如何使用Facebook4j登录Facebook

我正在开发一个照片查看器,这是一个Java桌面应用程序,并将其与Facebook集成我正在使用Facebook4J库。 但我无法在哪里为用户提供用户名和密码….

我使用以下代码:

 public static Configuration createConfiguration() { ConfigurationBuilder confBuilder = new ConfigurationBuilder(); confBuilder.setDebugEnabled(true); confBuilder.setOAuthAppId("************"); confBuilder.setOAuthAppSecret("***************"); confBuilder.setUseSSL(true); confBuilder.setJSONStoreEnabled(true); Configuration configuration = confBuilder.build(); return configuration; } public static void main(String[] argv) throws FacebookException { Configuration configuration = createConfiguration(); FacebookFactory facebookFactory = new FacebookFactory(configuration ); Facebook facebookClient = facebookFactory.getInstance(); AccessToken accessToken = null; try{ OAuthSupport oAuthSupport = new OAuthAuthorization(configuration ); accessToken = oAuthSupport.getOAuthAppAccessToken(); }catch (FacebookException e) { System.err.println("Error while creating access token " + e.getLocalizedMessage()); } facebookClient.setOAuthAccessToken(accessToken); //results in an error says {An active access token must be used to query information about the current user} facebookClient.postStatusMessage("Hello World from Facebook4J."); } 

如何传递username的用户usernamepassword

您应该从Facebook检索OAuthAppId。 为此,请在Facebook Developers上创建一个应用程序,然后单击“创建新应用程序”。 填写表单,然后从代码中显示的页面复制粘贴AppId和Appsecret。 例:

 confBuilder.setOAuthAppId("YOUR APPID HERE"); confBuilder.setOAuthAppSecret("YOUR APPSECRET HERE"); 

要获取AccessToken,您必须按照此处所述构建登录流程