Java 9 中 Process API 的核心库有哪些变化?
javaobject oriented programmingprogramming更新于 2025/9/20 19:56:17
在 Java 9 中，可以通过本机调用检索进程的 PID ，这可以通过 ProcessHandle 实现。我们还可以检索有关当前正在运行的 Java 进程 (JVM) 的信息和 Info (ProcessHandle 的内部类) 类，其中包含有关进程的详细信息。我们还可以返回系统中所有当前正在运行的进程的快照 。
示例
import java.lang.ProcessHandle.Info;
public class ProcessAPIChanges {
public void detailedAPIInfo(ProcessHandle processHandle) {
Info processInfo = processHandle.info();
System.out.println("Detailed Process Info is Provided Below: ");
System.out.println("[Executable Name] " + processInfo.command().get());
System.out.println("[User Name] " + processInfo.user().get());
System.out.println("[Start Time] " + processInfo.startInstant().get().toString());
}
public static void main(String args[]) {
System.out.println("Process API Changes (Core Library) ");
ProcessAPIChanges processAPIChanges = new ProcessAPIChanges();
ProcessHandle processHandle = ProcessHandle.current();
System.out.println("[Current Process Id] " + processHandle.pid());
processAPIChanges.detailedAPIInfo(processHandle);
ProcessHandle.allProcesses()
.filter(ph -> ph.info().command().isPresent())
.limit(4).forEach((process) -> processAPIChanges.detailedAPIInfo(process));
}
}
输出
Process API Changes (Core Library) [Current Process Id] 5724 Detailed Process Info is Provided Below: [Executable Name] C:\Program Files\Java\jdk-9.0.4\bin\java.exe [User Name] Tutorialspoint\User [Start Time] 2020-04-01T07:35:43.152Z Detailed Process Info is Provided Below: [Executable Name] C:\WINDOWS\System32\taskhostex.exe [User Name] Tutorialspoint\User [Start Time] 2020-04-01T04:14:36.241Z Detailed Process Info is Provided Below: [Executable Name] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe [User Name] Tutorialspoint\User [Start Time] 2020-04-01T04:14:36.257Z Detailed Process Info is Provided Below: [Executable Name] C:\WINDOWS\explorer.exe [User Name] Tutorialspoint\User [Start Time] 2020-04-01T04:14:36.335Z Detailed Process Info is Provided Below: [Executable Name] C:\Program Files (x86)\Dell Wireless\Bluetooth Suite\BtvStack.exe [User Name] Tutorialspoint\User [Start Time] 2020-04-01T04:14:51.594Z
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java 参考教程 - 该教程包含有关 java 的更多信息:https://www.cainiaomax.com/java/
