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();
}
}