newsallinfoaction.java

来自「使用J2EE Struts开发的房地产信息咨询系统」· Java 代码 · 共 65 行

/**
 * 查看所有News信息
 * NewsAllInfoAction.java
 * @author usr
 */

package building;

import java.sql.*;
import java.util.Vector;

import javax.sql.*;
import javax.servlet.http.*;
import javax.servlet.ServletContext;
import org.apache.struts.action.*;

public final class NewsAllInfoAction extends Action
{
	public ActionForward execute(
			ActionMapping mapping,
			ActionForm form,
			HttpServletRequest request,
			HttpServletResponse response
			)
	throws Exception
	{
		HttpSession session = request.getSession();
		Admin thisAdmin = (Admin)session.getAttribute(Constants.ADMIN_INFO_KEY);
		
		//
		ServletContext context = servlet.getServletContext();
		DataSource dataSource = (DataSource)context.getAttribute(Constants.DATASOURCE_KEY);
		DB db = new DB(dataSource);
		//
		String PageForward = null;
		ActionMessages errors = new ActionMessages();
		
		if ( thisAdmin.getLev() != 1 )
		{
			//此用户无权限查看所有管理员的资料
			errors.add(ActionMessages.GLOBAL_MESSAGE,
					new ActionMessage("errors.adminNoRight2ADD"));
			if (!errors.isEmpty())
			{
				saveErrors(request,errors);
			}//End of if
			
			PageForward = "toWrong";
		}//End of if
		else
		{
			//此用户拥有权限查看所有管理员的资料
			Vector newsList = News.getAllNews(db);
			session.setAttribute(Constants.NEWS_ALLINFO_KEY,newsList);
			PageForward = "toNewsAllInfo";
		}//End of else
		
		//
		db.close();
		
		return(mapping.findForward(PageForward));
	}//End of execute
	
}//End of class NewsAllInfoAction