本文為大家分享了SpringMVC整合websocket實(shí)現(xiàn)消息推送，供大家參考，具體內(nèi)容如下
1.創(chuàng)建websocket握手協(xié)議的后臺(tái)
（1）HandShake的實(shí)現(xiàn)類
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/** *Project Name: price *File Name: HandShake.java *Package Name: com.yun.websocket *Date: 2016年9月3日 下午4:44:27 *Copyright (c) 2016,[email protected] All Rights Reserved. */ package com.yun.websocket; import java.util.Map; import org.springframework.http.server.ServerHttpRequest; import org.springframework.http.server.ServerHttpResponse; import org.springframework.http.server.ServletServerHttpRequest; import org.springframework.web.socket.WebSocketHandler; import org.springframework.web.socket.server.HandshakeInterceptor; /** *Title: HandShake<br/> *Description: *@Company: 青島勵(lì)圖高科<br/> *@author: 劉云生 *@version: v1.0 *@since: JDK 1.7.0_80 *@Date: 2016年9月3日 下午4:44:27 <br/> */public class HandShake implements HandshakeInterceptor{ @Override public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Map<String, Object> attributes) throws Exception { // TODO Auto-generated method stub String jspCode = ((ServletServerHttpRequest) request).getServletRequest().getParameter("jspCode"); // 標(biāo)記用戶 //String userId = (String) session.getAttribute("userId"); if(jspCode!=null){ attributes.put("jspCode", jspCode); }else{ return false; } return true; } @Override public void afterHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Exception exception) { // TODO Auto-generated method stub } } |
（2）MyWebSocketConfig的實(shí)現(xiàn)類
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/** *Project Name: price *File Name: MyWebSocketConfig.java *Package Name: com.yun.websocket *Date: 2016年9月3日 下午4:52:29 *Copyright (c) 2016,[email protected] All Rights Reserved. */ package com.yun.websocket; import javax.annotation.Resource; import org.springframework.stereotype.Component; import org.springframework.web.servlet.config.annotation.EnableWebMvc; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; import org.springframework.web.socket.config.annotation.EnableWebSocket; import org.springframework.web.socket.config.annotation.WebSocketConfigurer; import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry; /** *Title: MyWebSocketConfig<br/> *Description: *@Company: 青島勵(lì)圖高科<br/> *@author: 劉云生 *@version: v1.0 *@since: JDK 1.7.0_80 *@Date: 2016年9月3日 下午4:52:29 <br/> */@Component@EnableWebMvc@EnableWebSocketpublic class MyWebSocketConfig extends WebMvcConfigurerAdapter implements WebSocketConfigurer{ @Resource MyWebSocketHandler handler; @Override public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { // TODO Auto-generated method stub registry.addHandler(handler, "/wsMy").addInterceptors(new HandShake()); registry.addHandler(handler, "/wsMy/sockjs").addInterceptors(new HandShake()).withSockJS(); } } |
（3）MyWebSocketHandler的實(shí)現(xiàn)類
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/** *Project Name: price *File Name: MyWebSocketHandler.java *Package Name: com.yun.websocket *Date: 2016年9月3日 下午4:55:12 *Copyright (c) 2016,[email protected] All Rights Reserved. */ package com.yun.websocket; import java.io.IOException; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Map.Entry; import org.springframework.stereotype.Component; import org.springframework.web.socket.CloseStatus; import org.springframework.web.socket.TextMessage; import org.springframework.web.socket.WebSocketHandler; import org.springframework.web.socket.WebSocketMessage; import org.springframework.web.socket.WebSocketSession; import com.google.gson.GsonBuilder; /** *Title: MyWebSocketHandler<br/> *Description: *@Company: 青島勵(lì)圖高科<br/> *@author: 劉云生 *@version: v1.0 *@since: JDK 1.7.0_80 *@Date: 2016年9月3日 下午4:55:12 <br/> */@Componentpublic class MyWebSocketHandler implements WebSocketHandler{ public static final Map<String, WebSocketSession> userSocketSessionMap; static { userSocketSessionMap = new HashMap<String, WebSocketSession>(); } @Override public void afterConnectionEstablished(WebSocketSession session) throws Exception { // TODO Auto-generated method stub String jspCode = (String) session.getHandshakeAttributes().get("jspCode"); if (userSocketSessionMap.get(jspCode) == null) { userSocketSessionMap.put(jspCode, session); } for(int i=0;i<10;i++){ //broadcast(new TextMessage(new GsonBuilder().create().toJson("\"number\":\""+i+"\""))); session.sendMessage(new TextMessage(new GsonBuilder().create().toJson("\"number\":\""+i+"\""))); } } @Override public void handleMessage(WebSocketSession session, WebSocketMessage<?