APDPlat提供了机器绑定的功能，对于不同的机器会生成不同的机器码，必须要对生成的机器码进行计算获得注册码，注册码验证成功之后系统才能正常运行。
本文主要介绍APDPlat如何生成机器码。
首先，定义了一个统一的接口，以支持不同操作系统不同实现的透明切换：
/**
*生成机器码的接口，不同平台有不同实现
* @author 杨尚川
*/
public interface SequenceService {
/**
* 获取机器码
* @return 机器码
*/
public String getSequence();
}
其次，定义了一个抽象类，实现了一些通用的功能，如生成MD5摘要、将很长的字符串以固定的位数分割开，以便于人类阅读（如将机器码 71F5DA7F495E7F706D47F3E63DC6349A 每4个一组，以-分割为71F5-DA7F-495E-7F70-6D47-F3E6-3DC6-349A）、利用sigar来生成机器码。这里需要在pom.xml中加入sigar依赖。
<dependency> <groupId>org.fusesource</groupId> <artifactId>sigar</artifactId> <version>1.6.4</version> <exclusions> <exclusion> <groupId>log4j</groupId> <artifactId>log4j</artifactId> </exclusion> </exclusions> </dependency>
import org.apdplat.module.system.service.PropertyHolder;
import org.apdplat.platform.log.APDPlatLogger;
import org.apdplat.platform.util.ConvertUtils;
import org.apdplat.platform.util.FileUtils;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HashSet;
import java.util.Properties;
import java.util.Set;
import org.apdplat.platform.log.APDPlatLoggerFactory;
import org.hyperic.sigar.Mem;
import org.hyperic.sigar.NetFlags;
import org.hyperic.sigar.NetInterfaceConfig;
import org.hyperic.sigar.Sigar;
/**
*机器码生成的通用服务
* @author 杨尚川
*/
public abstract class AbstractSequenceService implements SequenceService{
protected final APDPlatLogger LOG = APDPlatLoggerFactory.getAPDPlatLogger(getClass());
/**
* 对一段String生成MD5摘要信息
* @param message 要摘要的String
* @return 生成的MD5摘要信息
*/
protected String getMD5(String message) {
message += "{apdplat}";
try {
MessageDigest md = MessageDigest.getInstance("MD5");
LOG.debug("MD5摘要长度：" + md.getDigestLength());
byte[] b = md.digest(message.getBytes("utf-8"));
String md5 = ConvertUtils.byte2HexString(b)+message.length();
return getSplitString(md5);
} catch (NoSuchAlgorithmException | UnsupportedEncodingException e) {
LOG.error("MD5摘要失败",e);
}
return null;
}
/**
* 将很长的字符串以固定的位数分割开，以便于人类阅读
* @param str
* @return
*/
protected String getSplitString(String str){
return getSplitString(str, "-", 4);
}
/**
* 将很长的字符串以固定的位数分割开，以便于人类阅读
* 如将
* 71F5DA7F495E7F706D47F3E63DC6349A
* 以-，每4个一组，则分割为
* 71F5-DA7F-495E-7F70-6D47-F3E6-3DC6-349A
* @param str 字符串
* @param split 分隔符
* @param length 长度
* @return
*/
protected String getSplitString(String str, String split, int length){
int len=str.length();
StringBuilder temp=new StringBuilder();
for(int i=0;i<len;i++){
if(i%length==0 && i>0){
temp.append(split);
}
temp.append(str.charAt(i));
}
String[] attrs=temp.toString().split(split);
StringBuilder finalMachineCode=new StringBuilder();
for(String attr : attrs){
if(attr.length()==length){
finalMachineCode.append(attr).append(split);
}
}
String result=finalMachineCode.toString().substring(0, finalMachineCode.toString().length()-1);
return result;
}
/**
* 利用sigar来生成机器码，当然这个实现不是很好，无法获得CPU ID，希望有兴趣的朋友来改进这个实现
* @param osName 操作系统类型
* @return 机器码
*/
protected String getSigarSequence(String osName) {
try {
File libFile = new File(FileUtils.getAbsolutePath("/WEB-INF/lib/"+PropertyHolder.getProperty("libsigar."+osName)));
LOG.debug("libsigar."+osName+" : "+libFile.getAbsolutePath());
System.load(libFile.getAbsolutePath());
Set<String> result = new HashSet<>();
Sigar sigar = new Sigar();
String[] ifaces = sigar.getNetInterfaceList();
for (String iface : ifaces) {
NetInterfaceConfig cfg = sigar.getNetInterfaceConfig(iface); if (NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress()) || (cfg.getFlags() & NetFlags.IFF_LOOPBACK) != 0
|| NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {
continue;
}
String mac = cfg.getHwaddr();
result.add(mac);
LOG.debug("mac: " + mac);
}
if(result.size()<1){
return null;
}
Properties props = System.getProperties();
String javaVersion = props.getProperty("java.version");
result.add(javaVersion);
LOG.debug("Java的运行环境版本： " + javaVersion);
String javaVMVersion = props.getProperty("java.vm.version");
result.add(javaVMVersion);
LOG.debug("Java的虚拟机实现版本： " + props.getProperty("java.vm.version"));
