大家好，我是一名新手，向各位请教有关struts中登陆成功或失败跳转问题：
login.jsp代码如下：
<%@ page language="java" pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
<html>
<head>
<title>JSP for LoginForm form</title>
</head>
<body>
<html:form action="/login.do">
username : <html:text property="username"/><html:errors property="username"/><br/>
password : <html:password property="password"/><html:errors property="password"/><br/>
<html:submit/><html:cancel/>
</html:form>
</body>
</html>
LoginForm.java代码如下:
package house.struts.form;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.validator.ValidatorForm;
import org.apache.struts.action.ActionMessage;
public class LoginForm extends ValidatorForm {
private String password;
private String username;
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) {
ActionErrors errors=new ActionErrors();
if(this.getUsername()==null||this.getUsername().length()<1){
errors.add("nameerr", new ActionMessage("err.user.login.namenullerr"));
}
if(this.getPassword()==null||this.getPassword().length()<1){
errors.add("passworderr", new ActionMessage("err.user.login.passwordnullerr"));
}
return errors;
}
public void reset(ActionMapping mapping, HttpServletRequest request) {
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
}
LoginAction.java代码如下:
package house.struts.action;
import house.struts.form.LoginForm;
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;
import bean.UserBean;
import bean.DataBean;
public class LoginAction extends Action {
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub
UserBean ub=new UserBean();
DataBean db=new DataBean();
ub.setUsername(loginForm.getUsername());
ub.setPassword(loginForm.getPassword());
if(db.checkUserLogin(ub)){
request.getSession().setAttribute("userbean", db.getUserBean(ub));
return mapping.findForward("success");
}
db.Close();
return mapping.findForward("failed");
}
}
另外定义了两个BEAN，分别为UserBean和DataBean
UserBean代码如下:
package bean;
public class UserBean{
private String username;
private String password;
public String getUsername(){
return username;
}
public void setUsername(String username){
this.username=username;
}
public String getPassword(){