package newpackage;public class SN { static {
System.loadLibrary("disksn"); //动态库文件名,不要带后缀.dll } /*
功能:JNI调用,调用DLL中的函数,返回硬盘物理序列号
参数说明:
key【IN, OUT】: 传递的密钥,各个客户可以使用不同的密钥,目的是防止动态库被非授权用户调用,以及检测返回的密钥是否有效(防止恶意替换动态库)
nKeyLen【IN】: 密钥长度(字节数)
sn【OUT】: 保存返回的硬盘物理序列号
nSize【IN】: 存放硬盘物理序列号的缓冲区(参数sn)大小
返回值:硬盘物理序列号长度(字节数),返回负数表示错误,如:传递的密钥不正确
*/
public native static int getDiskSN(byte[] key, int nKeyLen, byte[] sn, int nSize); public static String getDiskSN() {
byte[] key = {0x11, 0x22, (byte) 0xee, 0x11, 0x3c, 0x72, 0x57, (byte) 0x84}; //传递给JNI函数的密钥
byte[] sn = new byte[128]; //保存硬盘物理序列号 int nSnLen = getDiskSN(key, key.length, sn, sn.length); if (nSnLen < 0) //非法调用(传递的密钥不正确)
{
return null;
} //以下应该对返回的密钥进行检测,看是不是和预期的相同,本例中先将其打印出来,然后做比较
System.out.print("Return key: ");
for (int i = 0; i < key.length; i++) {
String szHex;
if (key[i] >= 0) {
szHex = Integer.toString(key[i], 16);
} else {
szHex = Integer.toString(256 + key[i], 16); //需要将负数转换成无符号整数
} if (szHex.length() < 2) {
szHex = "0" + szHex; //补齐2位
}
System.out.print(szHex + " ");
}
System.out.println(); byte[] expKey = {0x22, 0x33, 0x75, 0x24, 0x77, 0x54, 0x61, 0x41}; //期望返回的密钥
if (!java.util.Arrays.equals(key, expKey)) {
System.out.println("Return key not equal to expected!");
return null;
} try {
return new String(sn, 0, nSnLen, "ISO8859_1");
} catch (java.io.UnsupportedEncodingException ex) {
return null;
}
} public static void main(String[] args) {
SN.getDiskSN();
System.out.println("Copyright (C) ee2ee.com. All rights reserved.");
System.out.println("Notice: Trial version, the last half is masked by \"*\"!");
System.out.println("disk SN: " + getDiskSN());
}
}我把disksn.dll放到system32目录,或者java.library.path,或者sun.root.library.path下,反正尝试很多路径都不能正常运行,抛出的异常信息如下(已经找到dll了):Exception in thread "main" java.lang.UnsatisfiedLinkError: newpackage.SN.getDiskSN([BI[BI)I
at newpackage.SN.getDiskSN(Native Method)
at newpackage.SN.getDiskSN(SN.java:25)
at newpackage.SN.main(SN.java:64)
Java Result: 1
System.loadLibrary("disksn"); //动态库文件名,不要带后缀.dll } /*
功能:JNI调用,调用DLL中的函数,返回硬盘物理序列号
参数说明:
key【IN, OUT】: 传递的密钥,各个客户可以使用不同的密钥,目的是防止动态库被非授权用户调用,以及检测返回的密钥是否有效(防止恶意替换动态库)
nKeyLen【IN】: 密钥长度(字节数)
sn【OUT】: 保存返回的硬盘物理序列号
nSize【IN】: 存放硬盘物理序列号的缓冲区(参数sn)大小
返回值:硬盘物理序列号长度(字节数),返回负数表示错误,如:传递的密钥不正确
*/
public native static int getDiskSN(byte[] key, int nKeyLen, byte[] sn, int nSize); public static String getDiskSN() {
byte[] key = {0x11, 0x22, (byte) 0xee, 0x11, 0x3c, 0x72, 0x57, (byte) 0x84}; //传递给JNI函数的密钥
byte[] sn = new byte[128]; //保存硬盘物理序列号 int nSnLen = getDiskSN(key, key.length, sn, sn.length); if (nSnLen < 0) //非法调用(传递的密钥不正确)
{
return null;
} //以下应该对返回的密钥进行检测,看是不是和预期的相同,本例中先将其打印出来,然后做比较
System.out.print("Return key: ");
for (int i = 0; i < key.length; i++) {
String szHex;
if (key[i] >= 0) {
szHex = Integer.toString(key[i], 16);
} else {
szHex = Integer.toString(256 + key[i], 16); //需要将负数转换成无符号整数
} if (szHex.length() < 2) {
szHex = "0" + szHex; //补齐2位
}
System.out.print(szHex + " ");
}
System.out.println(); byte[] expKey = {0x22, 0x33, 0x75, 0x24, 0x77, 0x54, 0x61, 0x41}; //期望返回的密钥
if (!java.util.Arrays.equals(key, expKey)) {
System.out.println("Return key not equal to expected!");
return null;
} try {
return new String(sn, 0, nSnLen, "ISO8859_1");
} catch (java.io.UnsupportedEncodingException ex) {
return null;
}
} public static void main(String[] args) {
SN.getDiskSN();
System.out.println("Copyright (C) ee2ee.com. All rights reserved.");
System.out.println("Notice: Trial version, the last half is masked by \"*\"!");
System.out.println("disk SN: " + getDiskSN());
}
}我把disksn.dll放到system32目录,或者java.library.path,或者sun.root.library.path下,反正尝试很多路径都不能正常运行,抛出的异常信息如下(已经找到dll了):Exception in thread "main" java.lang.UnsatisfiedLinkError: newpackage.SN.getDiskSN([BI[BI)I
at newpackage.SN.getDiskSN(Native Method)
at newpackage.SN.getDiskSN(SN.java:25)
at newpackage.SN.main(SN.java:64)
Java Result: 1
http://www.blogjava.net/lhulcn618/archive/2009/05/17/205504.html
用system32下的regsvc32.exe注册下看看?