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POHow to through a java application to transfer data to the servlet
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copied!<p>I want to pass a java application sent a string that is a json,it isn't get this json in servlet, how do I do, who can help me? This is my servlet code:</p> <pre><code>public void service(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { BufferedInputStream in = new BufferedInputStream(req.getInputStream()); byte[] data = null; byte[] bts = new byte[1024]; int index; while ((index = in.read(bts)) >= 0) { if (data == null) { data = new byte[index]; System.arraycopy(bts, 0, data, 0, index); } else { byte[] tmp = data; data = new byte[tmp.length + index]; System.arraycopy(tmp, 0, data, 0, tmp.length); System.arraycopy(bts, 0, data, tmp.length, index); } } String json = new String(data); System.out.print(json); } </code></pre> <p>and this is my java application:</p> <pre><code>String _url = "http://localhost:8080/jsf/test"; URL url = null; HttpURLConnection urlconn = null; String json = URLEncoder.encode(JSONObject.fromObject(req) .toString(), "UTF-8"); url = new URL(_url); urlconn = (HttpURLConnection) url.openConnection(); urlconn.setRequestMethod("POST"); urlconn.setDoOutput(true); urlconn.setDoInput(true); OutputStream out = urlconn.getOutputStream(); out.write(json.getBytes("UTF-8")); out.flush(); out.close(); BufferedReader rd = new BufferedReader(new InputStreamReader( urlconn.getInputStream(), "UTF-8")); StringBuffer sb = new StringBuffer(); int ch; while ((ch = rd.read()) > -1) { sb.append((char) ch); } System.out.println(sb); rd.close(); </code></pre>

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