掘友等级
微服务，SpringCloud MySQL,AIGC 
获得徽章 9
获取堆内存
MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();//堆内存使用情况MemoryUsage memoryUsage = memoryMXBean.getHeapMemoryUsage();//初始的总内存long totalMemorySize = memoryUsage.getInit();//已使用的内存long usedMemorySize = memoryUsage.getUsed();
