我正在开发简单的应用程序来帮助我学习
Java中的WebSocket和Tyrus概念.这是我的服务器端(服务器端点)和我的pom.xml以及我的客户端和pom.xml：
服务器端
@ServerEndpoint(value="/websocket/{client-id}")
public class MyServerEndpoint {
private static final LinkedList<Session> clients = new LinkedList<Session>();
@OnOpen
public void onOpen(Session session) {
clients.add(session);
}
@OnMessage
public void onMessage(String message,@PathParam("client-id") String clientId) {
for (Session client : clients) {
try {
client.getBasicRemote().sendObject(clientId+": "+message);
} catch (IOException e) {
e.printStackTrace();
} catch (EncodeException e) {
e.printStackTrace();
}
}
}
@OnClose
public void onClose(Session peer) {
clients.remove(peer);
}
}
的pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>TyrusJacpFXServer</groupId>
<artifactId>TyrusJacpFXServer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>javax.websocket</groupId>
<artifactId>javax.websocket-api</artifactId>
<scope>compile</scope>
<version>1.0</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.4</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
</project>
客户端
MyClient.java
@ClientEndpoint
public class MyClient {
@OnOpen
public void onOpen(Session session) {
System.out.println("Connected to endpoint: " + session.getBasicRemote());
try {
session.getBasicRemote().sendText("Hello");
} catch (IOException ex) {
}
}
@OnMessage
public void onMessage(String message) {
System.out.println(message);
}
@OnError
public void onError(Throwable t) {
t.printStackTrace();
}
}
App.java
public class App {
public Session session;
protected void start()
{
WebSocketContainer container = ContainerProvider.getWebSocketContainer();
String uri = "ws://localhost:8080/TyrusJacpFXClient/websocket/desktop-client";
System.out.println("Connecting to " + uri);
try {
session = container.connectToServer(MyClient.class,URI.create(uri));
} catch (DeploymentException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String args[]){
App client = new App();
client.start();
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String input = "";
try {
do{
input = br.readLine();
if(!input.equals("exit"))
client.session.getBasicRemote().sendText(input);
}while(!input.equals("exit"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
的pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>TyrusJacpFXClient</groupId>
<artifactId>TyrusJacpFXClient</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>javax.websocket</groupId>
<artifactId>javax.websocket-api</artifactId>
<scope>compile</scope>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.glassfish.tyrus</groupId>
<artifactId>tyrus-client</artifactId>
<version>1.8.3</version>
</dependency>
<dependency>
<groupId>org.glassfish.tyrus</groupId>
<artifactId>tyrus-container-grizzly</artifactId>
<version>1.1</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
我收到此错误：
Exception in thread "main" java.lang.RuntimeException: Could not find an implementation class. at javax.websocket.ContainerProvider.getWebSocketContainer(ContainerProvider.java:73) at org.hwc.App.start(App.java:25) at org.hwc.App.main(App.java:40)
有人可以帮我看看问题吗？服务器在GlassFish 4.0中运行
解决方法
你有依赖问题.这个：
<dependency>
<groupId>org.glassfish.tyrus</groupId>
<artifactId>tyrus-container-grizzly</artifactId>
<version>1.1</version>
</dependency>
是不正确的.你需要使用[1](基于灰熊的客户端)：
<dependency>
<groupId>org.glassfish.tyrus</groupId>
<artifactId>tyrus-container-grizzly-client</artifactId>
<version>1.8.3</version>
</dependency>
或[2](jdk 7 NIO客户端impl)
<dependency>
<groupId>org.glassfish.tyrus</groupId>
<artifactId>tyrus-container-jdk-client</artifactId>
<version>1.8.3</version>
</dependency>
