java - 如何在运行时检查服务器的 "JVM/CPU/Memory"？

Question

创建作业后，我想将其分配给密度较低的服务器。如何在运行时检查服务器的“JVM/CPU/内存”？ (我有4个服务器)(它必须返回一个值给我)

Answer 1

您可以利用系统属性和 Java 管理 API 来完成此操作，无需任何外部依赖项。

这些属性足以确定 VM；

java.vm.specification.version   Java Virtual Machine specification version
java.vm.specification.vendor    Java Virtual Machine specification vendor
java.vm.specification.name  Java Virtual Machine specification name
java.vm.version         Java Virtual Machine implementation version
java.vm.vendor          Java Virtual Machine implementation vendor
java.vm.name            Java Virtual Machine implementation name
java.specification.version  Java Runtime Environment specification version
java.specification.vendor   Java Runtime Environment specification vendor
java.specification.name     Java Runtime Environment specification name

And you can use the following management beans to determine CPU and memory:

ManagementFactory.getMemoryMXBean();
ManagementFactory.getOperatingSystemMXBean();