在调用ExitWindowsEX
Windows API函数时,我曾经遇到过一些特权问题。
所以我编写了以下代码来获得权限:
这在C ++中运行良好
#include <cstdlib>
#include <windows.h>
#include <iostream>
using namespace std;
/*
*
*/
int MyExitWindows(int flag, int reason);
int main(int argc, char** argv) {
MyExitWindows(EWX_SHUTDOWN, 0);
}
int MyExitWindows(int flag, int reason) {
HANDLE hToken;
TOKEN_PRIVILEGES tkp;
// Get a token for this process.
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
return GetLastError();
// Get the LUID for the shutdown privilege.
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid);
tkp.PrivilegeCount = 1; // one privilege to set
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
// Get the shutdown privilege for this process.
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,
(PTOKEN_PRIVILEGES) NULL, 0);
// Cannot test the return value of AdjustTokenPrivileges.
ExitWindowsEx(flag, reason);
if (GetLastError() != ERROR_SUCCESS) {
return GetLastError();
}
return 0;
}
但是当我从Java中调用它时,这不起作用
#include <jni.h>
#include <cstdlib>
#include <windows.h>
#include "com_ehsunbehravesh_jshutdown_system_Shutdowner.h"
using namespace std;
int MyExitWindows(int flag, int reason);
JNIEXPORT jint JNICALL Java_com_ehsunbehravesh_jshutdown_system_Shutdowner_exitWindowsEx
(JNIEnv *env, jobject obj, jlong flag, jlong reason) {
return MyExitWindows(flag, reason);
}
int MyExitWindows(int flag, int reason) {
HANDLE hToken;
TOKEN_PRIVILEGES tkp;
// Get a token for this process.
int cpid = GetCurrentProcessId();
printf("%d", cpid);
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
return GetLastError();
// Get the LUID for the shutdown privilege.
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid);
tkp.PrivilegeCount = 1; // one privilege to set
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
// Get the shutdown privilege for this process.
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,
(PTOKEN_PRIVILEGES) NULL, 0);
// Cannot test the return value of AdjustTokenPrivileges.
ExitWindowsEx(flag, reason);
if (GetLastError() != ERROR_SUCCESS) {
return GetLastError();
}
return 0;
}
答案 0 :(得分:0)
你有没有理由不使用System.exit(int)
?
Java尝试控制应用程序的关闭,也许它试图阻止你以其他方式执行。