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WebSocket教程02（简单的聊天室Web应用。-Java ServerEndpoint + JavaScript客户端）

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00:06创建以GlassFish 4作为目标运行时的WebSocketPrj02 Web项目
00:25创建一个websocket ServerEndpoint和一个html客户端
01:07代码ChatroomServerEndpoint
01:28跟踪聊天室用户集
02:05建立新的连接功能
02:52关闭连接功能
03:20接收消息功能
06:13创建并填充JSON消息
07:28代码default.html客户端
08:54处理来自服务器的传入JSON消息
10:01发送JSON消息功能
10:39试运行完成的应用程序

网站+下载源代码@ https://zaneacademyapp.appspot.com或http://zaneacademy.com或直接@https：//sites.fastspring.com/zaneacademy/product/all下载。

12 comments

  1. WebSocket Security Tutorial – Setup and run on both GlassFish 4.1 & Tomcat 8 @ https://youtu.be/Am5eTQ-sQn4
    WebSocket Tutorial 15 – ServerEndpoint + CDI + Stateless, Stateful, and Singleton Session Beans @ https://youtu.be/McifXIboiRk
    WebSocket Tutorial 14 – WebSocket Path Mapping + Java Servlet + HttpSession + glassFish 4 + tomcat 8 @ https://youtu.be/92fM1JPqDVI
    WebSocket Tutorial 13 – ServerEndpoint + Java Servlet + HttpSession + glassFish 4 + tomcat 8 @ https://youtu.be/YE8my5AF67s
    WebSocket Java Swing Sketch App. Tutorial (Tomcat 8 + Java 8) @ https://youtu.be/BzQ9KUbfLek
    WebSocket JavaScript Sketch App. Tutorial @ https://youtu.be/wU-FRsLky3Q
    WebSocket JavaFX Sketch App. Tutorial (Tomcat 8 + Java 8) @ https://youtu.be/2xgnSpcAVzE
    WebSocket Tutorial 09 (ClientEndpoint JavaFX chat app w/ encoders & decoders) @ https://youtu.be/0nTqlVOI2Rc
    WebSocket Tutorial 08 (JavaFX Programmatic ClientEndpoint Chat App.) @ https://youtu.be/EVL7fUTrFl4
    WebSocket Tutorial 07 – ClientEndpoint Java Application @ https://youtu.be/KVPXQWJagDg
    WebSocket Tutorial 06 (roundtrip JSON + Message handling) @ https://youtu.be/KmSpk8XWeQY
    WebSocket Tutorial 05 (Programmatic Endpoint chatroom web app.) @ https://youtu.be/nLe8vuxW8b4
    WebSocket Tutorial 04 (Enhanced chatroom web application) @ https://youtu.be/NjUbKcEcLQA
    WebSocket Tutorial 03 (encoders & decoders in a simple chatroom web app.) @ https://youtu.be/4nWZ2Oog_w8
    WebSocket Tutorial 02 (Simple chatroom web app. – Java ServerEndpoint + JavaScript Client) @ https://youtu.be/BikL52HYaZg
    WebSocket (Tutorial 01 – Java Server + JavaScript Client + GlassFish 4.0 + JDK 1.7) @ https://youtu.be/_Fi4vz6oUio

  4. Hello!I have this problem.When I use GlassFish it works fine but when I use Tomcat (8.5) endpoint closes when I press button on my web page so in text area I can see starting message when endpoint was opened and message when it closes and nothing else. So every time I type my username in text field as a first message endpoints instantly closes! Java 8+Tomcat 8.5

  6. I keep getting this "Firefox cant establish a connection to the server at ws://localhost:8080/WebSocketPrj02/chatroomServerEndpoint" error on console while running it from Netbeans 8.02, java 8 with glassfish. When trying to send a message, it shows "invalid state error". Also shows, "The connection to ws://….. was interrupted while the page was loading". In Chrome it shows nothing while loading, but when sending message it shows the same invalid state error as on Firefox. Please help…..

  9. Hi,
     After downloaded, I have ran using Tomcat8 and getting below error

    [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WebSocketChatApp]]
     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
     … 6 more
    Caused by: java.lang.NoClassDefFoundError: javax/json/JsonStructure
     at java.lang.Class.getDeclaredMethods0(Native Method)
     at java.lang.Class.privateGetDeclaredMethods(Class.java:2570)
     at java.lang.Class.getDeclaredMethods(Class.java:1855)
     at org.apache.tomcat.websocket.pojo.PojoMethodMapping.<init>(PojoMethodMapping.java:86)
     at org.apache.tomcat.websocket.server.WsServerContainer.addEndpoint(WsServerContainer.java:245)
     at org.apache.tomcat.websocket.server.WsSci.onStartup(WsSci.java:120)
     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5156)
     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

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