Java JNA对函数的调用；“启动系统关闭”；在dll Advapi32 don'；行不通
我使用java jna调用了Advapi32 dll的函数“InitiateSystemShutton”，但它不起作用：Java JNA对函数的调用；“启动系统关闭”；在dll Advapi32 don'；行不通,java,dll,jna,Java,Dll,Jna,我使用java jna调用了Advapi32 dll的函数“InitiateSystemShutton”，但它不起作用： public interface JNAApiInterface extends StdCallLibrary { JNAApiInterface INSTANCE = (JNAApiInterface) Native.loadLibrary("Advapi32", JNAApiInterface.class); public boolean Initia
public interface JNAApiInterface extends StdCallLibrary {
JNAApiInterface INSTANCE = (JNAApiInterface) Native.loadLibrary("Advapi32", JNAApiInterface.class);
public boolean InitiateSystemShutdown(String machine, String message, short timeout, boolean forceAppClose, boolean rebootAfterShutdown);
}
public class JNABucket {
public static void main(String args[]) {
System.setProperty("jna.library.path", "C:\\Windows\\System32");
JNAApiInterface jnaLib = JNAApiInterface.INSTANCE;
jnaLib.InitiateSystemShutdown(null, null, (short)0, true, true);
}
}
Exception in thread "main" java.lang.UnsatisfiedLinkError: Error looking up
function 'InitiateSystemShutdown': No se encontró el proceso especificado.
at com.sun.jna.Function.<init>(Function.java:179)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:430)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:410)
at com.sun.jna.Library$Handler.invoke(Library.java:205)
at com.sun.proxy.$Proxy0.InitiateSystemShutdown(Unknown Source)
at es.tecnocom.pruebas.JNABucket.main(JNABucket.java:9)
有人能帮我吗？如果你看一下文档页面，你会注意到底部的实际函数名是
InitiateSystemShutdownWInitiateSystemShutdownAUNICODEInitiateSystemShutdownAInitiateSystemShutdownWpublic interface JNAApiInterface extends StdCallLibrary {
JNAApiInterface INSTANCE = (JNAApiInterface) Native.loadLibrary("Advapi32", JNAApiInterface.class);
public boolean InitiateSystemShutdownA(String machine, String message, short timeout, boolean forceAppClose, boolean rebootAfterShutdown);
}
如果您查看文档页面的，您会注意到底部的实际函数名是
InitiateSystemShutdownWInitiateSystemShutdownAUNICODEInitiateSystemShutdownAInitiateSystemShutdownWpublic interface JNAApiInterface extends StdCallLibrary {
JNAApiInterface INSTANCE = (JNAApiInterface) Native.loadLibrary("Advapi32", JNAApiInterface.class);
public boolean InitiateSystemShutdownA(String machine, String message, short timeout, boolean forceAppClose, boolean rebootAfterShutdown);
}
如果将函数更改为“InitiateSystemShutdownA”或“InitiateSystemShutdownW”后仍然不起作用，则可能是权限问题，正如@cubrr所建议的那样 尝试添加以下内容：
HANDLEByReference hToken = new HANDLEByReference();
LUID luid = new LUID();
Advapi32.INSTANCE.OpenProcessToken(Kernel32.INSTANCE.GetCurrentProcess(), WinNT.TOKEN_ADJUST_PRIVILEGES, hToken);
Advapi32.INSTANCE.LookupPrivilegeValue("", WinNT.SE_SHUTDOWN_NAME, luid);
TOKEN_PRIVILEGES tp = new TOKEN_PRIVILEGES(1);
tp.Privileges[0] = new LUID_AND_ATTRIBUTES(luid, new DWORD(WinNT.SE_PRIVILEGE_ENABLED));
Advapi32.INSTANCE.AdjustTokenPrivileges(hToken.getValue(), false, tp, tp.size(), null, new IntByReference());
jnaLib.InitiateSystemShutdown(null, null, (short)0, true, true);
如果将函数更改为“InitiateSystemShutdownA”或“InitiateSystemShutdownW”后仍然不起作用，则可能是权限问题，正如@cubrr所建议的那样 尝试添加以下内容：
HANDLEByReference hToken = new HANDLEByReference();
LUID luid = new LUID();
Advapi32.INSTANCE.OpenProcessToken(Kernel32.INSTANCE.GetCurrentProcess(), WinNT.TOKEN_ADJUST_PRIVILEGES, hToken);
Advapi32.INSTANCE.LookupPrivilegeValue("", WinNT.SE_SHUTDOWN_NAME, luid);
TOKEN_PRIVILEGES tp = new TOKEN_PRIVILEGES(1);
tp.Privileges[0] = new LUID_AND_ATTRIBUTES(luid, new DWORD(WinNT.SE_PRIVILEGE_ENABLED));
Advapi32.INSTANCE.AdjustTokenPrivileges(hToken.getValue(), false, tp, tp.size(), null, new IntByReference());
jnaLib.InitiateSystemShutdown(null, null, (short)0, true, true);
将方法调用更改为“InitiateSystemShutdownExW”可以工作，但返回false而不会重新启动系统。将方法调用更改为“InitiateSystemShutdownExW”可以工作，但返回false而不会重新启动系统。谢谢，我已将函数更改为“InitiateSystemShutdownExW”，现在它不会引发异常，但返回“false”不要重启系统。我不知道它为什么不工作。@rjaraba调用后，
Native.getLastError（）Native.getLastError（）