Action接收 xml数据&&Struts2 的ServletActionContext.getRequest与HttpServlet中的request的区别

xtawgipl 2011-03-28 02:40:10

在用java application发向一个Action发一个xml数据，用ServletActionContext.getRequest().getReader()不能收到数据。
而如果发给一个servlet则可以用同样的方法收到传过来的xml数据，Action中的request和HttpServlet的request有什么区别么？为什么有这样的结果？

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java 发xml





URL url = null;

		BufferedReader bufferReander = null;

		InputStreamReader inputStreamReader = null;

		String[] reqStr = {path,xml};

		url = new URL(reqStr[0]);

		HttpURLConnection httpUrl = (HttpURLConnection) url.openConnection();

		httpUrl.setDoOutput(true);

		httpUrl.setDoInput(true);



		PrintWriter out = new PrintWriter(httpUrl.getOutputStream());

		out.print(reqStr[1]);

		out.flush();

		out.close();

接收xml：





                   ServletInputStream xmlStream = request.getInputStream();//Servlet方式

                   //ServletInputStream xmlStream = ServletActionContext.getRequest().getInputStream();

		BufferedReader reader= new BufferedReader(new InputStreamReader(xmlStream));

		StringBuilder builder = new StringBuilder();

		char[] cbuf = new char[1];

		int num = reader.read(cbuf);

		while(num != -1){

			builder.append(String.valueOf(cbuf));

			num = reader.read(cbuf);

		}

		logger.info("builder.toString() = " + builder.toString());//Servlet方式能收到xml，Action不能。

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