用java获取本机的硬件信息，CPU利用率，内存利用率，硬盘信息等,Java access to the machine with the hardware information, CPU utilization, memory utilization, hard disk information

实现linux性能分析 如：cpu利用率， 内存使用情况，网络流量等-Performance Analysis of the achievement of linux such as: cpu utilization, memory usage, network traffic, such as