figured it out ! so for the benefit of anybody searching for this
problem in the future, here you go:
try {
java.net.URL url = new URL(input);
java.net.URLConnection urlConn = url.openConnection();
urlConn.getContent();
int c;
StringBuilder sb = new StringBuilder();
InputStream stream = urlConn.getInputStream();
int i = urlConn.getContentLength();
while (((c=stream.read())!=-1)){// && (--i > 0){
System.out.print((char)c);
sb.append((char)c);
}
stream.close();
return sb.toString();
}
catch (java.io.IOException ioe)
{
ioe.printStackTrace();
}
return null;
On Mar 16, 9:09 pm, vegbenz <[email protected]> wrote:
> So I discovered that I need to add any extra libraries into /war/WEB-
> INF/lib -- added apache httpclient, apache logging, and apache codec
> jars.
>
> Now I get this error ---
>
> java.net.Socket is a restricted class. Please see the Google App
> Engine developer's guide
>
> But the gwt docs seem to suggest i can use anything i want on the
> server side:
>
> "Tip: Although GWT translates Java into JavaScript for client-side
> code, GWT does not meddle with your ability to run Java bytecode on
> your server whatsoever. Server-side code doesn't need to be
> translatable, so you're free to use any Java library you find useful."
>
> Well this one would be useful... any ideas why it is a restricted
> class? and what that means?
>
> Anecdotally i saw that I should be able to use URLConnection? I guess
> I'll try that.
>
> Thanks!
>
> On Mar 16, 11:43 am, vegbenz <[email protected]> wrote:
>
> > Hi, when i run the code below as standalone pojo, it works fine, but
> > in my "GreetingServiceImpl" on server it returns 500 error;
>
> > ** please note i DO want to do this from the server. i saw the
> > tutorial about adding script tags to accomplish this from the client.
> > I need to do the fetch from the server side for other reasons.
> > thanks!
>
> > import java.io.IOException;
>
> > import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
> > import org.apache.commons.httpclient.HttpClient;
> > import org.apache.commons.httpclient.HttpException;
> > import org.apache.commons.httpclient.HttpStatus;
> > import org.apache.commons.httpclient.methods.GetMethod;
> > import org.apache.commons.httpclient.params.HttpMethodParams;
>
> > public class TestRemoteCall {
>
> > public static void main(String args[]) {
>
> > HttpClient client = new HttpClient();
>
> > GetMethod method = new
> > GetMethod("http://waterdata.usgs.gov/tx/nwis/
> > current/?
> > type=flow&group_key=basin_cd&search_site_no_station_nm=barton");
>
> > // Provide custom retry handler is necessary
> >
> > method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new
> > DefaultHttpMethodRetryHandler(3, false));
>
> > try {
> > // Execute the method.
> > int statusCode = client.executeMethod(method);
>
> > if (statusCode != HttpStatus.SC_OK) {
> > System.err.println("Method failed: " +
> > method.getStatusLine());
> > }
>
> > // Read the response body.
> > byte[] responseBody = method.getResponseBody();
>
> > // Deal with the response.
> > // Use caution: ensure correct character encoding
> > and is not binary
> > data
> > // System.out.println(new
> > String(responseBody));
> > System.out.println(new String(responseBody));
>
> > } catch (HttpException he) {
> > System.err.println("Fatal protocol violation: " +
> > he.getMessage());
> > he.printStackTrace();
> > } catch (IOException e) {
> > System.err.println("Fatal transport error: " +
> > e.getMessage());
> > e.printStackTrace();
> > } finally {
> > // Release the connection.
> > method.releaseConnection();
> > }
> > }
>
> > }
>
> > HERE is the error message
>
> > import java.io.IOException;
>
> > import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
> > import org.apache.commons.httpclient.HttpClient;
> > import org.apache.commons.httpclient.HttpException;
> > import org.apache.commons.httpclient.HttpStatus;
> > import org.apache.commons.httpclient.methods.GetMethod;
> > import org.apache.commons.httpclient.params.HttpMethodParams;
>
> > public class TestRemoteCall {
>
> > public static void main(String args[]) {
>
> > HttpClient client = new HttpClient();
>
> > GetMethod method = new
> > GetMethod("http://waterdata.usgs.gov/tx/nwis/
> > current/?
> > type=flow&group_key=basin_cd&search_site_no_station_nm=barton");
>
> > // Provide custom retry handler is necessary
> >
> > method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new
> > DefaultHttpMethodRetryHandler(3, false));
>
> > try {
> > // Execute the method.
> > int statusCode = client.executeMethod(method);
>
> > if (statusCode != HttpStatus.SC_OK) {
> > System.err.println("Method failed: " +
> > method.getStatusLine());
> > }
>
> > // Read the response body.
> > byte[] responseBody = method.getResponseBody();
>
> > // Deal with the response.
> > // Use caution: ensure correct character encoding
> > and is not binary
> > data
> > // System.out.println(new
> > String(responseBody));
> > System.out.println(new String(responseBody));
>
> > } catch (HttpException he) {
> > System.err.println("Fatal protocol violation: " +
> > he.getMessage());
> > he.printStackTrace();
> > } catch (IOException e) {
> > System.err.println("Fatal transport error: " +
> > e.getMessage());
> > e.printStackTrace();
> > } finally {
> > // Release the connection.
> > method.releaseConnection();
> > }
> > }
>
> > }
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