小编Duš*_*lay的帖子

我正在使用spring-boot-maven-plugin通过以下命令从我的应用程序构建 docker 映像：

spring-boot::build-image

我需要使用以下 jvm 参数更改 jvm 直接内存的默认大小（默认为 10m）：

-XX:MaxDirectMemorySize=64M

这是我绝望地尝试在应用程序中做到这一点pom.xml，我尝试了我想到的一切：

<plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <configuration>
                            <jvmArguments>-XX:MaxDirectMemorySize=64M</jvmArguments>
                            <environmentVariables>
                                <JAVA_TOOL_OPTIONS>-XX:MaxDirectMemorySize=64M</JAVA_TOOL_OPTIONS>
                                <JAVA_OPTS>-XX:MaxDirectMemorySize=64M</JAVA_OPTS>
                            </environmentVariables>
                            <systemPropertyVariables>
                                <JAVA_TOOL_OPTIONS>-XX:MaxDirectMemorySize=64M</JAVA_TOOL_OPTIONS>
                                <JAVA_OPTS>-XX:MaxDirectMemorySize=64M</JAVA_OPTS>
                            </systemPropertyVariables>
                        </configuration>
                    </execution>
                </executions>

                <configuration>
                    <layers>
                        <enabled>true</enabled>
                    </layers>
                    <image>
                        <name>docker.io/example/${project.artifactId}:${project.version}</name>
                    </image>

                    <excludeDevtools>true</excludeDevtools>

                    <systemPropertyVariables>
                        <JAVA_TOOL_OPTIONS>-XX:MaxDirectMemorySize=64M</JAVA_TOOL_OPTIONS>
                        <JAVA_OPTS>-XX:MaxDirectMemorySize=64M</JAVA_OPTS>
                    </systemPropertyVariables>
                    <environmentVariables>
                        <JAVA_TOOL_OPTIONS>-XX:MaxDirectMemorySize=64M</JAVA_TOOL_OPTIONS>
                        <JAVA_OPTS>-XX:MaxDirectMemorySize=64M</JAVA_OPTS>
                    </environmentVariables>
                    <jvmArguments>-XX:MaxDirectMemorySize=64M -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5005</jvmArguments>
                </configuration>
            </plugin>

但直接内存仍设置为 10M :( 应用程序启动时我可以在日志文件中看到：

Picked up JAVA_TOOL_OPTIONS: -Djava.security.properties=/layers/paketo-buildpacks_bellsoft-liberica/java-security-properties/java-security.properties -agentpath:/layers/paketo-buildpacks_bellsoft-liberica/jvmkill/jvmkill-1.16.0-RELEASE.so=printHeapHistogram=1 -XX:ActiveProcessorCount=8 -XX:MaxDirectMemorySize=10M -Xmx11521920K -XX:MaxMetaspaceSize=144375K -XX:ReservedCodeCacheSize=240M -Xss1M -Dorg.springframework.cloud.bindings.boot.enable=true

有人可以告诉我我做错了什么吗？

笔记：

Spring Boot：2.3.7.RELEASE

当我使用 手动运行 docker image 时 …