Smack API 和 Java
我正在使用 Tapestry 5、Smack api 3.1.0。
我已经建立了连接，并且能够通过 xmpp 服务器与用户进行通信，但我收到的回复会在进入时发送到标准输出：
Chat chat = connection.getChatManager().createChat("[email protected]", new MessageListener() {
public void processMessage(Chat chat, Message message) {
// Print out any messages we get back to standard out.
System.out.println("Received message: " + message.getBody()); // this works
showonbrowser = message.getBody();
System.out.println(showonbrowser) // this prints nothing
}
};
我希望获得对我的 html 文件的回复，以便我可以阅读它们网络而不是控制台。 但是，当我尝试将 message.getBody() 设置为 showonbrowser （页面上的属性）时，我看不到任何结果。 有谁知道我如何解决这个问题？
问候，
凯斯
I am using Tapestry 5, Smack api 3.1.0.
I have established a connection and am able to communicate with a user through the xmpp server but the replies i get are sent to the standard output as they come in:
Chat chat = connection.getChatManager().createChat("[email protected]", new MessageListener() {
public void processMessage(Chat chat, Message message) {
// Print out any messages we get back to standard out.
System.out.println("Received message: " + message.getBody()); // this works
showonbrowser = message.getBody();
System.out.println(showonbrowser) // this prints nothing
}
};
I am looking to get the replies to my html file so i can read them on the web instead of the console. However, when i try to set message.getBody() to showonbrowser (a property on the page) i see no result. Does anyone know how I get around this?
Regards,
Kace
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Smack 是多线程的，它有一个讨厌的习惯，会（默默地）吃掉抛出的异常。很可能您没有使用线程安全的 GUI，并且它会抛出一个您永远不会得到的异常。
Smack is multi-threading and it has a nasty habit of eating up exceptions that are thrown (silently.) Most likely you are not using a thread-safe GUI and its throwing an exception that you never get.
我认为
processMessage方法是在页面呈现之后被调用的。您正在创建一个 MessageListener 实例（通过匿名类），因此您不知道何时会调用 processMessage 方法。 我认为您必须使用 AJAX 做一些事情来在页面上进行部分更新，轮询服务器并获取任何新消息以将其显示在页面上。
I think the
processMessagemethod is being called after the page is rendered.You are creating a MessageListener instance (through an anonymous class), so you don't know when the processMessage method will be called. I think you would have to do something with AJAX to do partial updates on the page, polling the server and getting any new messages to show them on the page.