java中使用反射来执行方法并捕捉反射调用方法中抛出的错误

/**
 * @author jsczxy2
 */
public class TestCaseThread implements Runnable, Serializable {
	/**
	 * 
	 */
	private static final long serialVersionUID = -5528958657359499860L;

	Log log = LogFactory.getLog(getClass());

	private String className;

	public TestCaseThread(String className) {
		this.className = className;
	}

	@SuppressWarnings("unchecked")
	public void run() {
		try {
			Class c = Class.forName(className);
			Method method = c.getMethod("main", String[].class);
			SysDwr.testFlag.setCheck(false);
			method.invoke(null, (Object) new String[] {});
			SysDwr.testFlag.setCheck(true);
		} catch (Exception e) {
			SysDwr.testFlag.setCheck(true);
			SysDwr.testFlag.setErrorMsg(handleException(e));
		}
	}

	private String handleException(Exception e) {
		String msg = null;
		if (e instanceof InvocationTargetException) {
			Throwable targetEx = ((InvocationTargetException) e)
					.getTargetException();
			if (targetEx != null) {
				msg = targetEx.getMessage();
			}
		} else {
			msg = e.getMessage();
		}
		return msg;
	}

}

 handleException方法用来捕捉反射调用类报出的错误，与一般直接取方法的错误是不一样的，反射类调用方法中抛出的Exception会以InvocationTargetException抛出到上层业务中，必须单独处理。