String strDir = System.getProperty("user.dir"); //获取项目所在目录的绝对路径
strDir = strDir.replace('//',File.separatorChar); //将目录分隔符号换掉
if (taskName == null || taskName.length() <= 0 || initClass == null) {
}
try {
//不同的包内Class.forName的路径不同
URL[] us = {new URL("file:" + strDir + File.pathSeparator+ jarPath)}; //jarPath为jar包名和后缀
ClassLoader loader = new URLClassLoader(us);
Class c = loader.loadClass(initClass);
// Class c = Class.forName(initClass);
TaskBase task = (TaskBase) c.newInstance();
} catch (Exception e) {
e.printStackTrace();
}