前言
本文主要给大家介绍了关于Spring Boot WebSocket整合及nginx配置的相关内容，分享出来供大家参考学习，下面话不多说了，来一起看看详细的介绍吧。
一：Spring Boot WebSocket整合
创建一个maven项目，加入如下依赖
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<dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-dependencies</artifactId> <version>1.4.0.RELEASE</version> <scope>import</scope> <type>pom</type> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-websocket</artifactId> </dependency> </dependencies> |
代码如下：
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package com.wh.web; import org.springframework.web.socket.TextMessage; import org.springframework.web.socket.WebSocketSession; import org.springframework.web.socket.handler.TextWebSocketHandler; public class CountWebSocketHandler extends TextWebSocketHandler { private static long count = 0; protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception { session.sendMessage(new TextMessage("你是第" + (++count) + "位访客")); } } |
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package com.wh.web; import org.springframework.context.annotation.Configuration; import org.springframework.web.socket.config.annotation.WebSocketConfigurer; import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry; @Configurationpublic class WebsocketConfiguration implements WebSocketConfigurer { public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { registry.addHandler(new CountWebSocketHandler(), "/web/count"); } } |
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package com.wh.web; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.web.socket.config.annotation.EnableWebSocket; @EnableWebSocket@SpringBootApplicationpublic class ServerApp { public static void main(String[] args) { SpringApplication.run(ServerApp.class, args); } } |
application.properties 内容如下：
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server.port=9080 spring.resources.static-locations=classpath:/webapp/html/ |
src/main/resources/webapp/html/index.html 内容如下：
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<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>web socket</title> </head> <body> <h1>web socket</h1> <script type="text/javascript"> var url = 'ws://'+window.location.hostname+':9080/web/count'; var ws = new WebSocket(url); ws.onopen = function(event) { ws.send('hello'); }; ws.onmessage = function(event) { alert(event.data); }; ws.onerror = function(event) { alert(event); } </script> </body> </html> |
最后，启动main方法，访问http://127.0.0.1:9080/index.html即可看到输出
二：nginx配置
nginx 通过在客户端和后端服务器之间建立起一条隧道来支持WebSocket。
为了使nginx可以将来自客户端的Upgrade请求发送给后端服务器，Upgrade和Connection的头信息必须被显式的设置。如下所示：
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location /web/count { proxy_pass http://tomcat-server; proxy_redirect off; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; proxy_set_header Host $host:$server_port; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } |
一旦我们完成以上设置，nginx就可以处理WebSocket连接了。
注意：必须要有 proxy_set_header Host $host:$server_port; 这个配置
否则，会报：WebSocket connection to 'ws://192.168.1.104:9080/web/count' failed: Error during WebSocket handshake: Unexpected response code: 403的错误
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流，谢谢大家对服务器之家的支持。
原文链接：http://blog.csdn.net/mn960mn/article/details/52184937
