1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 3. 测试代码 步骤一:调用获取操作系统的方法 现在,我们可以在主方法中调用我们编写的获取操作系统的方法,并输出结果。 publicstaticvoidmain(String[]args){StringoperatingSystem=getOperatingSystem();System.out.println("当前电脑操作系统为:"+operatingSystem);}...
publicclassOSInfo{publicstaticStringgetOperatingSystem(){Stringos=System.getProperty("os.name").toLowerCase();if(os.contains("win")){return"Windows";}elseif(os.contains("mac")){return"Mac";}elseif(os.contains("nix")||os.contains("nux")||os.contains("aix")){return"Linux";}else{return...
System.out.println(getDisk()); } //获取内存使用率 public static String getMemery(){ OperatingSystemMXBean osmxb = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean(); // 总的物理内存+虚拟内存 long totalvirtualMemory = osmxb.getTotalSwapSpaceSize(); // 剩余的物理内存 long free...
Process process = Runtime.getRuntime().exec("top -b"); // top命令是Linux下常用的性能分析工具,能够实时显示系统中各个进程的资源使用情况。 is = process.getInputStream(); // 可以读取新开启的程序的 System.out.print 输出的内容 isr = new InputStreamReader(is); // 将字节流转换为字符流。 br...
getPath(); Map pathMap =Maps.newHashMap(); pathMap.put("总空间",total); pathMap.put("可用空间",un); pathMap.put("空闲空间",free); result.put(path,pathMap); } return result; } public Mapmem() { Map result =Maps.newHashMap(); OperatingSystemMXBean osmxb = (OperatingSystemMX...
* * @since 1.6 */ public static Console console() { if (cons == null) { synchronized (System.class) { cons = sun.misc.SharedSecrets.getJavaIOAccess().console(); } } return cons; } /** * 返回从创建此 Java 虚拟机的实体继承的通道。 * * 此方法返回通过调用系统范围的默认 * {@lin...
(kubectl get node --context prod -o wide) <(kubectl top node --context prod) ...
SecurityManager sm = System.getSecurityManager(); if (sm != null) sm.checkPermission(this); これにより、適切なアクセス制御検査が消費者コンテキスト内で確実に実行されます。事実、頻繁に使用されるハッシュ表およびアクセス制御の一覧は、多くの場合置き換えられ、GuardedObjectsのハッシュ...
Properties must exist when packaging the application, but we can create Environment Variables on the Operating System at almost any point. 5. Conclusion Although conceptually similar, the application of Properties and Environment Variables are quite different. ...
getSecurityManager(); if (sm != null) { sm.checkPermission(new RuntimePermission("setIO")); } } private static native void setIn0(InputStream in); private static native void setOut0(PrintStream out); private static native void setErr0(PrintStream err); /** * Sets the System security....