Commit 6ea89b5fb2ee700d14c64167fb8ec574e3da02f5
1 parent
868b6113
feature: Klassen-Stub für den "WebSocketController" hinzugefügt
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3 changed files
with
85 additions
and
5 deletions
pom.xml
... | ... | @@ -24,6 +24,7 @@ |
24 | 24 | <slf4j-version>1.7.25</slf4j-version> |
25 | 25 | <jglue-version>3.1.4</jglue-version> |
26 | 26 | <jackson-version>2.8.8.1</jackson-version> |
27 | + <jetty-version>9.4.8.v20171121</jetty-version> | |
27 | 28 | |
28 | 29 | <!-- Substituiert die Platzhalter in der "persistence.xml" --> |
29 | 30 | <TEST_SCHEMA_NAME>swxercise_test</TEST_SCHEMA_NAME> |
... | ... | @@ -97,6 +98,24 @@ |
97 | 98 | <version>${jglue-version}</version> |
98 | 99 | <scope>test</scope> |
99 | 100 | </dependency> |
101 | + <dependency> | |
102 | + <groupId>org.eclipse.jetty</groupId> | |
103 | + <artifactId>jetty-server</artifactId> | |
104 | + <version>${jetty-version}</version> | |
105 | + <scope>provided</scope> | |
106 | + </dependency> | |
107 | + <dependency> | |
108 | + <groupId>org.eclipse.jetty</groupId> | |
109 | + <artifactId>jetty-servlet</artifactId> | |
110 | + <version>${jetty-version}</version> | |
111 | + <scope>provided</scope> | |
112 | + </dependency> | |
113 | + <dependency> | |
114 | + <groupId>org.eclipse.jetty.websocket</groupId> | |
115 | + <artifactId>javax-websocket-server-impl</artifactId> | |
116 | + <version>${jetty-version}</version> | |
117 | + <scope>provided</scope> | |
118 | + </dependency> | |
100 | 119 | <!-- Sorgt für eine schnellere Verwaltung der JSON-Umwandlung im REST-Kontext --> |
101 | 120 | <!-- dependency> |
102 | 121 | <groupId>com.fasterxml.jackson.core</groupId> |
... | ... | @@ -124,6 +143,11 @@ |
124 | 143 | <target>${java-version}</target> |
125 | 144 | </configuration> |
126 | 145 | </plugin> |
146 | + <plugin> | |
147 | + <groupId>org.eclipse.jetty</groupId> | |
148 | + <artifactId>jetty-maven-plugin</artifactId> | |
149 | + <version>${jetty-version}</version> | |
150 | + </plugin> | |
127 | 151 | </plugins> |
128 | 152 | </build> |
129 | 153 | </project> | ... | ... |
src/main/java/net/ziemers/swxercise/ui/ws/WebSocketController.java
0 → 100644
1 | +package net.ziemers.swxercise.ui.ws; | |
2 | + | |
3 | +import javax.enterprise.context.ApplicationScoped; | |
4 | +import javax.websocket.CloseReason; | |
5 | +import javax.websocket.OnClose; | |
6 | +import javax.websocket.OnMessage; | |
7 | +import javax.websocket.OnOpen; | |
8 | +import javax.websocket.Session; | |
9 | +import javax.websocket.server.ServerEndpoint; | |
10 | +import java.io.IOException; | |
11 | + | |
12 | +/** | |
13 | + * Stub für die WebSocket-Unterstützung. | |
14 | + */ | |
15 | +@ApplicationScoped | |
16 | +@ServerEndpoint(WebSocketController.serverEndpointPath) | |
17 | +public class WebSocketController { | |
18 | + | |
19 | + static final String serverEndpointPath = "/ws/api/v1/anEndpoint"; | |
20 | + | |
21 | + /** | |
22 | + * Callback-Methode für das Öffnen einer neuen WebSocket-Verbindung. | |
23 | + * | |
24 | + * @param session das {@link Session}-Objekt der neuen WebSocket-Verbindung | |
25 | + */ | |
26 | + @OnOpen | |
27 | + public void onOpen(Session session) { | |
28 | + System.out.println("WebSocket opened with session id #" + session.getId()); | |
29 | + } | |
30 | + | |
31 | + /** | |
32 | + * Callback-Methode, die den Empfang einer neuen WebSocket-Nachricht signalisiert. | |
33 | + * | |
34 | + * @param message der Inhalt der WebSocket-Nachricht | |
35 | + * @param session das {@link Session}-Objekt der sendenden WebSocket-Verbindung | |
36 | + */ | |
37 | + @OnMessage | |
38 | + public void onMessage(String message, Session session) { | |
39 | + System.out.println("WebSocket Message '" + message + "' received by session id #" + session.getId()); | |
40 | + try { | |
41 | + session.getBasicRemote().sendText(message); | |
42 | + } catch (IOException e) { | |
43 | + e.printStackTrace(); | |
44 | + } | |
45 | + } | |
46 | + | |
47 | + /** | |
48 | + * Callback-Methode für das Schließen einer geöffneten WebSocket-Verbindung. | |
49 | + * | |
50 | + * @param reason die Ursache für das Schließen der WebSocket-Verbindung | |
51 | + * @param session das {@link Session}-Objekt der geschlossenen WebSocket-Verbindung | |
52 | + */ | |
53 | + @OnClose | |
54 | + public void onClose(CloseReason reason, Session session) { | |
55 | + System.out.println("Closing WebSocket due to " + reason.getReasonPhrase() + " by id #" + session.getId()); | |
56 | + } | |
57 | + | |
58 | +} | ... | ... |
src/main/webapp/websockets.html
... | ... | @@ -6,7 +6,7 @@ |
6 | 6 | </head> |
7 | 7 | <body> |
8 | 8 | <script> |
9 | - var url = "ws://localhost:8080/swxercise/ws/api/v1/test"; | |
9 | + var url = "ws://localhost:8080/swxercise/ws/api/v1/anEndpoint"; | |
10 | 10 | var webSocket = new WebSocket(url); |
11 | 11 | |
12 | 12 | // Callback-Methoden für die WebSocket-Kommunikation |
... | ... | @@ -32,10 +32,8 @@ |
32 | 32 | } |
33 | 33 | |
34 | 34 | function sendWebSocketMessage() { |
35 | - if (webSocket.send('Hello World!')) | |
36 | - console.log("WebSocket Message sent."); | |
37 | - else | |
38 | - alert("WebSocket Message not sent!"); | |
35 | + webSocket.send('Hello World!'); | |
36 | + console.log("Tried to send WebSocket Message."); | |
39 | 37 | } |
40 | 38 | </script> |
41 | 39 | <button onclick="sendWebSocketMessage()">Klick mich.</button> | ... | ... |