Hi Michael,
As Gustavo has said you need to read the response stream until it
returns -1. This indicates that all data has been read. You have two
options.
- buffer the content manually:
byte[] temp = new byte[1024];
int length = 0;
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
InputStream is = get.getResponseBodyAsStream();
while ((length = is.read(temp)) != -1) {
buffer.write(temp, 0, length);
}
ImageIcon icon = new ImageIcon(buffer.toByteArray());
- or:
ImageIcon icon = new ImageIcon(get.getResponseBody());
Mike
On 7/14/05, Michael Schwager <[EMAIL PROTECTED]> wrote:
> Hi,
> Java: 1.4.2 HttpClient: 3.0 rc3
> If I want to display a PNG file as an ImageIcon, it appears I need to
> do this with HttpClient:
>
> HostConfiguration host = client.getHostConfiguration();
> host.setHost(new URI("http://www.example.com";, true));
> GetMethod method=new GetMethod("/Images/image_file.png");
> //notice this code here. It seems to be useless to me...
> method.getResponseBodyAsString();
> //here's what I really want...
> InputStream IS=method.getResponseBodyAsStream();
> BufferedInputStream BIS=new BufferedInputStream(IS);
> returnCode=BIS.read(inputBytes);
>
> icon=new ImageIcon(inputBytes);
>
> If I don't put in the getResponseBodyAsString(); I will get a
> PNGImageDecoder exception.
>
> Any ideas?
>
> My full source code follows. Thanks.
> -Mike Schwager
>
> <code>
> import java.awt.Container;
> import java.awt.Dimension;
> import java.io.*;
> import java.io.ByteArrayInputStream;
> import org.apache.commons.httpclient.*;
> import org.apache.commons.httpclient.auth.*;
> //import org.apache.commons.httpclient.auth.AuthScope;
> import org.apache.commons.httpclient.methods.*;
> import javax.swing.*;
>
> public class Http extends JFrame {
>
> final int MAXBYTES=100000;
> /**
> *
> */
> public Http() {
> super();
> ImageIcon icon=null;
> byte[] inputBytes=new byte[MAXBYTES];
> byte[] secondaryBuffer=new byte[10];
> byte[] pngBytes;
> HttpClient client = new HttpClient();
> //ByteArrayInputStream inputS=new
> ByteArrayInputStream(inputBuffer);
>
> HostConfiguration host = client.getHostConfiguration();
> GetMethod method=new GetMethod("/1.4/Images/image_file.png");
> try {
> host.setHost(new URI("http://www.example.com";, true));
>
> HttpState state=client.getState();
>
> Credentials credentials=new
> UsernamePasswordCredentials("ms07767", "guest");
> AuthScope authScope=new AuthScope(host.getHost(),
> host.getPort());
>
> state.setCredentials(authScope, credentials);
>
> int returnCode=client.executeMethod(method);
> System.err.println("Return code: " + returnCode + "
> bad status
> code: " + HttpStatus.SC_UNAUTHORIZED);
> System.out.println(method.getStatusLine());
>
> // THE ICON WILL ONLY WORK IF I RUN THIS METHOD.
> // OTHERWISE, IT WILL ERROR OUT WITH
> // a PNGImageDecoder exception: crc corruption
> method.getResponseBodyAsString();
>
> InputStream IS=method.getResponseBodyAsStream();
> BufferedInputStream BIS=new BufferedInputStream(IS);
> returnCode=BIS.read(inputBytes);
>
> icon=new ImageIcon(inputBytes);
> } catch (Exception e) {
> System.out.println(e);
> } finally {
> method.releaseConnection();
> }
> Container cp=getContentPane();
> JDesktopPane dtp=new JDesktopPane();
> JButton button=new JButton(icon);
> cp.add(button);
> //dtp.add(button);
> setVisible(true);
> pack();
> show();
> //dtp.setPreferredSize(new Dimension(680,480));
> }
>
>
> public static void main(String[] args) {
> Http http=new Http();
> }
> }
> </code>
>
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