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我需要在发送POST数据后从URL读取HTML响应。我已经有了以下两个功能,但我不知道如何组合它们,以便发送POST数据并获得响应。通过BlackBerry发送POST数据后获得HTML响应
该函数获得一个标准的HTML响应:
public static String getDataFromUrl(String url) throws IOException {
System.out.println("------------FULL URL = " + url + " ------------");
StringBuffer b = new StringBuffer();
InputStream is = null;
HttpConnection c = null;
long len = 0;
int ch = 0;
c = (HttpConnection) Connector.open(url);
is = c.openInputStream();
len = c.getLength();
if (len != -1) {
// Read exactly Content-Length bytes
for (int i = 0; i < len; i++)
if ((ch = is.read()) != -1) {
b.append((char) ch);
}
} else {
// Read until the connection is closed.
while ((ch = is.read()) != -1) {
len = is.available();
b.append((char) ch);
}
}
is.close();
c.close();
return b.toString();
}
这个功能发送POST数据到一个URL:
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();
}
}
所以,我需要知道如何把它们结合在一起,这样我可以得到响应后发送POST数据。
是(紧急!)我不知道的一些新技术?老实说,描述中的这些东西根本不会帮你。如果你想要紧急的帮助有一个专业的,你付出,站在旁边。 – rwilliams 2012-03-07 04:27:59
对不起,我很傻。这只是我忽略了我的程序中的这个问题,我需要找到一种方法来尽快解决它。 – Chro 2012-03-07 04:37:08