JarFile get(URL url, boolean useCaches) throws IOException {
JarFile result = null;
JarFile local_result = null;
if (useCaches) {
synchronized (this) {
result = getCachedJarFile(url);
}
if (result == null) {
local_result = URLJarFile.getJarFile(url);
synchronized (this) {
result = getCachedJarFile(url);
if (result == null) {
fileCache.put(url, local_result);
urlCache.put(local_result, url);
result = local_result;
} else {
if (local_result != null) {
local_result.close();
}
}
}
}
} else {
result = URLJarFile.getJarFile(url);
}
if (result == null) throw new FileNotFoundException(url.toString());
return result;
}
public AppFrame() {
super();
GlobalData.oFrame = this;
this.setSize(this.width, this.height);
this.toolkit = Toolkit.getDefaultToolkit();
Dimension w = toolkit.getScreenSize();
int fx = (int) w.getWidth();
int fy = (int) w.getHeight();
int wx = (fx - this.width) / 2;
int wy = (fy - this.getHeight()) / 2;
setLocation(wx, wy);
this.tracker = new MediaTracker(this);
String sHost = "";
try {
localAddr = InetAddress.getLocalHost();
if (localAddr.isLoopbackAddress()) {
localAddr = LinuxInetAddress.getLocalHost();
}
sHost = localAddr.getHostAddress();
} catch (UnknownHostException ex) {
sHost = "你的IP地址错误";
}
//
this.textLines[0] = "服务器正在运行.";
this.textLines[1] = "";
this.textLines[2] = "你的IP地址: " + sHost;
this.textLines[3] = "";
this.textLines[4] = "请打开你的手机客户端";
this.textLines[5] = "";
this.textLines[6] = "输入屏幕上显示的IP地址.";
//
try {
URL fileURL = this.getClass().getProtectionDomain().getCodeSource().getLocation();
String sBase = fileURL.toString();
if ("jar".equals(sBase.substring(sBase.length() - 3, sBase.length()))) {
jar = new JarFile(new File(fileURL.toURI()));
} else {
basePath = System.getProperty("user.dir") + "\\res\\";
}
} catch (Exception ex) {
this.textLines[1] = "exception: " + ex.toString();
}
}
private static String[] findStandardMBeans(URL codeBase) throws Exception {
Set<String> names;
if (codeBase.getProtocol().equalsIgnoreCase("file") && codeBase.toString().endsWith("/"))
names = findStandardMBeansFromDir(codeBase);
else names = findStandardMBeansFromJar(codeBase);
Set<String> standardMBeanNames = new TreeSet<String>();
for (String name : names) {
if (name.endsWith("MBean")) {
String prefix = name.substring(0, name.length() - 5);
if (names.contains(prefix)) standardMBeanNames.add(prefix);
}
}
return standardMBeanNames.toArray(new String[0]);
}
private static Set<String> findStandardMBeansFromDir(URL codeBase) throws Exception {
File dir = new File(new URI(codeBase.toString()));
Set<String> names = new TreeSet<String>();
scanDir(dir, "", names);
return names;
}
