用springboot3.4.1 maven为例子

1 pom

···省略部分信息，仅保留核心部分
<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.4.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
 <properties>
        <java.version>21</java.version>
    </properties>
 <dependencies>
    <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
 </dependencies>
  <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

2 开启

properties

spring.threads.virtual.enabled=true

yaml

spring:
  threads:
    virtual:
      enabled: true

3.验证

3.1实现一个简单get接口获取当前线程

    @GetMapping("/name")
    public String toThread() {
        return Thread.currentThread().toString();
    }

3.2 返回内容

**[#93,tomcat-handler-0]/runnable@ForkJoinPool-1-worker-1

3.3 关闭虚拟线程再次调用返回内容

Thread[#68,http-nio-8080-exec-3,5,main]

4 验证undertow

4.1 修改pom

       <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-undertow</artifactId>
        </dependency>

4.2 开启虚拟线程返回

**[#115,undertow-0]/runnable@ForkJoinPool-1-worker-1

4.3 关闭虚拟线程返回

Thread[#106,XNIO-1 task-2,5,main]