获取程序内存信息

/**
 * 获取程序内存信息
 *
 * @param
 * @return
 */
@org.junit.Test
public void MemoryAction (){
    Runtime runtime = Runtime.getRuntime();
    // 获取Runtime对象实例
      Map<String, Object> data = new HashMap<>();
    // 创建Map集合
    data.put("MaxMemorty", runtime.maxMemory());
    // 数据存储
    data.put("TotalMemory", runtime.totalMemory());
    // 数据存储
      data.put("FreeMemory", runtime.freeMemory());
    // 数据存储
     System.out.println(data);
}

{TotalMemory=255852544, MaxMemorty=3801088000, FreeMemory=246441848}