使用 Linkedin-j 的 Linkedin 桌面应用程序？
我正在使用 LinkedIn-j api 制作 Linkedin 应用程序。我面临的问题是我想开发一个简单的桌面应用程序。相反，我必须说控制台应用程序。问题出现在我收到此错误的地方
Exception in thread "main" com.google.code.linkedinapi.client.oauth.LinkedInOAuthServiceException: oauth.signpost.exception.OAuthCommunicationException: Communication with the service provider failed: api.linkedin.com
at com.google.code.linkedinapi.client.oauth.LinkedInOAuthServiceImpl.getOAuthRequestToken(LinkedInOAuthServiceImpl.java:159)
at com.lineedapp.common.LinkedinApp.main(LinkedinApp.java:17)
Caused by: oauth.signpost.exception.OAuthCommunicationException: Communication with the service provider failed: api.linkedin.com
at oauth.signpost.AbstractOAuthProvider.retrieveToken(AbstractOAuthProvider.java:214)
at oauth.signpost.AbstractOAuthProvider.retrieveRequestToken(AbstractOAuthProvider.java:69)
at com.google.code.linkedinapi.client.oauth.LinkedInOAuthServiceImpl.getOAuthRequestToken(LinkedInOAuthServiceImpl.java:148)
... 1 more
Caused by: java.net.UnknownHostException: api.linkedin.com
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(Unknown Source)
at com.sun.net.ssl.internal.ssl.BaseSSLSocketImpl.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
at oauth.signpost.basic.DefaultOAuthProvider.sendRequest(DefaultOAuthProvider.java:48)
at oauth.signpost.AbstractOAuthProvider.retrieveToken(AbstractOAuthProvider.java:177)
... 3 more
，我想我无法在应用程序注册表中提供主机。我确实提供了本地主机，但它不起作用。请帮忙？？
I am using LinkedIn-j api for making a Linkedin application.The problem that I am facing is that I want to develop a simple desktop application. Rather I must say a console application. The problem comes where I get this error
Exception in thread "main" com.google.code.linkedinapi.client.oauth.LinkedInOAuthServiceException: oauth.signpost.exception.OAuthCommunicationException: Communication with the service provider failed: api.linkedin.com
at com.google.code.linkedinapi.client.oauth.LinkedInOAuthServiceImpl.getOAuthRequestToken(LinkedInOAuthServiceImpl.java:159)
at com.lineedapp.common.LinkedinApp.main(LinkedinApp.java:17)
Caused by: oauth.signpost.exception.OAuthCommunicationException: Communication with the service provider failed: api.linkedin.com
at oauth.signpost.AbstractOAuthProvider.retrieveToken(AbstractOAuthProvider.java:214)
at oauth.signpost.AbstractOAuthProvider.retrieveRequestToken(AbstractOAuthProvider.java:69)
at com.google.code.linkedinapi.client.oauth.LinkedInOAuthServiceImpl.getOAuthRequestToken(LinkedInOAuthServiceImpl.java:148)
... 1 more
Caused by: java.net.UnknownHostException: api.linkedin.com
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(Unknown Source)
at com.sun.net.ssl.internal.ssl.BaseSSLSocketImpl.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
at oauth.signpost.basic.DefaultOAuthProvider.sendRequest(DefaultOAuthProvider.java:48)
at oauth.signpost.AbstractOAuthProvider.retrieveToken(AbstractOAuthProvider.java:177)
... 3 more
I suppose I am not able to provide a host in the application registration form. I did Provide Local host but its not working. Please Help??
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评论（2）
您似乎没有
api.linkedin.com的网络访问权限。确保无论您是否使用代理，您都可以访问https://api.linkedin.com。It looks like you don't have network access to
api.linkedin.com. Make sure that, if you are behind a proxy or not, you have access tohttps://api.linkedin.com.java.net.UnknownHostException: api.linkedin.com意味着您无法访问服务器。检查您是否位于代理后面。如果是这样，您必须在 linkedin API 中找到绕过此代理的方法。
The
java.net.UnknownHostException: api.linkedin.commeans that you are not able to reach the server.Check that your are not behind a proxy. If so, you have to find a way to bypass this proxy in the linkedin API.