loginaction.java

主要实现的是用户注册

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

import java.sql.ResultSet;

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;

import com.hh.db.DBConnection;
import com.hh.struts.form.LoginForm;



/** 
 * MyEclipse Struts
 * Creation date: 04-07-2008
 * 
 * XDoclet definition:
 * @struts.action
 * @struts.action-forward name="false" path="/false.jsp"
 * @struts.action-forward name="success" path="/success.jsp"
 */
public class LoginAction 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)throws Exception {
		// TODO Auto-generated method stub
		DBConnection db=DBConnection.getInstance();
		LoginForm lf=(LoginForm)form;
		String username=lf.getUsername();
		String password=lf.getPassword();
		String sqlRead="select * from mylogin";
		HttpSession hs=request.getSession();
		if(hs.getAttribute("cuser")==null)
		{
			hs.setAttribute("cuser", username);
		}else
		{
			hs.removeAttribute("cuser");
			hs.setAttribute("cuser", username);
		}
		
		ResultSet rs=db.myread(sqlRead);
		if(rs!=null && rs.next()&& username.equalsIgnoreCase(rs.getString("username"))&&password.equalsIgnoreCase(rs.getString("password")))
		{
			return mapping.findForward("LoginSuccess");
		}
		else
		{
			return mapping.findForward("LoginFalse");
		}
		
	}
}