> message) throws Exception { // TODO Auto-generated method stub //Message msg=new Gson().fromJson(message.getPayload().toString(),Message.class); //msg.setDate(new Date()); // sendMessageToUser(msg.getTo(), new TextMessage(new GsonBuilder().setDateFormat("yyyy-MM-dd HH:mm:ss").create().toJson(msg))); session.sendMessage(message); } @Override public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception { // TODO Auto-generated method stub if (session.isOpen()) { session.close(); } Iterator<Entry<String, WebSocketSession>> it = userSocketSessionMap .entrySet().iterator(); // 移除Socket會(huì)話 while (it.hasNext()) { Entry<String, WebSocketSession> entry = it.next(); if (entry.getValue().getId().equals(session.getId())) { userSocketSessionMap.remove(entry.getKey()); System.out.println("Socket會(huì)話已經(jīng)移除:用戶ID" + entry.getKey()); break; } } } @Override public void afterConnectionClosed(WebSocketSession session, CloseStatus closeStatus) throws Exception { // TODO Auto-generated method stub System.out.println("Websocket:" + session.getId() + "已經(jīng)關(guān)閉"); Iterator<Entry<String, WebSocketSession>> it = userSocketSessionMap .entrySet().iterator(); // 移除Socket會(huì)話 while (it.hasNext()) { Entry<String, WebSocketSession> entry = it.next(); if (entry.getValue().getId().equals(session.getId())) { userSocketSessionMap.remove(entry.getKey()); System.out.println("Socket會(huì)話已經(jīng)移除:用戶ID" + entry.getKey()); break; } } } @Override public boolean supportsPartialMessages() { // TODO Auto-generated method stub return false; } /** * 群發(fā) * @Title: broadcast * @Description: TODO * @param: @param message * @param: @throws IOException * @return: void * @author: 劉云生 * @Date: 2016年9月10日 下午4:23:30 * @throws */ public void broadcast(final TextMessage message) throws IOException { Iterator<Entry<String, WebSocketSession>> it = userSocketSessionMap .entrySet().iterator(); // 多線程群發(fā) while (it.hasNext()) { final Entry<String, WebSocketSession> entry = it.next(); if (entry.getValue().isOpen()) { new Thread(new Runnable() { public void run() { try { if (entry.getValue().isOpen()) { entry.getValue().sendMessage(message); } } catch (IOException e) { e.printStackTrace(); } } }).start(); } } } /** * 給所有在線用戶的實(shí)時(shí)工程檢測頁面發(fā)送消息 * * @param message * @throws IOException */ public void sendMessageToJsp(final TextMessage message,String type) throws IOException { Iterator<Entry<String, WebSocketSession>> it = userSocketSessionMap .entrySet().iterator(); // 多線程群發(fā) while (it.hasNext()) { final Entry<String, WebSocketSession> entry = it.next(); if (entry.getValue().isOpen() && entry.getKey().contains(type)) { new Thread(new Runnable() { public void run() { try { if (entry.getValue().isOpen()) { entry.getValue().sendMessage(message); } } catch (IOException e) { e.printStackTrace(); } } }).start(); } } } } |
2.創(chuàng)建websocket握手處理的前臺(tái)
?
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
<script> var path = '<%=basePath%>'; var userId = 'lys'; if(userId==-1){ window.location.href="<%=basePath2%>" rel="external nofollow" ; } var jspCode = userId+"_AAA"; var websocket; if ('WebSocket' in window) { websocket = new WebSocket("ws://" + path + "wsMy?jspCode=" + jspCode); } else if ('MozWebSocket' in window) { websocket = new MozWebSocket("ws://" + path + "wsMy?jspCode=" + jspCode); } else { websocket = new SockJS("http://" + path + "wsMy/sockjs?jspCode=" + jspCode); } websocket.onopen = function(event) { console.log("WebSocket:已連接"); console.log(event); }; websocket.onmessage = function(event) { var data = JSON.parse(event.data); console.log("WebSocket:收到一條消息-norm", data); alert("WebSocket:收到一條消息"); }; websocket.onerror = function(event) { console.log("WebSocket:發(fā)生錯(cuò)誤 "); console.log(event); }; websocket.onclose = function(event) { console.log("WebSocket:已關(guān)閉"); console.log(event); } </script> |
3.通過Controller調(diào)用進(jìn)行websocket的后臺(tái)推送
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/** *Project Name: price *File Name: GarlicPriceController.java *Package Name: com.yun.price.garlic.controller *Date: 2016年6月23日 下午3:23:46 *Copyright (c) 2016,[email protected] All Rights Reserved. */ package com.yun.price.garlic.controller; import java.io.IOException; import java.util.Date; import java.util.List; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.ServletRequestAttributes; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.socket.TextMessage; import com.google.gson.GsonBuilder; import com.yun.common.entity.DataGrid; import com.yun.price.garlic.dao.entity.GarlicPrice; import com.yun.price.garlic.model.GarlicPriceModel; import com.yun.price.garlic.service.GarlicPriceService; import com.yun.websocket.MyWebSocketHandler; /** * Title: GarlicPriceController<br/> * Description: * * @Company: 青島勵(lì)圖高科<br/> * @author: 劉云生 * @version: v1.0 * @since: JDK 1.7.0_80 * @Date: 2016年6月23日 下午3:23:46 <br/> */@Controllerpublic class GarlicPriceController { @Resource MyWebSocketHandler myWebSocketHandler; @RequestMapping(value = "GarlicPriceController/testWebSocket", method ={RequestMethod.POST,RequestMethod.GET}, produces = "application/json; charset=utf-8") @ResponseBody public String testWebSocket() throws IOException{ myWebSocketHandler.sendMessageToJsp(new TextMessage(new GsonBuilder().create().toJson("\"number\":\""+"GarlicPriceController/testWebSocket"+"\"")), "AAA"); return "1"; } } |
4.所用到的jar包
|
1
2
3
4
5
|
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-websocket</artifactId> <version>4.0.1.RELEASE</version> </dependency> |
5.運(yùn)行的環(huán)境
至少tomcat8.0以上版本，否則可能報(bào)錯(cuò)
以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持服務(wù)器之家。
原文鏈接：https://blog.csdn.net/liuyunshengsir/article/details/52495919
