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POMaking java application into java applet then loading in html
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copied!<p>I had/have a java application which is loading a game, and i tried to make it into an applet and loading into a html webpage, but when i try and load it i get and error and it doesn't load, could someone please help me and tell me what i am doing wrong?</p> <p>Java application code:</p> <pre><code>import java.applet.*; import java.awt.Dimension; import java.io.*; import java.net.*; import java.util.HashMap; import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; import javax.swing.*; public class OSRSLoader implements AppletStub { static JMenuBar menubar; static JFrame i; public static void main(String args[]) throws Exception { new OSRSLoader(); } public OSRSLoader() throws Exception, FileNotFoundException { JFrame i = new JFrame("RS Oldschool Client Beta V1:00"); i.setSize(new Dimension(763, 514)); i.setPreferredSize(new Dimension(763, 514)); JLabel label = new JLabel(); ImageIcon icon = new ImageIcon(new URL("http://www.runescape.com/image/rsp777/oldschool_ani.gif")); icon.setImageObserver(null); label.setIcon(icon); i.add(label); i.pack(); i.setVisible(true); String str = getPageSource(new URL("http://oldschool38.runescape.com")); Pattern pattern = Pattern.compile("gamep\\w+"); Matcher match = pattern.matcher(str); if(match.find()) { OSRSLoader stub = new OSRSLoader(Pattern.compile("<param name=\"([^\\s]+)\"\\s+value=\"([^>]*)\">"), str); Download("http://oldschool38.runescape.com/", (new StringBuilder(String.valueOf(match.group(0)))).append(".jar").toString()); stub.setCodeBase(new URL((new StringBuilder("http://oldschool38.runescape.com/")).append(match.group(0)).append(".jar").toString())); stub.setDocumentBase(new URL((new StringBuilder("http://oldschool38.runescape.com/")).append(match.group(0)).append(".jar").toString())); stub.getParameter((String)parameters.get("java_arguments")); URLClassLoader classLoader = new URLClassLoader(new URL[] { new URL("file:gamepack.jar") }); Applet applet = (Applet)classLoader.loadClass("client").newInstance(); applet.setStub(stub); applet.setSize(new Dimension(763, 514)); applet.init(); applet.start(); i.add(applet); i.pack(); i.setDefaultCloseOperation(3); label.setVisible(false); } } public OSRSLoader(Pattern parameterPattern, String frameSource) { String key; String value; for(Matcher param = parameterPattern.matcher(frameSource); param.find(); System.out.println((new StringBuilder("Parameter Loaded. Key = ")).append(key).append(", value =").append(value).toString())) { key = param.group(1); value = param.group(2); parameters.put(key, value); } } private String getPageSource(URL url) throws IOException, InterruptedException { URLConnection cn = url.openConnection(); cn.addRequestProperty("Accept", "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5"); cn.addRequestProperty("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); cn.addRequestProperty("Accept-Encoding", "gzip,deflate"); cn.addRequestProperty("Accept-Language", "en-gb,en;q=0.5"); cn.addRequestProperty("Connection", "keep-alive"); cn.addRequestProperty("Host", "www.runescape.com"); cn.addRequestProperty("Keep-Alive", "300"); cn.addRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:9.0.1) Gecko/20100101 Firefox/9.01"); DataInputStream di = new DataInputStream(cn.getInputStream()); byte tmp[] = new byte[cn.getContentLength()]; di.readFully(tmp); di.close(); Thread.sleep(250 + (int)Math.random() * 500); return new String(tmp); } public void appletResize(int i, int j) { } public void setCodeBase(URL codeBase) { this.codeBase = codeBase; } public void setDocumentBase(URL documentBase) { this.documentBase = documentBase; } public AppletContext getAppletContext() { return null; } public URL getCodeBase() { return codeBase; } public URL getDocumentBase() { return documentBase; } public String getParameter(String name) { return (String)parameters.get(name); } public boolean isActive() { return false; } public static void Download(String world, String archive) throws Exception { URLConnection jarConnection = (new URL((new StringBuilder(String.valueOf(world))).append(archive).toString())).openConnection(); FileOutputStream out = new FileOutputStream("./gamepack.jar"); InputStream input = jarConnection.getInputStream(); byte info[] = new byte[1024]; int ln; while((ln = input.read(info)) != -1) out.write(info, 0, ln); } private static Map parameters = new HashMap(); private URL codeBase; private URL documentBase; } </code></pre> <p>Java applet code:</p> <pre><code>import java.applet.