├── README.md
├── src
└── main
│ ├── resources
│ └── applicationContext.xml
│ ├── java
│ ├── Monitor.java
│ └── com
│ │ └── uptop
│ │ └── websocket
│ │ └── WebSocketTest.java
│ └── webapp
│ ├── WEB-INF
│ └── web.xml
│ └── index.jsp
└── pom.xml
/README.md:
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1 | # JavaWebSocket
2 | websockt & spring demo
3 | 欢迎多多start哦，关联CSDN文章：http://blog.csdn.net/gisredevelopment/article/details/38392629
4 |
5 |
6 |
7 |
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/src/main/resources/applicationContext.xml:
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1 |
2 |
10 |
11 |
12 |
13 |
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/src/main/java/Monitor.java:
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1 | import com.uptop.websocket.WebSocketTest;
2 |
3 | import java.util.Date;
4 | import java.util.concurrent.Executors;
5 | import java.util.concurrent.ScheduledExecutorService;
6 | import java.util.concurrent.TimeUnit;
7 |
8 |
9 | public class Monitor implements Runnable {
10 |
11 |
12 | @Override
13 | public void run() {
14 | WebSocketTest webSocketTest = new WebSocketTest();
15 | webSocketTest.sendMsg("当前时间:" + new Date());
16 | }
17 |
18 | public void sendMsg() {
19 | ScheduledExecutorService newScheduledThreadPool = Executors.newSingleThreadScheduledExecutor();
20 | newScheduledThreadPool.scheduleWithFixedDelay(new Monitor(), 20, 5, TimeUnit.SECONDS);
21 |
22 | }
23 | }
24 |
25 |
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/src/main/webapp/WEB-INF/web.xml:
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1 |
2 |
7 |
8 |
9 | contextConfigLocation
10 | classpath:applicationContext.xml
11 |
12 |
13 | org.springframework.web.context.ContextLoaderListener
14 |
15 |
16 | org.springframework.web.util.IntrospectorCleanupListener
17 |
18 |
19 |
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/src/main/webapp/index.jsp:
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1 | <%@ page language="java" pageEncoding="UTF-8" %>
2 |
3 |
4 |
5 | index Page
6 |
7 |
8 | Welcome
9 |
10 |
11 |
12 |
13 |
14 |
17 |
18 |
19 |
83 |
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/pom.xml:
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1 |
3 | 4.0.0
4 | me.gacl
5 | JavaWebSocket
6 | war
7 | 1.0-SNAPSHOT
8 | JavaWebSocket Maven Webapp
9 | http://maven.apache.org
10 |
11 |
12 |
13 |
14 | 4.0.2.RELEASE
15 |
16 |
17 |
18 |
19 | javax
20 | javaee-api
21 | 7.0
22 |
23 |
24 |
25 |
26 | org.springframework
27 | spring-core
28 | ${spring.version}
29 |
30 |
31 | org.springframework
32 | spring-web
33 | ${spring.version}
34 |
35 |
36 | org.springframework
37 | spring-oxm
38 | ${spring.version}
39 |
40 |
41 | org.springframework
42 | spring-tx
43 | ${spring.version}
44 |
45 |
46 |
47 | org.springframework
48 | spring-jdbc
49 | ${spring.version}
50 |
51 |
52 |
53 | org.springframework
54 | spring-webmvc
55 | ${spring.version}
56 |
57 |
58 | org.springframework
59 | spring-aop
60 | ${spring.version}
61 |
62 |
63 |
64 | org.springframework
65 | spring-context-support
66 | ${spring.version}
67 |
68 |
69 | org.springframework
70 | spring-test
71 | ${spring.version}
72 |
73 |
74 |
75 |
76 |
77 | JavaWebSocket
78 |
79 |
80 |
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/src/main/java/com/uptop/websocket/WebSocketTest.java:
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1 | package com.uptop.websocket;
2 |
3 | import javax.websocket.*;
4 | import javax.websocket.server.ServerEndpoint;
5 | import java.io.IOException;
6 | import java.util.concurrent.CopyOnWriteArraySet;
7 |
8 |
9 | /**
10 | * @ServerEndpoint 注解是一个类层次的注解，它的功能主要是将目前的类定义成一个websocket服务器端,
11 | * 注解的值将被用于监听用户连接的终端访问URL地址,客户端可以通过这个URL来连接到WebSocket服务器端
12 | * @author uptop
13 | */
14 | @ServerEndpoint("/websocket")
15 | public class WebSocketTest {
16 | //静态变量，用来记录当前在线连接数。应该把它设计成线程安全的。
17 | private static int onlineCount = 0;
18 |
19 | //concurrent包的线程安全Set，用来存放每个客户端对应的MyWebSocket对象。若要实现服务端与单一客户端通信的话，可以使用Map来存放，其中Key可以为用户标识
20 | public static CopyOnWriteArraySet webSocketSet = new CopyOnWriteArraySet();
21 |
22 | //与某个客户端的连接会话，需要通过它来给客户端发送数据
23 | private Session session;
24 |
25 | /**
26 | * 连接建立成功调用的方法
27 | *
28 | * @param session 可选的参数。session为与某个客户端的连接会话，需要通过它来给客户端发送数据
29 | */
30 | @OnOpen
31 | public void onOpen(Session session) {
32 | this.session = session;
33 | webSocketSet.add(this); //加入set中
34 | addOnlineCount(); //在线数加1
35 | System.out.println("有新连接加入！当前在线人数为" + getOnlineCount());
36 | }
37 |
38 | /**
39 | * 连接关闭调用的方法
40 | */
41 | @OnClose
42 | public void onClose() {
43 | webSocketSet.remove(this); //从set中删除
44 | subOnlineCount(); //在线数减1
45 | System.out.println("有一连接关闭！当前在线人数为" + getOnlineCount());
46 | }
47 |
48 | /**
49 | * 收到客户端消息后调用的方法
50 | *
51 | * @param message 客户端发送过来的消息
52 | * @param session 可选的参数
53 | */
54 | @OnMessage
55 | public void onMessage(String message, Session session) {
56 | System.out.println("来自客户端的消息:" + message);
57 | //群发消息
58 | for (WebSocketTest item : webSocketSet) {
59 | try {
60 | item.sendMessage(message);
61 | } catch (IOException e) {
62 | e.printStackTrace();
63 | continue;
64 | }
65 | }
66 | }
67 |
68 | /**
69 | * 发生错误时调用
70 | *
71 | * @param session
72 | * @param error
73 | */
74 | @OnError
75 | public void onError(Session session, Throwable error) {
76 | System.out.println("发生错误");
77 | error.printStackTrace();
78 | }
79 |
80 | /**
81 | * 这个方法与上面几个方法不一样。没有用注解，是根据自己需要添加的方法。
82 | *
83 | * @param message
84 | * @throws IOException
85 | */
86 | public void sendMessage(String message) throws IOException {
87 | this.session.getBasicRemote().sendText(message);
88 |
89 | }
90 |
91 | public static synchronized int getOnlineCount() {
92 | return onlineCount;
93 | }
94 |
95 | public static synchronized void addOnlineCount() {
96 | WebSocketTest.onlineCount++;
97 | }
98 |
99 | public static synchronized void subOnlineCount() {
100 | WebSocketTest.onlineCount--;
101 | }
102 |
103 |
104 | public void sendMsg(String msg) {
105 | for (WebSocketTest item : webSocketSet) {
106 | try {
107 | item.sendMessage(msg);
108 | } catch (IOException e) {
109 | e.printStackTrace();
110 | continue;
111 | }
112 | }
113 | }
114 |
115 |
116 | }
117 |
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