java 实现下载文件 支持safari,ff,ie等

?点击执行的action

public String docattach (){String jssessionid=CookieMgr.readCookies(this.getRequest(),"jsessionid");String strAttchId = this.getRequest().getParameter("attachid");HashMap map = new HashMap();InputStream inputStream=null;try {inputStream = docuInfoManager.getattachment(Long.parseLong(strAttchId),map);if (inputStream != null) {inputStreamMap.put(strAttchId+jssessionid,inputStream);DocAttachmentInfo docattachmentInfo = (DocAttachmentInfo) map.get("docattachmentInfo");if (docattachmentInfo.getAttchMimetype().equalsIgnoreCase(""))if (docattachmentInfo.getAttchFileext().equalsIgnoreCase(".jpg"))setContentType("image/jpg");else if (".pdf".equals(docattachmentInfo.getAttchFileext()))setContentType("application/pdf");else if (".doc".equals(docattachmentInfo.getAttchFileext()))    setContentType("application/msword");else if (".xls".equals(docattachmentInfo.getAttchFileext()))    setContentType("application/vnd.ms-excel");else if (".rar".equals(docattachmentInfo.getAttchFileext()))    setContentType("application/x-zip-compressed");elsesetContentType(docattachmentInfo.getAttchMimetype());// 不同类型的文件对应不同的MIME类型// 文件名String fName = docattachmentInfo.getAttchFilename();fName = new String(fName.getBytes("UTF-8"),"iso-8859-1"); setDownloadFileName(fName); return "docattach";} else {this.getRequest().setAttribute("message", "附件不存在!");return this.ERROR;}} catch (Exception e) {e.printStackTrace();this.getRequest().setAttribute("message", "系统出现异常!");return this.ERROR;} }

?点击下载保存后的流???

public InputStream getInputStreamAttachment() {InputStream inputStream=null; String jssessionid=CookieMgr.readCookies(this.getRequest(),"jsessionid"); if(null!=jssessionid){String strAttchId = this.getRequest().getParameter("attachid");if(inputStreamMap.get("attchId")!=null) {strAttchId = inputStreamMap.get("attchId").toString();inputStreamMap.remove("attchId");}inputStream = (InputStream) inputStreamMap.get(strAttchId  + jssessionid);inputStreamMap.remove(strAttchId+ jssessionid ); }return inputStream;}

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struts.xml配置文件

<action name="emobileservices" ><result name="ajaxpage">/apps/fulltextsearch/search/emobile/EmobileSearch.jsp</result><result name="success">/apps/fulltextsearch/search/emobile/EmobileSearchIndex.jsp</result><result name="docattach" type="stream">    <param name="contentType">${contentType}</param>                <param name="inputName">inputStreamAttachment</param>                 <param name="bufferSize">4096</param>             <param name="contentDisposition">attachment;filename="${downloadFileName}"</param>            </result>             <result name="docDetail">/apps/fulltextsearch/search/emobile/emobileDocDetail.jsp</result><result name="error">/common/emobileErrMsg.jsp</result></action> 

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注意：此配置将会支持safari浏览器