Snippet

Leveraging Virtual Threads for Scalable Web Services

Spring Boot 3.2+ supports Java 21's Virtual Threads. By configuring the executor, the server can handle thousands of concurrent I/O-bound connections with minimal memory overhead compared to traditional platform threads.

snippet.java

java

@Configuration
public class VirtualThreadConfig {
    @Bean
    public TomcatProtocolHandlerCustomizer<?> protocolHandlerCustomizer() {
        return protocolHandler -> {
            protocolHandler.setExecutor(Executors.newVirtualThreadPerTaskExecutor());
        };
    }
}
// In application.properties: spring.threads.virtual.enabled=true

spring

Breakdown

Executors.newVirtualThreadPerTaskExecutor()

Creates an executor that spawns a new lightweight virtual thread for every incoming task.

spring.threads.virtual.enabled=true

The preferred declarative way to enable virtual thread support for all Spring task executors.

Previous snippet Next snippet

More Expert Java exercises →

Leveraging Virtual Threads for Scalable Web Services

Related