String osVersion = props.getProperty("os.version");
result.add(osVersion);
LOG.debug("操作系统的版本： " + props.getProperty("os.version"));
Mem mem = sigar.getMem();
// 内存总量
String totalMem = mem.getTotal() / 1024L + "K av";
LOG.debug("内存总量: " + totalMem);
result.add(totalMem);
LOG.debug("result: " + result);
String machineCode = getMD5(result.toString());
return machineCode;
} catch (Throwable ex) {
LOG.error("生成 "+osName+" 平台下的机器码失败", ex);
}
return null;
}
}
最后，我们分别看看不同平台的实现。
Windows:
/**
*在Windows平台上生成机器码
* @author 杨尚川
*/
public final class WindowsSequenceService extends AbstractSequenceService{
@Override
public String getSequence() {
String cpuID=getCPUSerial();
String hdID=getHDSerial("C");
if(cpuID==null || hdID==null){
return null;
}
String machineCode = getMD5(cpuID+hdID);
return machineCode;
}
/**
*
* @param drive 硬盘驱动器分区 如C,D
* @return 该分区的卷标
*/
private String getHDSerial(String drive) {
StringBuilder result = new StringBuilder();
try {
File file = File.createTempFile("tmp", ".vbs");
file.deleteOnExit();
try (FileWriter fw = new java.io.FileWriter(file)) {
String vbs = "Set objFSO = CreateObject(\"Scripting.FileSystemObject\")\n"
+ "Set colDrives = objFSO.Drives\n" + "Set objDrive = colDrives.item(\"" + drive + "\")\n"
+ "Wscript.Echo objDrive.SerialNumber";
fw.write(vbs);
}
Process p = Runtime.getRuntime().exec("cscript //NoLogo " + file.getPath());
try (BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()))) {
String line;
while ((line = input.readLine()) != null) {
result.append(line);
}
}
file.delete();
} catch (Throwable e) {
LOG.error("生成HDSerial失败", e);
}
if (result.length() < 1) {
LOG.info("无磁盘ID被读取");
}
return result.toString();
}
/**
* 获取CPU号,多CPU时,只取第一个
* @return
*/
private String getCPUSerial() {
StringBuilder result = new StringBuilder();
try {
File file = File.createTempFile("tmp", ".vbs");
file.deleteOnExit();
try (FileWriter fw = new FileWriter(file)) {
String vbs = "On Error Resume Next \r\n\r\n" + "strComputer = \".\" \r\n"
+ "Set objWMIService = GetObject(\"winmgmts:\" _ \r\n"
+ " & \"{impersonationLevel=impersonate}!\\\\\" & strComputer & \"\\root\\cimv2\") \r\n"
+ "Set colItems = objWMIService.ExecQuery(\"Select * from Win32_Processor\") \r\n "
+ "For Each objItem in colItems\r\n " + " Wscript.Echo objItem.ProcessorId \r\n "
+ " exit for ' do the first cpu only! \r\n" + "Next ";
fw.write(vbs);
}
Process p = Runtime.getRuntime().exec("cscript //NoLogo " + file.getPath());
try (BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()))) {
String line;
while ((line = input.readLine()) != null) {
result.append(line);
}
}
file.delete();
} catch (Throwable e) {
LOG.error("生成CPUSerial失败", e);
}
if (result.length() < 1) {
LOG.info("无CPU_ID被读取");
}
return result.toString();
}
public static void main(String[] args) {
SequenceService s = new WindowsSequenceService();
String seq = s.getSequence();
System.out.println(seq);
}
}
Linux:
/**
*在Linux平台上生成机器码
* @author 杨尚川
*/
public class LinuxSequenceService extends AbstractSequenceService{
@Override
public String getSequence() {
return getSigarSequence("linux");
}
public static void main(String[] args) {
SequenceService s = new LinuxSequenceService();
String seq = s.getSequence();
System.out.println(seq);
}
}
Mac OS X：
/**
*在Mac OS X平台上生成机器码
* @author 杨尚川
*/
public class MacSequenceService extends AbstractSequenceService{
@Override
public String getSequence() {
return getSigarSequence("mac");
}
public static void main(String[] args) {
SequenceService s = new MacSequenceService();
String seq = s.getSequence();
System.out.println(seq);
}
}
Solaris：
/**
*在Solaris平台上生成机器码
* @author 杨尚川
*/
public class SolarisSequenceService extends AbstractSequenceService{
@Override
public String getSequence() {
return getSigarSequence("solaris");
}
public static void main(String[] args) {
SequenceService s = new SolarisSequenceService();
String seq = s.getSequence();
System.out.println(seq);
}
}