如何使用Smack使用XMPP设置/获取配置文件数据

   <groupId>org.igniterealtime.smack</groupId>
   <artifactId>smack-core</artifactId>
   <version>4.4.4</version>
</dependency>

XMPPTCPConnectionConfiguration config = XMPPTCPConnectionConfiguration.builder()
        .setXmppDomain("example.com")
        .setHost("example.com")
        .setPort(5222)
        .setSecurityMode(ConnectionConfiguration.SecurityMode.disabled)
        .build();
AbstractXMPPConnection connection = new XMPPTCPConnection(config);
connection.connect();
connection.login("username", "password");

Form form = new Form(DataForm.Type.form);
form.addField("FORM_TYPE", "http://jabber.org/protocol/admin", FormField.Type.hidden);
form.addField("username", "example", FormField.Type.text_single);
form.addField("password", "example", FormField.Type.text_private);

// 设置配置文件数据
ConfigureFormManager configureFormManager = new ConfigureFormManager(connection);
configureFormManager.setForm("example.com", form);

// 获取配置文件数据
ConfigureFormManager.ConfigureFormResult result = configureFormManager.getForm("example.com");
Form resultForm = result.getForm();

String username = resultForm.getField("username").getValues().get(0);
String password = resultForm.getField("password").getValues().get(0);