我需要注册一个ColdFusion回调(使用Lucee)将从一个Java类中如下执行:如何注册ColdFusion回调并从Java类中调用它?
(我掐灭如何我想象调用回调 - 在下面的评论)
package com.bonnydoonmedia.io;
import org.java_websocket.client.WebSocketClient;
import org.java_websocket.drafts.Draft_10;
import org.java_websocket.handshake.ServerHandshake;
import java.net.URI;
/*
* author: Robert Munn
* date: 3/15/15
*
* WSClient.java
*
* Simple extension of WebSocketClient by Too Tall Nate
*
* based on example client at
*
* https://github.com/TooTallNate/Java-WebSocket
*
* License: Mozilla Public License 2.0
*
*/
public class WSClient extends WebSocketClient{
public WSClient(URI serverUri , Draft_10 draft) {
super(serverUri, draft);
}
public WSClient(URI serverURI) {
super(serverURI);
}
public void connect(){
super.connect();
}
public void send(String message){
super.send(message);
}
@Override
public void onOpen(ServerHandshake handshakedata) {
System.out.println("opened connection");
System.out.println("ready state : " + super.getReadyState());
/* INVOKE THE CALLBACK HERE LIKE:
callback({
"action": "onOpen",
"data": {}
});
*/
}
@Override
public void onMessage(String message) {
System.out.println("received: " + message);
/* INVOKE THE CALLBACK HERE LIKE:
callback({
"action": "onMessage",
"data": {
"message": message
}
});
*/
}
@Override
public void onClose(int code, String reason, boolean remote) {
// The codecodes are documented in class org.java_websocket.framing.CloseFrame
System.out.println("Connection closed by " + (remote ? "remote peer" : "us"));
/* INVOKE THE CALLBACK HERE LIKE:
callback({
"action": "onClose",
"data": {
}
});
*/
}
@Override
public void onError(Exception ex) {
ex.printStackTrace();
// if the error is fatal then onClose will be called additionally
/* INVOKE THE CALLBACK HERE LIKE:
callback({
"action": "onMessage",
"data": {
}
});
*/
}
}
创建ColdFusion的“对象”是这样的(这已经工作):
// create the websocket client
uriObject = createObject("java", "java.net.URI").init("ws://local.websockets");
wsClient = CreateObject("java", "WSClient").init(uriObject);
现在我需要注册一个回调,我想它会像这样做:
function void wsCallback (data) {
switch(data.action) {
case "onOpen":
break;
case "onClose":
break;
case "onMessage":
break;
case "onError":
break;
}
};
wsClient.setCallback(wsCallback);
问题是,我该如何做最后一部分(在类中设置回调)?
由于它是一个抽象类,请尝试使用[CFCProxy](https://helpx.adobe.com/coldfusion/developing-applications/using-web-elements-and-external-objects/integrating-jee-and -java元素合CFML应用/增强-java的集成功能于coldfusion.html)。创建具有所需功能的CFC(“onClose”等等)。然后在你的java类中,使用coldfusion.cfc.CFCProxy创建该组件的一个实例,并调用相应的函数,即'CFCProxy yourInstance = new CFCProxy(cfcPath ...); yourInstance.invoke(“onClose”,args)'。 – Leigh
嗯......我之前没有用过CFCProxy。我将不得不进行调查。谢谢你的提示! – Redtopia
(编辑)应该很简单。在CF方面没什么特别的。在java中,只需使用'new CFCProxy(cfcPath ...)'和'invoke(...)'创建并创建实例就可以了:) – Leigh