swfupload上传 firefox flash session问题【备忘】

1、后台保存session。

public class MySessionContext {
	private static HashMap mymap = new HashMap();

	public static synchronized void AddSession(HttpSession session) {
		if (session != null) {
			mymap.put(session.getId(), session);
		}
	}

	public static synchronized void DelSession(HttpSession session) {
		if (session != null) {
			mymap.remove(session.getId());
		}
	}

	public static synchronized HttpSession getSession(String session_id) {
		if (session_id == null)
			return null;
		return (HttpSession) mymap.get(session_id);
	}
}

public class MySessionListener implements HttpSessionListener {
	public void sessionCreated(HttpSessionEvent httpSessionEvent) {
		MySessionContext.AddSession(httpSessionEvent.getSession());
	}

	public void sessionDestroyed(HttpSessionEvent httpSessionEvent) {
		HttpSession session = httpSessionEvent.getSession();
		MySessionContext.DelSession(session);
	}
}

<listener>
 <listener-class>com.smarter.filter.MySessionListener</listener-class>
</listener>

2、request url 中带上sessionid参数

upload_url : rootPath+"uploadFileAc!upSwf.s", //接收上传的服务端url
	     flash_url : rootPath+"d/scripts/swfupload/Flash/swfupload.swf",//swfupload压缩包解压后swfupload.swf的url
	     button_placeholder_id : "swfu-placeholder1",//上传按钮占位符的id
	     file_types : "*.jpg;*.gif;*.png",
	     file_post_name : "uploadForm.file",
	     post_params:{
	    	 "uploadForm.type":"2",
	         "jsessionid":sessionId
	     },
	     use_query_string : true,

3、后台通过id获取session进行处理。

if(request.getParameter("jsessionid") != null){
			session = MySessionContext.getSession(request.getParameter("jsessionid"));
		}