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/index.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/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：
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
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，谢谢大家对脚本之家的支持。
