helper.java

我自己的MVC框架DWF的范例包。用实际的例子说明了如何使用我的DWF框架来开发网站。

package dark.web.frame.example.littleo;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import dark.web.frame.Message;
import dark.web.frame.Value;

/**
 * <p>Title:            帮助类</p>
 * <p>Description:      </p>
 * <p>Copyright:        Copyright (c) 2004</p>
 * <p>Company:          DIS</p>
 * <p>Create Time:      2004-12-19 0:24:47</p>
 * @author             <a href="mailto:[e-mail]">darkhe</a>
 * @version            1.0
 */
public class Helper
{
	public static Message loadMessage(HttpServletRequest request)
	{
		Message message =
			(Message) request.getAttribute(Definition.MESSAGE_KEY);

		if (message != null)
		{
			return message;
		}
		else
		{
			return new Message();
		}
	}

	public static Message loadMessage(HttpSession session)
	{
		Message message =
			(Message) session.getAttribute(Definition.MESSAGE_KEY);

		if (message != null)
		{
			return message;
		}
		else
		{
			return new Message();
		}
	}

	public static Value loadValue(HttpServletRequest request)
	{
		Value v = (Value) request.getAttribute(Definition.VALUE_KEY);

		if (v != null)
		{
			return v;
		}
		else
		{
			return new Value();
		}
	}

	public static Value loadValue(HttpSession session)
	{
		Value v = (Value) session.getAttribute(Definition.VALUE_KEY);

		if (v != null)
		{
			return v;
		}
		else
		{
			return new Value();
		}
	}
}