尝试在android上使用smack连接openfire时出错

Question

XMPPTCPConnectionConfiguration.Builder configBuilder =  XMPPTCPConnectionConfiguration.builder();
    configBuilder.setUsernameAndPassword("test", "test");
    configBuilder.setResource("test");
    configBuilder.setServiceName("37.139.26.142");
    configBuilder.setHost("37.139.26.142");
    configBuilder.setPort(5222);
    configBuilder.setSendPresence(true);
    configBuilder.setDebuggerEnabled(true);
    configBuilder.setSecurityMode(XMPPTCPConnectionConfiguration.SecurityMode.required );
    SASLMechanism mechanism = new SASLDigestMD5Mechanism();
    SASLAuthentication.registerSASLMechanism(mechanism);
    SASLAuthentication.blacklistSASLMechanism("SCRAM-SHA-1");
    SASLAuthentication.unBlacklistSASLMechanism("DIGEST-MD5");
    AbstractXMPPConnection connection = new XMPPTCPConnection(configBuilder.build());
    try {
        connection.connect();
    } catch (SmackException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (XMPPException e) {
        e.printStackTrace();
    }
    try {
        connection.login();
    } catch (XMPPException e) {
        e.printStackTrace();
    } catch (SmackException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

我目前正在尝试与我的android应用程序和我的openfire服务器（在ubuntu上工作）握手。但我不能。我没有失败之类的。只是什么都没发生。这感觉很糟糕。

Answer 1

首先，我发现这不是关于Android部分，这是关于Openfire部分。因为我无法将其与Spark连接，我在Logcat中看到了这一点；

W/System.err: org.jivesoftware.smack.SmackException$ConnectionException: The following addresses failed: '37.139.26.142:5222' failed because java.net.SocketTimeoutException: failed to connect to /37.139.26.142 (port 5222) after 30000ms

然后我做了一些研究，尝试了一些东西，我发现它是关于Ubuntu的（至少对我来说是这样）。然后我把openfire服务器移到了Centos。然后我就可以用Spark连接到它。然后我又遇到了另一个问题。

org.jivesoftware.smack.SmackException: javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.

我用下面的代码解决了这个问题。我希望这能帮助其他人。

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);    

        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
        StrictMode.setThreadPolicy(policy);

        SmackConfiguration.DEBUG = true;
        XMPPTCPConnectionConfiguration.Builder configBuilder = XMPPTCPConnectionConfiguration.builder();
        configBuilder.setUsernameAndPassword("test", "test");
        configBuilder.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);
        configBuilder.setResource("test");
        configBuilder.setServiceName("enter your server ip here");
        configBuilder.setHost("eneter your server ip here");
        configBuilder.setPort(5222);
        configBuilder.setSendPresence(true);
        configBuilder.setDebuggerEnabled(true);
        SASLAuthentication.blacklistSASLMechanism("SCRAM-SHA-1");
        SASLAuthentication.blacklistSASLMechanism("DIGEST-MD5");
        SASLAuthentication.unBlacklistSASLMechanism("PLAIN");

        XMPPTCPConnection connection;
        connection = new XMPPTCPConnection(configBuilder.build());
        // Connect to the server
        try {
            connection.connect();
        } catch (SmackException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (XMPPException e) {
            e.printStackTrace();
        }
        // Log into the server

        try {
            connection.login();
        } catch (XMPPException e) {
            e.printStackTrace();
        } catch (SmackException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Answer 2

您尝试发送消息了吗？您确定您没有连接吗？您在Openfire管理员上检查您的测试用户没有连接吗？

首先，我建议您尝试发送一条消息：

ChatManager chatmanager = ChatManager.getInstanceFor(connection);
Chat newChat = chatmanager.createChat("anotheruser@yourdomain", new MessageListener() {
    public void processMessage(Chat chat, Message message) {
        System.out.println("Received message: " + message);
    }
});

try {
    newChat.sendMessage("Howdy!");
}
catch (XMPPException e) {
    System.out.println("Error Delivering block");
}

我从以下地方得到了这个代码：http://www.igniterealtime.org/builds/smack/docs/latest/documentation/messaging.html

另一个建议是禁用SecurityMode，只是为了测试。

configBuilder.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);

如果这些都不起作用，试着使用下面的配置，这对我来说是有效的。

XMPPTCPConnectionConfiguration.Builder config = XMPPTCPConnectionConfiguration.builder();

config.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);
config.setServiceName(serverAddress);
config.setHost(serverAddress);
config.setPort(5222);
config.setDebuggerEnabled(true);
connection = new XMPPTCPConnection(config.build());

try {
    connection.connect();
} catch (SmackException e) {
    e.printStackTrace();
} catch (IOException e) {
    e.printStackTrace();
} catch (XMPPException e) {
    e.printStackTrace();
}
try {
    connection.login(loginUser, passwordUser);
} catch (XMPPException e) {
    e.printStackTrace();
} catch (SmackException e) {
    e.printStackTrace();
} catch (IOException e) {
    e.printStackTrace();
}