Hente data fra en hjemmeside

Hejsa

Jeg så lige dette link: http://www.eksperten.dk/spm/437468, og ville prøve at lave den kode, så det gjorde jeg:


import java.net.*;
import java.io.*;

/**
*  Description of the Class
*
*@author    ostehamster
*@created    12. december 2003
*/
public class henturl {

    /**
    *  Constructor for the test object
    */
    public henturl() {
        URL url = new URL("http://www.food4u.dk");
        HttpURLConnection con = (HttpURLConnection) url.openConnection();
        con.setRequestMethod("POST");
        String info = "felt1=value1&felt2=value2";
        con.setDoOutput(true);
        con.getOutputStream().write(info.getBytes());
        con.connect();
        if (con.getResponseCode() == HttpURLConnection.HTTP_OK) {
            InputStream is = con.getInputStream();
            byte[] b = new byte[1000];
            int n;
            while ((n = is.read(b)) >= 0) {
                String line = new String(b, 0, n);
                // process line
            }
            is.close();
        }
        con.disconnect();
    }
}


Men hvad har jeg gjort forkert? Jeg får disse fejl:
[ostehamster@localhost koder]$ javac henturl.java
henturl.java:17: unreported exception java.net.MalformedURLException; must be caught or declared to be thrown
                URL url = new URL("http://www.food4u.dk");
                          ^
henturl.java:18: unreported exception java.io.IOException; must be caught or declared to be thrown
                HttpURLConnection con = (HttpURLConnection) url.openConnection();
                                                                              ^
henturl.java:19: unreported exception java.net.ProtocolException; must be caught or declared to be thrown
                con.setRequestMethod("POST");
                                    ^
henturl.java:22: unreported exception java.io.IOException; must be caught or declared to be thrown
                con.getOutputStream().write(info.getBytes());
                                  ^
henturl.java:22: unreported exception java.io.IOException; must be caught or declared to be thrown
                con.getOutputStream().write(info.getBytes());
                                          ^
henturl.java:23: unreported exception java.io.IOException; must be caught or declared to be thrown
                con.connect();
                          ^
henturl.java:24: unreported exception java.io.IOException; must be caught or declared to be thrown
                if (con.getResponseCode() == HttpURLConnection.HTTP_OK) {
                                      ^
henturl.java:25: unreported exception java.io.IOException; must be caught or declared to be thrown
                        InputStream is = con.getInputStream();
                                                          ^
henturl.java:28: unreported exception java.io.IOException; must be caught or declared to be thrown
                        while ((n = is.read(b)) >= 0) {
                                          ^
henturl.java:32: unreported exception java.io.IOException; must be caught or declared to be thrown
                        is.close();
                                ^
10 errors



mvh
Christoffer