我有 2 个 jsf 页面和 2 个 bean。第一个页面是登录页面,用户输入他的登录密码,然后他重定向到他的邮箱页面。我想从登录页面获取数据到邮箱页面。
我用于登录页面的 bean:
@ManagedBean(name = "login")
@ConcurrencyManagement(ConcurrencyManagementType.CONTAINER)
@RequestScoped
public class LoginFormBean {
@EJB
private LoginService loginService;
private String email;
private String password;
public String getEmail() {
return email;
}
public String getPassword() {
return password;
}
public void setEmail(String email) {
this.email = email;
}
public void setPassword(String password) {
this.password = password;
}
public String login() {
if (loginService.loginUser(email, password))
return "mailBox.xhtml?faces-redirect=true";
else return "";
}
}
我的邮箱页面 bean:
@ManagedBean(name = "mailBox")
@ConcurrencyManagement(ConcurrencyManagementType.CONTAINER)
@RequestScoped
public class MailBoxFormBean {
@ManagedProperty(value = "#{login}")
private LoginFormBean login;
private String email = login.getEmail();
public void setLogin(LoginFormBean login) {
this.login = login;
}
public void setEmail(String email) {
this.email = email;
}
public String getEmail() {
return email;
}
}
但是当我重定向到邮箱页面时,登录 bean 为空,我无法从中获取数据。我做错了什么?
我看过很多教程和答案(例如, Using @ManagedProperty to call method between Managed beans or http://www.techartifact.com/blogs/2013/01/access-one-managed-bean-from-另一个-in-jsf-2-0.html )
我做的完全一样,但它对我不起作用。