adminloginaction.java

使用J2EE Struts开发的房地产信息咨询系统

package building;

import javax.sql.*;
import javax.servlet.ServletContext;
import javax.servlet.http.*;

import org.apache.struts.action.*;

public final class AdminLoginAction extends Action
{
	public ActionForward execute(
			ActionMapping mapping,
			ActionForm form,
			HttpServletRequest request,
			HttpServletResponse response)
	throws Exception
	{
		DynaActionForm adminLoginForm = (DynaActionForm)form;
		
		String adminName = (String)adminLoginForm.get("username");
		String password = (String)adminLoginForm.get("password");
		
		adminName = CharSet.GBK_ISO(adminName);
		password = CharSet.GBK_ISO(password);
		
		//连接数据库
		ServletContext context = servlet.getServletContext();
		DataSource dataSource = (DataSource)context.getAttribute(Constants.DATASOURCE_KEY);
		DB db = new DB(dataSource);
		
		//Http Session会话
		HttpSession session = request.getSession(true);
				
		//页面跳转
		String PageForward = null;
		
		//错误信息提示页面
		ActionMessages errors = new ActionMessages();
		
		//验证用户的身份
		if (Admin.checkAdmin(db,adminName,password))
		{
			//身份确认成功
			PageForward = "toAdminMain";
			session.setAttribute(Constants.ADMIN_NAME_KEY,adminName);
			//确立用户信息
			Admin admin = Admin.getAdminInfo(db,adminName);
			session.setAttribute(Constants.ADMIN_INFO_KEY,admin);
		}//End of if
		else
		{
			//身份验证失败
			errors.add(ActionMessages.GLOBAL_MESSAGE,
					new ActionMessage("errors.AdminLoginFail"));
			if (!errors.isEmpty())
			{
				saveErrors(request,errors);
			}//End of if
			
			PageForward = "toWrong"; 
		}//End of else
		
//		关闭数据库连接
		db.close();
		
		//返回跳转页面
		return(mapping.findForward(PageForward));
	}//End of execuete
	
}//End of class AdminLoginAction