Spring Boot WebSocket 客户端_springboot创建websocket客户端
在Spring Boot中创建一个WebSocket客户端,你可以使用WebSocketClient
类。以下是一个简单的例子,展示了如何使用Spring的WebSocketClient
发送和接收消息。
首先,添加Spring WebSocket的依赖到你的pom.xml
文件中:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
然后,你可以创建一个配置类来定义和初始化WebSocket客户端:
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.client.WebSocketClient;
import org.springframework.web.socket.client.standard.StandardWebSocketClient;
import javax.annotation.PostConstruct;
@Configuration
public class WebSocketClientConfig {
private WebSocketClient webSocketClient;
@PostConstruct
public void initWebSocketClient() {
this.webSocketClient = new StandardWebSocketClient();
}
// 获取WebSocketClient实例的方法
public WebSocketClient getWebSocketClient() {
return webSocketClient;
}
}
最后,你可以使用WebSocketClient
连接到服务器并发送接收消息:
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.socket.WebSocketHttpHeaders;
import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.client.WebSocketClient;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
public class WebSocketClientRunner {
@Autowired
private WebSocketClient webSocketClient;
public void startClient(String uri) throws Exception {
WebSocketHttpHeaders headers = new WebSocketHttpHeaders();
// 添加自定义头部信息,如果需要的话
Map<String, Object> handshakeAttributes = new HashMap<>();
final CountDownLatch latch = new CountDownLatch(1);
webSocketClient.doHandshake(new WebSocketHandler() {
@Override
public void afterConnectionEstablished(WebSocketSession session) throws Exception {
// 连接建立后的回调
latch.countDown();
}
@Override
public void handleMessage(WebSocketSession session, WebSocketMessage<?> message) throws Exception {
// 处理接收到的消息
}
// 其他的方法可以根据需要实现
}, headers, uri, handshakeAttributes);
latch.await(); // 等待连接完成
// 发送消息,使用session发送等...
}
}
在这个例子中,WebSocketClientRunner
类使用了WebSocketClient
连接到指定的URI,并在连接建立后实现了WebSocketHandler
接口来处
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