我正在按照 Atmosphere教程获取基本的聊天应用程序设置。目前在运行 javascript 时，它似乎能够使用 Web 套接字建立与服务器的连接。我在 Chrome 控制台中得到以下信息：
Invoking executeWebSocket core.js:2298
Using URL: ws://localhost:8080/web-transport/chat?X-Atmosphere-tracking-id=0&X-Atmosphere-Framework=1.1&X-Atmosphere-Transport=websocket&X-Cache-Date=0&Content-Type=application/json core.js:2298
Websocket successfully opened
但是，当我尝试发布数据 (subSocket.push(...)) 时，似乎什么也没发生。我已经尝试调试 AtmosphereHandlerService 但它似乎从未被击中（并且没有生成日志。
我错过了什么会导致这种情况？
到目前为止，我有以下内容：
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:j2ee="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2.5.xsd">
<description>AtmosphereServlet</description>
<display-name>AtmosphereServlet</display-name>
<servlet>
<description>AtmosphereServlet</description>
<servlet-name>AtmosphereServlet</servlet-name>
<servlet-class>org.atmosphere.cpr.AtmosphereServlet</servlet-class>
<!-- If you want to use Servlet 3.0 -->
<!-- <async-supported>true</async-supported> -->
<!-- List of init-param -->
</servlet>
<servlet-mapping>
<servlet-name>AtmosphereServlet</servlet-name>
<!-- Any mapping -->
<url-pattern>/chat/*</url-pattern>
</servlet-mapping>
</web-app>
ChatAtmosphereHandler.java
@AtmosphereHandlerService(path = "/chat")
public class ChatAtmosphereHandler implements AtmosphereHandler {
public void onRequest(AtmosphereResource resource) throws IOException {
AtmosphereRequest request = resource.getRequest();
if (request.getMethod().equalsIgnoreCase("GET")) {
resource.suspend();
} else if (request.getMethod().equalsIgnoreCase("POST")) {
resource.getBroadcaster().broadcast(request.getReader().readLine().trim());
}
}
public void onStateChange(AtmosphereResourceEvent event) throws IOException {
AtmosphereResource resource = event.getResource();
AtmosphereResponse response = resource.getResponse();
if (resource.isSuspended()) {
response.getWriter().write("Hello");
switch (resource.transport()) {
case JSONP:
case LONG_POLLING:
event.getResource().resume();
break;
case WEBSOCKET:
case STREAMING:
response.getWriter().flush();
break;
}
} else if (!event.isResuming()) {
event.broadcaster().broadcast("bye bye");
}
}
public void destroy() {
}
}
Maven依赖：
<dependency>
<groupId>org.atmosphere</groupId>
<artifactId>atmosphere-runtime</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>org.atmosphere</groupId>
<artifactId>atmosphere-jersey</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>eu.infomas</groupId>
<artifactId>annotation-detector</artifactId>
<version>3.0.1</version>
</dependency>
最后是javascript：
$(document).ready(function() {
var socket = $.atmosphere;
var subSocket = null;
var request = {
url: 'http://localhost:8080/web-transport/' + 'chat',
contentType : "application/json",
logLevel : 'debug',
transport : 'websocket' ,
fallbackTransport: 'long-polling'
};
request.onOpen = function(response) {
console.log('onopen', response);
};
request.onReconnect = function (request, response) {
console.log('onreconnect', request, response);
};
request.onMessage = function (response) {
console.log('onmessage', response);
};
request.onError = function(response) {
console.log('onerror', response);
};
$('#send').click(function(){
subSocket.push(JSON.stringify({ author: 'me', message: 'hello' }));
});
$('#subscribe').click(function(){
subSocket = socket.subscribe(request);
});
});