgID = id;if(id>0){imgID = 1;}var form=document.getElementById("formImg" + imgID +"");//form.action = getContextPath()+"/pc/sys/photoupload/singleup"; //必须先包含sys.js文件form.method = "post";form.idnum.value = id;var uriUp=domainStr+"/pc/sys/photoupload/singleup";form.action = uriUp;//用于返回var currentHref=window.location.href;var subHref=currentHref.substring(0, currentHref.lastIndexOf("/"));var input_domain = document.createElement("input");input_domain.setAttribute("name", "currentDomain");input_domain.setAttribute("value", subHref+"/callback-up.html");input_domain.setAttribute("type", "hidden");form.appendChild(input_domain);form.submit();//如果已经存在的图不是原图，则把服务器中的图片删除var currentPicPath = $("#imgUrl" + id +"").val();if(!contains(origPics, currentPicPath) && currentPicPath!=""){delImg(currentPicPath, true);//true 删除图片 }};// step2: 上传图片，后台回调 function callback(message) {var id=message.id;if(message.status.code=="0"){var filePath=message.filePath;var dbFilePath=message.dbFilePath;$("#imgUrl" + id +"").attr("value", dbFilePath);$("#imgSrc" + id +"").attr("src", filePath);}else{if(id!=0){$("#imgSrc" + id).parent().remove();}_message(message.status.message); //上传错误提示}};
服务端处理 主要代码：
// -----------------------------------------------------------------------------------// 单张图片上传，返回路径// ----------------------------------------------------------------------------------@RequestMapping(value = "/singleup", method = RequestMethod.POST)public void SingleUp(HttpServletRequest request, HttpServletResponse response, @RequestParam(value = "suffixDir", required = true) String suffixDir,@RequestParam(required = false, value = "cutPhoto") boolean cutPhoto, @RequestParam(required = false, value = "merchantId") String merchantId) throws Exception{StringBuffer basePath=new StringBuffer(request.getScheme());basePath.append("://");basePath.append(request.getServerName());basePath.append(":");basePath.append(request.getServerPort());basePath.append(request.getContextPath());basePath.append("/");basePath.append(FileUpload.getRealFilePath()/*.substring(0,FileUpload.getRealFilePath().length()-1)*/);User user = super.getLoginUser(request).getUser();if (user != null){String filePath = fileUploadService.singleUpload(request, user, suffixDir, Fs.FileUpLoadType.PHOTO, cutPhoto, merchantId);// 处理返回状态UpoladStatus result = getStatus(filePath);String PromptSize = "";if (UpoladStatus.类型无效或图片过大.toString().equals(result.toString())){// 2^10=1024PromptSize = "(最大限制:" + (FileUpload.photoSize >> 20) + "MB)";}PrintWriter out = response.getWriter();response.setHeader("Cache-Control", "none-cache");String idnum = request.getParameter("idnum");String reutrnDate = "{'id':'" + idnum + "','filePath':'" + basePath.append(filePath).toString() + "','dbFilePath':'" + filePath + "','status':{'code':'" + result.ordinal() + "','message':'" + result.name()+ PromptSize + "'}}";String currentDomain = request.getParameter("currentDomain");//<script>parent.parent.callback(" + reutrnDate + ");</script>String ret="<iframe id=\&;ifr\&; src=\&;"+currentDomain+"#"+reutrnDate+"\&;></iframe>";//log.info("ret===:"+ret);out.print(ret);}}
中间html 转换用，关健
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title></head><body><script type="text/javascript">//alert(document.domain);var returndata=self.location.hash.substring(1);var message = eval('(' + returndata + ')'); parent.parent.callback(message);</script></body></html>
我不善长写讲程，真接看代码吧….
参考博文:http://www.cnblogs.com/rainman/archive/2011/02/20/1959325.html#m3
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