Question

我编写了一个网站，作为我的Android应用程序的websocket客户端，充当我的WiFi网络中的websocket服务器。最初我用javascript / jquery编写它并且它已经没有任何问题，但因为我对vaadin着迷，我完全用vaadin重写它并且它已经在本地tomcat 7或8上工作，但不在远程tomcat上7或8.永远不会调用android服务器的onOpen方法。 jquery版本的服务器与vaadin版本的服务器相同，但是当我尝试启动我的页面时，我收到此错误并且页面未连接到我的手机，虽然我可以ping我的手机：< / p>

vaadinPush.debug.js:11276: WebSocket connection to 'ws://serialcall.rdroid.info/PUSH/?v-uiId=3&v-csrfToken=18797926-2579-4599-a0af-29729f9deb88&X-Atmosphere-tracking-id=0&X-Atmosphere-Framework=2.1.5.vaadin4-jquery&X-Atmosphere-Transport=websocket&X-Atmosphere-TrackMessageSize=true&X-Cache-Date=0&Content-Type=application/json;%20charset=UTF-8&X-atmo-protocol=true' failed: Error during WebSocket handshake: Unexpected response code: 500

这是非工作远程服务器上的vaadin日志信息

371ms   Queuing push message: {"csrfToken":"0b112c17-8c20-4307-8d2b-871589d720a6", "rpc":[["505","com.vaadin.shared.ui.ui.UIServerRpc","resize",["923","1280","1280","923"]],["506","org.vaadin.jouni.animator.client.AnimatorServerRpc","preserveStyles",[{"useKeyframeAnimation":false, "animationTarget":"546", "duration":"2000", "delay":"0", "css":{"properties":{"opacity":"0.2"}}, "easing":"DEFAULT", "id":"25", "iterationCount":"1", "preserveStyles":true}]]], "syncId":1}
720ms   Push connection closed
721ms   Push connection using primary method (websocket) failed. Trying with long-polling
1131ms  Push connection established using long-polling
1132ms  Sending push message: {"csrfToken":"0b112c17-8c20-4307-8d2b-871589d720a6", "rpc":[["505","com.vaadin.shared.ui.ui.UIServerRpc","resize",["923","1280","1280","923"]],["506","org.vaadin.jouni.animator.client.AnimatorServerRpc","preserveStyles",[{"useKeyframeAnimation":false, "animationTarget":"546", "duration":"2000", "delay":"0", "css":{"properties":{"opacity":"0.2"}}, "easing":"DEFAULT", "id":"25", "iterationCount":"1", "preserveStyles":true}]]], "syncId":1}
1154ms  No onClose was received before reconnect. Forcing state to closed.

这是vaadin日志消息在工作本地服务器上的显示方式：

1008ms  Making UIDL Request with params: {"csrfToken":"6be927e0-1e38-407d-b8fe-744d83a23e43", "rpc":[["1614","com.vaadin.shared.ui.ui.UIServerRpc","resize",["923","1280","1280","923"]],["1615","org.vaadin.jouni.animator.client.AnimatorServerRpc","preserveStyles",[{"useKeyframeAnimation":false, "animationTarget":"1655", "duration":"2000", "delay":"0", "css":{"properties":{"opacity":"0.2"}}, "easing":"DEFAULT", "id":"20", "iterationCount":"1", "preserveStyles":true}]]], "syncId":1}
1009ms  Queuing push message: {"csrfToken":"6be927e0-1e38-407d-b8fe-744d83a23e43", "rpc":[["1614","com.vaadin.shared.ui.ui.UIServerRpc","resize",["923","1280","1280","923"]],["1615","org.vaadin.jouni.animator.client.AnimatorServerRpc","preserveStyles",[{"useKeyframeAnimation":false, "animationTarget":"1655", "duration":"2000", "delay":"0", "css":{"properties":{"opacity":"0.2"}}, "easing":"DEFAULT", "id":"20", "iterationCount":"1", "preserveStyles":true}]]], "syncId":1}
1303ms  Push connection established using websocket

我使用tootallnate作为websocket客户端，我在服务器和本地计算机上具有相同的tomcat版本和相同的javaversion，即使我禁用了防火墙。没有异常被抛出，也无法找出它为什么不起作用。

任何想法我做错了什么？

Answer 1

看起来您已将应用程序部署到没有公共IP的Jelastic实例中，这意味着所有请求都由nginx代理。如上所述here，您必须获取公共IP才能让您的应用程序使用Jelastic中的WebSockets。

websocket连接失败了vaadin

1 个答案: