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
<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:
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")); } }
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; @configuration public class websocketconfiguration implements websocketconfigurer { public void registerwebsockethandlers(websockethandlerregistry registry) { registry.addhandler(new countwebsockethandler(), "/web/count"); } }
package com.wh.web; import org.springframework.boot.springapplication; import org.springframework.boot.autoconfigure.springbootapplication; import org.springframework.web.socket.config.annotation.enablewebsocket; @enablewebsocket @springbootapplication public class serverapp { public static void main(string[] args) { springapplication.run(serverapp.class, args); } }
application.properties 内容如下:
server.port=9080 spring.resources.static-locations=classpath:/webapp/html/
src/main/resources/webapp/html/ 内容如下:
<!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/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:
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
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