用J2ME的通用联网框架开发联网应用程序

void postViaHttpConnection(String url) throws IOException {
　HttpConnection c = null;
　InputStream is = null;
　OutputStream os = null;
　int rc;

　try {
　　c = (HttpConnection)Connector.open(url);

　　// Set the request method and headers
　　c.setRequestMethod(HttpConnection.POST);
　　c.setRequestProperty("If-Modified-Since","29 Oct 1999 19:43:31 GMT");
　　c.setRequestProperty("User-Agent","Profile/MIDP-2.0 Configuration/CLDC-1.0");
　　c.setRequestProperty("Content-Language", "en-US");

　　// Getting the output stream may flush the headers
　　os = c.openOutputStream();
　　os.write("LIST games\n".getBytes());
　　os.flush(); // Optional, getResponseCode will flush

　　// Getting the response code will open the connection,
　　// send the request, and read the HTTP response headers.
　　// The headers are stored until requested.
　　rc = c.getResponseCode();
　　if (rc != HttpConnection.HTTP_OK) {
　　　throw new IOException("HTTP response code: " + rc);
　　}

　　is = c.openInputStream();

　　// Get the ContentType
　　String type = c.getType();
　　processType(type);

　　// Get the length and process the data
　　int len = (int)c.getLength();
　　if (len > 0) {
　　　int actual = 0;
　　　int bytesread = 0 ;
　　　byte[] data = new byte[len];
　　　while ((bytesread != len) && (actual != -1)) {
　　　　actual = is.read(data, bytesread, len - bytesread);
　　　　bytesread += actual;
　　　}
　　　process(data);
　　　} else {
　　　　int ch;
　　　　while ((ch = is.read()) != -1) {
　　　　　process((byte)ch);
　　　　}
　　　}
　　} catch (ClassCastException e) {
　　　throw new IllegalArgumentException("Not an HTTP URL");
　　} finally {
　　　if (is != null)
　　　　is.close();
　　　if (os != null)
　　　　os.close();
　　　if (c != null)
　　　　c.close();
　　}
}