一开始,它一切正常,然后它就停止了,我真的不知道我是否对它做了什么,或者其他地方有问题。
我的类加载器应该在运行时加载一个 jar 文件,但显然它没有。
String url = "https://" + serverHost + "/" + getJarPath() + "se.jar";
log.info("http url is: " +url);
String https = url.replaceAll("\\s","");
URL httpsURL = new URL(https);
log.info("https url is: " + httpsURL);
URLConnection con = httpsURL.openConnection();
addURL(con.getURL());
private void addURL(URL https) throws IOException {
Class<?>[] parameters = new Class[]{URL.class};
// IMPORTANT: MUST use the webapp classloader - so derived extension classes can resolve their base classes
ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
// cast to a URL class loader so we can add additional JAR(s) to the search path
URLClassLoader webappClassLoader = (URLClassLoader)contextClassLoader;
Class<?> sysclass = URLClassLoader.class;
Method method;
try {
method = sysclass.getDeclaredMethod("addURL", parameters);
method.setAccessible(true);
method.invoke(webappClassLoader, new Object[]{ https });
} catch (NoSuchMethodException | SecurityException e) {
log.log(Level.WARNING, "FATAL Exception", e);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
log.log(Level.WARNING, "FATAL Exception", e);
}
}
我不能透露 URL 的完整路径,但我可以确认 101% jar 是字符串 url 所说的位置,但我确实得到了 DefNotFoundClassException。