我在我的 grails 应用程序中使用 Atmosphere。从我的 IDE（IntelliJ Idea）运行应用程序时，一切都很好。但是当我将它部署到tomcat（7.0）时出现异常：
2013-07-08 09:07:19,118 [ajp-nio-8009-exec-13] ERROR cpr.AtmosphereFramework - AtmosphereFramework exception
java.lang.IllegalStateException: Not supported.
at org.atmosphere.cpr.AtmosphereRequest.startAsync(AtmosphereRequest.java:594)
at org.atmosphere.container.Servlet30CometSupport.suspend(Servlet30CometSupport.java:138)
at org.atmosphere.container.Servlet30CometSupport.service(Servlet30CometSupport.java:104)
at org.atmosphere.container.Tomcat7Servlet30SupportWithWebSocket.doService(Tomcat7Servlet30SupportWithWebSocket.java:65)
at org.atmosphere.container.TomcatWebSocketUtil.doService(TomcatWebSocketUtil.java:87)
at org.atmosphere.container.Tomcat7Servlet30SupportWithWebSocket.service(Tomcat7Servlet30SupportWithWebSocket.java:61)
at org.atmosphere.cpr.AtmosphereFramework.doCometSupport(AtmosphereFramework.java:1571)
at org.atmosphere.cpr.AtmosphereServlet.doPost(AtmosphereServlet.java:176)
at org.atmosphere.cpr.AtmosphereServlet.doGet(AtmosphereServlet.java:162)
at com.googlecode.psiprobe.Tomcat70AgentValve.invoke(Tomcat70AgentValve.java:38)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
web.xml 中的 myservlet 配置为：
<servlet>
<description>MeteorServlet</description>
<servlet-name>MeteorServlet</servlet-name>
<servlet-class>org.grails.plugin.platform.events.push.GrailsMeteorServlet</servlet-class>
<init-param>
<param-name>org.atmosphere.cpr.broadcaster.shareableThreadPool</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>org.atmosphere.cpr.broadcaster.maxProcessingThreads</param-name>
<param-value>20</param-value>
</init-param>
<init-param>
<param-name>org.atmosphere.cpr.broadcaster.maxAsyncWriteThreads</param-name>
<param-value>20</param-value>
</init-param>
<load-on-startup>0</load-on-startup>
<async-supported>true</async-supported>
</servlet>
用法是
var receivedOrders = new Array();
var grailsEvents = new grails.Events("${rootPath}",
{
transport: 'sse',
fallbackTransport: 'long-polling',
timeout: 10000,
onMessage: function(data){
try{
if(data.responseBody.length > 0){
var order = jQuery.parseJSON(data.responseBody).body;
if(order.id){
if (receivedOrders.indexOf(order.id) == -1) {
receivedOrders[receivedOrders.length] = order.id;
var url = "<g:createLink controller="orderAdministration" action="orderNotification"/>";
$.ajax({
type: "POST",
url: url,
data: { id: order.id }
}).done(function (response) {
if (response != "0") {
$.msgGrowl({
type: 'info', sticky: true, 'title': '${message(code: 'order.notification.title')}', 'text': response, lifetime: 5000
});
}
});
}
}
}
} catch (e) {
// Atmosphere sends commented out data to WebKit based browsers
}
}
});
grailsEvents.on('order_event', function(data){});
似乎tomcat配置有问题。任何想法？
编辑：
我已经测试过了。但不起作用。
出现问题是因为我在 grails.Events 中提供了选项。通过更改为这个，异常解决了。
var receivedOrders = new Array();
var grailsEvents = new grails.Events("${rootPath}");
function handleOrderEvent(data){
try{
if(data.id){
if (receivedOrders.indexOf(data.id) == -1) {
receivedOrders[receivedOrders.length] = data.id;
var url = "<g:createLink controller="orderAdministration" action="orderNotification"/>";
$.ajax({
type: "POST",
url: url,
data: { id: data.id }
}).done(function (response) {
if (response != "0") {
$.msgGrowl({
type: 'info', sticky: true, 'title': '${message(code: 'order.notification.title')}', 'text': response, lifetime: 5000
});
}
});
}
}
}catch (e) {
// Atmosphere sends commented out data to WebKit based browsers
}
}
grailsEvents.on('order_event', handleOrderEvent, {transport:'long-polling', fallbackTransport:'polling'});
但仍然没有事件传播到客户端！
我在 tomcat 前面有一个 apache 网络服务器。在服务中触发的事件，但不是在 javascript 中触发的事件。