*; import java.awt.*; import java.io.DataInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.net.URLClassLoader; import java.net.URLConnection; import java.util.HashMap; import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; public class Main extends Applet implements AppletStub { public void init() { } public void run() throws FileNotFoundException, Exception { new Main(); } public Main() throws Exception, FileNotFoundException { String str = getPageSource(new URL("http://oldschool38.runescape.com")); Pattern pattern = Pattern.compile("gamep\\w+"); Matcher match = pattern.matcher(str); if(match.find()) { Main stub = new Main(Pattern.compile("<param name=\"([^\\s]+)\"\\s+value=\"([^>]*)\">"), str); Download("http://oldschool38.runescape.com/", (new StringBuilder(String.valueOf(match.group(0)))).append(".jar").toString()); stub.setCodeBase(new URL((new StringBuilder("http://oldschool38.runescape.com/")).append(match.group(0)).append(".jar").toString())); stub.setDocumentBase(new URL((new StringBuilder("http://oldschool38.runescape.com/")).append(match.group(0)).append(".jar").toString())); stub.getParameter((String)parameters.get("java_arguments")); URLClassLoader classLoader = new URLClassLoader(new URL[] { new URL("file:gamepack.jar") }); Applet applet = (Applet)classLoader.loadClass("client").newInstance(); applet.setStub(stub); applet.setPreferredSize(new Dimension(765, 503)); applet.setSize(new Dimension(765, 503)); applet.init(); applet.start(); } } public Main(Pattern parameterPattern, String frameSource) { String key; String value; for(Matcher param = parameterPattern.matcher(frameSource); param.find(); System.out.println((new StringBuilder("Parameter Loaded. Key = ")).append(key).append(", value =").append(value).toString())) { key = param.group(1); value = param.group(2); parameters.put(key, value); } } private String getPageSource(URL url) throws IOException, InterruptedException { URLConnection cn = url.openConnection(); cn.addRequestProperty("Accept", "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5"); cn.addRequestProperty("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); cn.addRequestProperty("Accept-Encoding", "gzip,deflate"); cn.addRequestProperty("Accept-Language", "en-gb,en;q=0.5"); cn.addRequestProperty("Connection", "keep-alive"); cn.addRequestProperty("Host", "www.runescape.com"); cn.addRequestProperty("Keep-Alive", "300"); cn.addRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:9.0.1) Gecko/20100101 Firefox/9.01"); DataInputStream di = new DataInputStream(cn.getInputStream()); byte tmp[] = new byte[cn.getContentLength()]; di.readFully(tmp); di.close(); Thread.sleep(250 + (int)Math.random() * 500); return new String(tmp); } public void appletResize(int i, int j) { } public void setCodeBase(URL codeBase) { this.codeBase = codeBase; } public void setDocumentBase(URL documentBase) { this.documentBase = documentBase; } public AppletContext getAppletContext() { return null; } public URL getCodeBase() { return codeBase; } public URL getDocumentBase() { return documentBase; } public String getParameter(String name) { return (String)parameters.get(name); } public boolean isActive() { return false; } public static void Download(String world, String archive) throws Exception { URLConnection jarConnection = (new URL((new StringBuilder(String.valueOf(world))).append(archive).toString())).openConnection(); FileOutputStream out = new FileOutputStream("./gamepack.jar"); InputStream input = jarConnection.getInputStream(); byte info[] = new byte[1024]; int ln; while((ln = input.read(info)) != -1) out.write(info, 0, ln); } private static Map parameters = new HashMap(); private URL codeBase; private URL documentBase; } </code></pre> <p>The error when i try and load it in html is: <code>java.lang.reflect.invocationtargetexception</code> i click details and it sais: </p> <pre><code>Java Plug-in 10.25.2.17 Using JRE version 1.7.0_25-b17 Java HotSpot(TM) Client VM User home directory = C:\Users\Will ---------------------------------------------------- c: clear console window f: finalize objects on finalization queue g: garbage collect h: display this help message l: dump classloader list m: print memory usage o: trigger logging q: hide console r: reload policy configuration s: dump system and deployment properties t: dump thread list v: dump thread stack x: clear classloader cache 0-5: set trace level to <n> ---------------------------------------------------- </code></pre>

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