Java 启动springboot netty时生成生成的文件夹

我正在研究SpringWebFlux，但生成的文件夹是在服务器启动时创建的。你知道为什么吗

如果删除生成的文件夹后重新启动服务器，将再次创建该文件夹

build.gradle文件的配置如下所示

spring boot 2.2.7.0发布版本并使用jdk 8

格雷德尔先生

buildscript {
  ext {
    restDocsVersion = "2.0.2.RELEASE"
  }

  dependencies {
    classpath "org.asciidoctor:asciidoctor-gradle-plugin:1.5.3"
  }

}

plugins {
  id "org.springframework.boot" version "2.2.7.RELEASE"
  id "io.spring.dependency-management" version "1.0.9.RELEASE"
  id "java"
  id "groovy"
  id "org.asciidoctor.convert" version "2.4.0"
}

ext {
  snippetsDir = file("build/generated-snippets")
}

test {
  useJUnitPlatform()
}

asciidoctor {
  inputs.dir snippetsDir
  dependsOn test
}

bootJar {
  dependsOn asciidoctor
  
  from("${asciidoctor.outputDir}/html5") {
    into "static/docs"
  }
  
  dependsOn "copyDocs"
}

task copyDocs(type: Copy) {
  from "${asciidoctor.outputDir}/html5"
  into "src/main/resources/static/docs"
}

group = "com.example"

java {
  sourceCompatibility = JavaVersion.VERSION_1_8
}

configurations {
  compileOnly {
    extendsFrom annotationProcessor
  }
}

build {
  dependsOn clean
}

repositories {
  mavenCentral()
}

dependencies {
  compile "org.springframework.boot:spring-boot-starter-aop"
  compile "org.springframework.boot:spring-boot-starter-logging"
  compile "org.springframework.boot:spring-boot-starter-webflux"
  compile "org.springframework.boot:spring-boot-starter-data-redis-reactive"
  compileOnly "org.projectlombok:lombok"
  annotationProcessor "org.projectlombok:lombok"
  testImplementation("org.springframework.boot:spring-boot-starter-test") {
    exclude group: "org.junit.vintage", module: "junit-vintage-engine"
  }
  testImplementation "io.projectreactor:reactor-test"

  annotationProcessor "org.springframework.boot:spring-boot-configuration-processor"
  compile group: "com.fasterxml.jackson.core", name: "jackson-core", version: "2.9.8"
  compile group: "com.fasterxml.jackson.core", name: "jackson-annotations", version: "2.9.8"
  compile group: "com.fasterxml.jackson.core", name: "jackson-databind", version: "2.9.8"

  compile group: "com.googlecode.json-simple", name: "json-simple", version: "1.1.1"

  asciidoctor "org.springframework.restdocs:spring-restdocs-asciidoctor:${restDocsVersion}"
  testCompile "org.springframework.restdocs:spring-restdocs-webtestclient:${restDocsVersion}"
  compile group: "org.codehaus.groovy", name: "groovy-all", version: "2.5.8"


}