Centos7部署websocket
时间: 2023-11-10 13:04:49 浏览: 308
要在CentOS 7上部署WebSocket,您需要安装WebSocket服务器和相关的依赖项。以下是一些步骤:
1. 安装EPEL存储库:sudo yum install epel-release
2. 安装Node.js:sudo yum install nodejs
3. 安装npm:sudo yum install npm
4. 安装WebSocket服务器:sudo npm install -g websocket
完成上述步骤后,您可以使用WebSocket服务器来创建和运行WebSocket应用程序。
相关问题
Centos7部署java websocket
在CentOS7上部署Java WebSocket,可以使用Java API for WebSocket(JSR 356)和Tyrus实现。以下是基本步骤:
1. 安装Java和Maven
```
sudo yum install java-1.8.0-openjdk-devel
sudo yum install maven
```
2. 创建Maven项目并添加Tyrus依赖
```
mvn archetype:generate -DgroupId=com.example.websocket -DartifactId=websocket-demo -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
```
在pom.xml文件中添加以下依赖:
```
<dependency>
<groupId>org.glassfish.tyrus</groupId>
<artifactId>tyrus-server</artifactId>
<version>1.13</version>
</dependency>
<dependency>
<groupId>org.glassfish.tyrus</groupId>
<artifactId>tyrus-container-grizzly-server</artifactId>
<version>1.13</version>
</dependency>
```
3. 创建WebSocket端点类
```
import javax.websocket.OnMessage;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;
@ServerEndpoint("/websocket")
public class WebSocketEndpoint {
@OnMessage
public void onMessage(String message, Session session) {
System.out.println("Received message: " + message);
session.getAsyncRemote().sendText("Echo: " + message);
}
}
```
4. 启动WebSocket服务器
```
import org.glassfish.tyrus.server.Server;
public class WebSocketServer {
public static void main(String[] args) {
Server server = new Server("localhost", 8080, "/", WebSocketEndpoint.class);
try {
server.start();
System.out.println("WebSocket server started");
Thread.currentThread().join();
} catch (Exception e) {
e.printStackTrace();
} finally {
server.stop();
}
}
}
```
5. 编译和运行
```
mvn clean package
java -cp target/websocket-demo-1.0-SNAPSHOT.jar com.example.websocket.WebSocketServer
```
在centos上安装部署python websocket
1. 安装Python
首先,需要安装Python。如果已经安装了Python,请跳过此步骤。在CentOS上安装Python可以使用以下命令:
```
sudo yum install python3
```
2. 安装pip
pip是Python的包管理器,用于安装和管理Python包。在CentOS上安装pip可以使用以下命令:
```
sudo yum install epel-release
sudo yum install python-pip
```
3. 安装websocket库
使用pip安装websocket库:
```
pip install websocket
```
4. 编写websocket服务端代码
在Python中,使用`websocket`模块来创建websocket服务端。以下是一个简单的websocket服务端代码示例:
```
import websocket
def on_message(ws, message):
print("Received: ", message)
def on_error(ws, error):
print("Error: ", error)
def on_close(ws):
print("Closed")
def on_open(ws):
print("Opened")
if __name__ == "__main__":
websocket.enableTrace(True)
ws = websocket.WebSocketApp("ws://localhost:8000/",
on_message=on_message,
on_error=on_error,
on_close=on_close)
ws.on_open = on_open
ws.run_forever()
```
这个简单的代码会创建一个websocket连接,并在接收到消息时打印出来。
5. 运行websocket服务端
在终端中运行websocket服务端代码:
```
python websocket_server.py
```
这将创建一个websocket连接并等待客户端连接。如果一切正常,你应该能够看到类似以下输出:
```
--- request header ---
GET / HTTP/1.1
Upgrade: websocket
Connection: Upgrade
Host: localhost:8000
Origin: http://localhost:8000
Sec-WebSocket-Key: koxwGJfZ7LlTjT9o9dGc+g==
Sec-WebSocket-Version: 13
-----------------------
--- response header ---
HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: 1dQ2wgt/fnBjGtwTzXAfqRxjvUo=
-----------------------
Opened
```
6. 编写websocket客户端代码
在Python中,使用`websocket`模块来创建websocket客户端。以下是一个简单的websocket客户端代码示例:
```
import websocket
def on_message(ws, message):
print("Received: ", message)
def on_error(ws, error):
print("Error: ", error)
def on_close(ws):
print("Closed")
def on_open(ws):
print("Opened")
ws.send("Hello, World!")
if __name__ == "__main__":
websocket.enableTrace(True)
ws = websocket.WebSocketApp("ws://localhost:8000/",
on_message=on_message,
on_error=on_error,
on_close=on_close)
ws.on_open = on_open
ws.run_forever()
```
这个简单的代码会创建一个websocket连接,并在连接打开时向服务端发送一条消息。
7. 运行websocket客户端
在终端中运行websocket客户端代码:
```
python websocket_client.py
```
这将创建一个websocket连接并向服务端发送一条消息。如果一切正常,你应该能够看到类似以下输出:
```
--- request header ---
GET / HTTP/1.1
Upgrade: websocket
Connection: Upgrade
Host: localhost:8000
Origin: http://localhost:8000
Sec-WebSocket-Key: y+6GjJ7VuiFh+JW8XvU6Ag==
Sec-WebSocket-Version: 13
-----------------------
--- response header ---
HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: G4g4dT4Zm1V0I4F0f9QzS1gYt+M=
-----------------------
Opened
send: b'Hello, World!'
Received: Hello, World!
Closed
```
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