JNA-查询Windows进程 [英] JNA - Query Windows Processes
本文介绍了JNA-查询Windows进程的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试使用JNA返回有关特定Windows进程的详细信息.不确定如何执行此操作.在互助网上找不到太多帮助.我想返回的一些信息包括CPU和内存使用情况.下面只是我发现的一个例子.
I'm trying to use JNA to return details on a specific Windows Process. Not exactly sure how to do this. Couldn't find much on the interwebs for help. Some information I would like returned include CPU and memory usage. The below is just an example I found.
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import com.sun.jna.*;
import com.sun.jna.Library.Handler;
import com.sun.jna.platform.win32.*;
import com.sun.jna.platform.win32.Advapi32Util.*;
import com.sun.jna.platform.win32.WinNT.*;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.win32.*;
import com.sun.jna.Native;
import com.sun.jna.platform.win32.*;
import com.sun.jna.win32.W32APIOptions;
public class WindowsProcess {
public static void main(String[] args) {
WinNT winNT = (WinNT) Native.loadLibrary(WinNT.class, W32APIOptions.UNICODE_OPTIONS);
WinNT.HANDLE snapshot = winNT.CreateToolhelp32Snapshot(Tlhelp32.TH32CS_SNAPPROCESS, new WinDef.DWORD(0));
Thelp32.PROCESSENTRY32.ByReference processEntry = new Tlhelp32.PROCESSENTRY32.ByReference();
while (winNT.Process32Next(snapshot, processEntry)) {
System.out.println(processEntry.th32ProcessID + "\t" + Native.toString(processEntry.szExeFile));
}
winNT.CloseHandle(snapshot);
}
}
推荐答案
与 JNA 3.5兼容.0.我认为您所使用的示例与该库的最新版本不兼容.
This works with JNA 3.5.0. The example you have isn't compatible with more recent versions of the library, I think.
import com.sun.jna.platform.win32.Kernel32;
import com.sun.jna.platform.win32.Tlhelp32;
import com.sun.jna.platform.win32.WinDef;
import com.sun.jna.platform.win32.WinNT;
import com.sun.jna.win32.W32APIOptions;
import com.sun.jna.Native;
public class ListProcesses {
public static void main(String[] args) {
Kernel32 kernel32 = (Kernel32) Native.loadLibrary(Kernel32.class, W32APIOptions.UNICODE_OPTIONS);
Tlhelp32.PROCESSENTRY32.ByReference processEntry = new Tlhelp32.PROCESSENTRY32.ByReference();
WinNT.HANDLE snapshot = kernel32.CreateToolhelp32Snapshot(Tlhelp32.TH32CS_SNAPPROCESS, new WinDef.DWORD(0));
try {
while (kernel32.Process32Next(snapshot, processEntry)) {
System.out.println(processEntry.th32ProcessID + "\t" + Native.toString(processEntry.szExeFile));
}
}
finally {
kernel32.CloseHandle(snapshot);
}
}
}
另请参阅我的答案在其他地方.
这篇关于JNA-查询Windows进程的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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