loginaction.java

struts学习时的入门好例子（简单登陆例子）能帮助你更好的学习

package com.bjsxt.struts;

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

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

public class LoginAction extends Action {

	
    public ActionForward execute(
            ActionMapping mapping,
            ActionForm form,
            HttpServletRequest request,
            HttpServletResponse response)
            throws Exception {
    		LoginActionForm lag = (LoginActionForm)form;
    		String username = lag.getUsername();
    		String password = lag.getPassword();
//    		if ("admin".equals(username) && "admin".equals(password)) {
//    			//转到成功页面
//    			return mapping.findForward("success");
//    		}else {
//    			//转到失败页面 
//    			return mapping.findForward("error");
//    		}
    		try {
    			//调用助手类进行合法性检查
    			UserHelper.validate(username, password);
    			return mapping.findForward("success");
    		}catch(UserNotFoundException unfe) {
    			unfe.printStackTrace();
    		}catch(PasswordErrorException pee) {
    			pee.printStackTrace();
    		}
    		return mapping.findForward("error");
        }
}