applet中向servlet或者action中写object对象

最新推荐文章于 2024-10-13 14:26:28 发布

最新推荐文章于 2024-10-13 14:26:28 发布 · 128 阅读

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#Servlet #JSP #XML #工作

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本文介绍了一种通过URLConnection在Applet与Servlet之间传递Java Object的方法。具体实现了客户端序列化对象并发送到服务器，服务器端接收并反序列化该对象的过程。

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在applet中向action或者servlet写Object对象的时候，可以通过URLConnection来操作
applet端：


private URLConnection getConnect1(String urlstring) throws Exception
	{
		UserBean u = new UserBean();
		URL url = new URL(urlstring);
		URLConnection urlConn = null;
		ObjectOutputStream printout;
		urlConn = url.openConnection();
		urlConn.setDoInput(true);
		urlConn.setDoOutput(true);
		urlConn.setUseCaches(false);
		urlConn.setRequestProperty("Content-Type",
				"application/x-java-serialized-object");
		urlConn.setRequestProperty("Cookie", "JSESSIONID="+getCookie("JSESSIONID"));
		printout = new ObjectOutputStream(urlConn.getOutputStream());
		//printout.writeBytes(outputdate);
		printout.writeObject(u);
		printout.flush();
		printout.close();
		return urlConn;

	}

服务器端：


public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res) {
		ObjectInputStream oin;
		try {
			oin = new ObjectInputStream(req.getInputStream());
			Object obi = oin.readObject();
			if(obi != null){
				System.out.println(obi);
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		return null;

	}