pageaction.java

1 系统简介 1.1 系统名称：bugtrail 1.2 适用范围：大型或小型公司 1.3 用途：在项目周期内进行项目管理

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package bugtrail.action;

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

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/** 
 * 该模块的功能是实现project user bug公用一个action实现分页显示，
 * 每次显示的页码可在pageInfo.inc里设置，将当前页码存在session里是为了用户
 * 下次进入列表时接着上次的位置察看，而不用从头看起
 */
public class PageAction extends Action {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		String method = request.getParameter("method");
		HttpSession session = request.getSession();
		Integer currentPage = null;
		Integer totalPage = (Integer) session.getAttribute("totalPage");
		String position = (String)session.getAttribute("position");
		
		if(position.equals("project")){
			currentPage = (Integer) session.getAttribute("projectPageNum");
			if(method.equals("nextPage")){
				if(currentPage<totalPage)
					session.setAttribute("projectPageNum", new Integer(currentPage+1));
				else
					session.setAttribute("projectPageNum", new Integer(currentPage));
			}
			else if(method.equals("backPage")){
				if(currentPage>1)
					session.setAttribute("projectPageNum", new Integer(currentPage-1));
				else
					session.setAttribute("projectPageNum", new Integer(1));
			}
			else if(method.equals("firstPage")){
				session.setAttribute("projectPageNum", new Integer(1));
			}
			else if(method.equals("lastPage")){
				session.setAttribute("projectPageNum", new Integer(totalPage));
			}
			return mapping.findForward("viewProjcet");
		}
		else if(position.equals("user")){
			currentPage = (Integer) session.getAttribute("userPageNum");
			if(method.equals("nextPage")){
				if(currentPage<totalPage)
					session.setAttribute("userPageNum", new Integer(currentPage+1));
				else
					session.setAttribute("userPageNum", new Integer(currentPage));
			}
			else if(method.equals("backPage")){
				if(currentPage>1)
					session.setAttribute("userPageNum", new Integer(currentPage-1));
				else
					session.setAttribute("userPageNum", new Integer(1));
			}
			else if(method.equals("firstPage")){
				session.setAttribute("userPageNum", new Integer(1));
			}
			else if(method.equals("lastPage")){
				session.setAttribute("userPageNum", new Integer(totalPage));
			}
			return mapping.findForward("viewUser");
		}
		else if(position.equals("bug")){
			currentPage = (Integer) session.getAttribute("bugPageNum");
			if(method.equals("nextPage")){
				if(currentPage<totalPage)
					session.setAttribute("bugPageNum", new Integer(currentPage+1));
				else
					session.setAttribute("bugPageNum", new Integer(currentPage));
			}
			else if(method.equals("backPage")){
				if(currentPage>1)
					session.setAttribute("bugPageNum", new Integer(currentPage-1));
				else
					session.setAttribute("bugPageNum", new Integer(1));
			}
			else if(method.equals("firstPage")){
				session.setAttribute("bugPageNum", new Integer(1));
			}
			else if(method.equals("lastPage")){
				session.setAttribute("bugPageNum", new Integer(totalPage));
			}
			return mapping.findForward("viewBug");
		}
		return null;
	}
}