我正在学习如何使用Shiro编写JSF应用程序，但遇到了我所做的登录页面的某些问题。在调试模式下，它似乎在我通过HTML命令按钮调用它之前调用bean方法。该方法也未在构造函数中调用。关于发生了什么，我有点遗憾。
package bean;
import javax.faces.*;
import javax.faces.application.FacesMessage;
import javax.faces.bean.*;
import javax.faces.context.FacesContext;
import models.User;
import java.io.*;
import javax.annotation.*;
import org.apache.shiro.*;
import org.apache.shiro.authc.*;
import org.apache.shiro.web.*;
import org.apache.shiro.web.util.*;
import org.primefaces.context.RequestContext;
import javax.persistence.*;
@ManagedBean(name = "loginBacking")
@RequestScoped
public class Login {
private User user = new User();
private String username;
private String password;
private boolean remember;
@ManagedProperty("#{request.requestURL}")
private String url;
@PersistenceContext(unitName = "Builder")
private EntityManager em;
public Login()
{
System.out.print("create bean");
}
// getters and setters
public String userlogin() throws IOException {
try{
System.out.print("trying");
SecurityUtils.getSubject().login(new UsernamePasswordToken(username, password, remember));
Query query = em.createNamedQuery("user.finduser");
query.setParameter("username", username);
user = (User) query.getSingleResult();
return "/builder/builder.xhtml";
}
catch (AuthenticationException e) {
FacesContext.getCurrentInstance().addMessage(username,
new FacesMessage(FacesMessage.SEVERITY_ERROR, "Bad username or password", null));
e.printStackTrace(); // TODO: logger.
}
return "failed.xhtml";
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHMTL 1.0 Transicational//EN" "http//www.w3.org/TR/xhmtl1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<h:head/>
<h:body>
<h2>Login</h2>
<h:form>
<p:panelGrid columns="3">
<h:outputLabel for="username" value="Username:" />
<h:inputText id="username" required="true" value="#{loginBacking.username}" />
<h:message for="username" />
<h:outputLabel for="password" value="Password" />
<h:inputSecret id="password" required="true" value="#{loginBacking.password}"/>
<h:message for="password" />
<h:outputLabel for="rememberMe" value="Remember Me" />
<h:selectBooleanCheckbox id="rememberMe" value="#{loginBacking.remember}"/>
<h:commandButton value="Login">
<f:param name="action" value="#{loginBacking.userlogin()}"/>
</h:commandButton>
</p:panelGrid>
</h:form>
</h:body>
</html>
<小时/> 在Eclipse的调试模式下，控制台日志似乎显示正在调用userlogin方法。 broswer的构建甚至还没有呈现形式。一旦调试器到达Login bean的末尾，那么页面就会呈现。当我填写表格并点击命令按钮时，我被引导到＆＃34; login.jsp＆＃34;我的导航规则中没有定义（我没有）。