如何使用带有 JSF 的 SocialAuth 进行重定向？

Question

我正在尝试使用 SocialAuth，想法很简单，用 facebook 点击log in 然后将用户重定向到我登录的网站。 log in 部分我明白了，如下：

1) /index.xhtml

<h:form id="login-facebook">
    <h:commandButton id="login" action="#{socialFacebook.login}" value="Login"/>
</h:form>

2)socialFacebook豆

package controller;


@ManagedBean(name="socialFacebook")
@RequestScoped
public class SocialFacebook implements Serializable{
    private static final long serialVersionUID = -4787254243136316495L;

    private String code;

    @PostConstruct
    public void init(){
        try {
            HttpServletRequest request=(HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
            SocialAuthManager manager = (SocialAuthManager)FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("authManager");
            Map<String, String> paramsMap = SocialAuthUtil.getRequestParametersMap(request);
            AuthProvider provider = manager.connect(paramsMap);

            // get profile
            Profile p = provider.getUserProfile();
            System.out.println(p.getFullName());
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    public void login(){
        try {
            HttpServletRequest request=(HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

            //Create an instance of SocialAuthConfig object
            SocialAuthConfig config  = SocialAuthConfig.getDefault();

            //load configuration. By default load the configuration from oauth_consumer.properties. 
            //You can also pass input stream, properties object or properties file name.
            config.load(); 

            //Create an instance of SocialAuthManager and set config
            SocialAuthManager manager = new SocialAuthManager();
            manager.setSocialAuthConfig(config);

            //URL of YOUR application which will be called after authentication
            //String successUrl = "http://localhost:8080/cc/pages/system/login_facebook.xhtml" + ";jsessionid=" + req.getSession().getId();
            String successUrl = "http://localhost:8080/cc/pages/system/index.xhtml" + ";jsessionid=" + request.getSession().getId();

            // get Provider URL to which you should redirect for authentication.
            // id can have values "facebook", "twitter", "yahoo" etc. or the OpenID URL
            String url = manager.getAuthenticationUrl("facebook", successUrl);

            // Store in session
            FacesContext.getCurrentInstance().getExternalContext().getSessionMap().put("authManager", manager);                
            //redirect to the successful login page
            FacesContext.getCurrentInstance().responseComplete();
            FacesContext.getCurrentInstance().getExternalContext().redirect(url);

        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }


    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    }

3) Facebook 返回以下网址：

http://localhost:8080/cc/pages/system/home_facebook.xhtml;jsessionid=e143aa975fa3f313c677fbcb03e3?code=AQAmJXdQX0B__zJHXnRyPfgaG1CfNUEEEEEEEEEEEEEEEZJLEpsT5s1spd3KtWGWI2HYaIOZKLkrn8axKs4iKwJVQJwJQB_WSs2iWkp2DDDDDDDDDDDDtdRPLPG7psp6r2PYmn7CTm2QNNha7f1QlgmoZtBsIEF0SSSSSSSSSSSSSSSSSSSSSSS8RutAU8dqI2KDE57f#_=_

4) 它按照 BalusC 的建议通过我的 init 方法，但始终打印 nope :( ：

@ManagedBean(name="redirectFacebook")
@RequestScoped
public class RedirectFacebook implements Serializable{
    private static final long serialVersionUID = -566276017320074630L;

    private String code;
    private Profile profile;


    @PostConstruct
    public void init(){
        try {
            HttpServletRequest request=(HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
            HttpSession session = (HttpSession) request.getAttribute("jsessionid");

            if (request.getAttribute("code") != null)
                System.out.println("code");
            else
                System.out.println("nope :(");

            if (session != null){
                SocialAuthManager manager = (SocialAuthManager)FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("authManager");
                Map<String, String> paramsMap = SocialAuthUtil.getRequestParametersMap(request);
                AuthProvider provider = manager.connect(paramsMap);

                // get profile
                profile = provider.getUserProfile();
                System.out.println(profile.getFullName());
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

5) 它还在我的 home_facebook 页面上打印 nope :(：

<h:form id="redirect-facebook-form">
    <f:metadata>
        <f:viewParam name="code" value="#{redirectFacebook.code}" />
    </f:metadata>
    <h:panelGroup rendered="#{not empty redirectFacebook.profile}"> 
        Hello, you're successfully associated as #{socialFacebook.profile.firstName} on Facebook
    </h:panelGroup>
    <h:panelGroup rendered="#{empty redirectFacebook.profile}"> 
        Nope :(
    </h:panelGroup>
</h:form>

但是，我有点困惑如何在我的 bean 中获取结果并进行一些验证，例如用户是否已注册。我知道，在 Google 中查找一些代码，我必须这样做，但是我怎样才能重定向到我的 bean 并执行此操作并将用户重定向到正确的页面？

    SocialAuthManager manager = (SocialAuthManager)FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("authManager");
    Map<String, String> paramsMap = SocialAuthUtil.getRequestParametersMap(request);
    AuthProvider provider = manager.connect(paramsMap);

    // get profile
    Profile p;
    p = provider.getUserProfile();

这确实需要一些晚上才能弄清楚。 任何想法都非常感谢，谢谢。

Answer 1

除了您在 URL 中使用 localhost 之外，我没有看到任何代码级别问题。 这是一个wiki link，它描述了如何使用localhost 运行应用程序。

如果这不起作用，请告诉我。