JDK1.8下获取USB Token序列号的一种方法

JDK1.8之后的版本SUN的这个JCE动态库就不见了，替代方法还没去研究。

public static String getSerialNumber(String libraryPath) throws Exception {
		CK_C_INITIALIZE_ARGS initArgs = new CK_C_INITIALIZE_ARGS();
		String functionList = "C_GetFunctionList";
		initArgs.flags = 0L;
		PKCS11 pkcs11 = PKCS11.getInstance(libraryPath, functionList, initArgs, false);
		long slots[] = pkcs11.C_GetSlotList(false);
		for (int i = 0; i < slots.length; i++) {
			long slot = slots[i];
			CK_SLOT_INFO slotInfo = pkcs11.C_GetSlotInfo(slot);
			if ((slotInfo.flags & PKCS11Constants.CKF_TOKEN_PRESENT) == PKCS11Constants.CKF_TOKEN_PRESENT) {
				CK_TOKEN_INFO tokenInfo = pkcs11.C_GetTokenInfo(slot);
				if (tokenInfo == null || tokenInfo.serialNumber == null) {
					continue;
				} else {
					String serial = new String(tokenInfo.serialNumber);
					if (serial.equals("")) {
						continue;
					}
					return serial;
				}
			}
		}
		return "";
	}

其中输入参数是CSP驱动动态链接库的完整路径。