blocks|key|1155894|text|通常使用与网卡相关联的MAC地址。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1155895|在Java+6中，可以通过以下API获得该地址：|1155896|Java+6+Docs+for+Hardware+Address|offset|length|1155897|我还没有在Java中使用过它，但对于其他网络识别应用程序，它很有帮助。|1155898|entityMap|0|LINK|mutability|MUTABLE|url|http://java.sun.com/javase/6/docs/api/java/net/NetworkInterface.html#getHardwareAddress%2528%2529^0|0|0|0|W|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$F|U|G|V|1|W]]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

It is common to use the MAC address is associated with the network card.

The address is available in Java 6 through through the following API:

<a href="http://java.sun.com/javase/6/docs/api/java/net/NetworkInterface.html#getHardwareAddress%28%29" rel="noreferrer">Java 6 Docs for Hardware Address</a>

I haven't used it in Java, but for other network identification applications it has been helpful.

blocks|key|1370995|text|你想用这个唯一的ID做什么？也许你不需要这个ID就可以做你想做的事。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1370996|MAC地址可能是一种选择，但这不是可信的唯一ID，因为用户可以更改计算机的MAC地址。|1370997|在此link上检查主板或处理器ID。|offset|length|1370998|entityMap|0|LINK|mutability|MUTABLE|url|http://www.rgagnon.com/javadetails/java-0580.html^0|0|0|2|4|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

What do you want to do with this unique ID? Maybe you can do what you want without this ID.

The MAC address maybe is one option but this is not an trusted unique ID because the user can change the MAC address of a computer.

To get the motherboard or processor ID check on this <a href="http://www.rgagnon.com/javadetails/java-0580.html" rel="noreferrer">link</a>.

blocks|key|1156029|text|我觉得你应该看看这个link+..。您可以使用多个标识符生成混合密钥，例如mac%2Bos%2Bhostname%2Bcpu+id%2Bmotherboard+serial+number.|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1156030|entityMap|0|LINK|mutability|MUTABLE|url|http://www.velocityreviews.com/forums/t139703-how-do-i-retrieve-a-unique-computer-id-from-java.html|1|http://www.rgagnon.com/javadetails/java-0580.html|2^0|A|4|0|1H|6|1|1O|P|2|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@$A|P|B|Q|1|R]|$A|S|B|T|1|U]|$A|V|B|W|1|X]]|C|$]]|$1|D|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]|N|$5|G|H|I|C|$J|M]]]]

I think you should look at this <a href="http://www.velocityreviews.com/forums/t139703-how-do-i-retrieve-a-unique-computer-id-from-java.html" rel="nofollow noreferrer">link</a> ... you can make a mixed key using several
identifiers such as mac+os+hostname+<a href="http://www.rgagnon.com/javadetails/java-0580.html" rel="nofollow noreferrer">cpu id</a>+<a href="http://www.rgagnon.com/javadetails/java-0580.html" rel="nofollow noreferrer">motherboard serial number</a>.

blocks|key|1371130|text|仅在Windows上，您可以通过诸如JACOB之类的COM桥使用WMI获取主板ID。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1371131|示例：|1371132|import+java.util.Enumeration;
import+com.jacob.activeX.ActiveXComponent;
import+com.jacob.com.ComThread;
import+com.jacob.com.EnumVariant;
import+com.jacob.com.Variant;

public+class+Test+{
++++public+static+void+main(String[]+args)+{
++++++++ComThread.InitMTA();
++++++++try+{
++++++++++++ActiveXComponent+wmi+=+new+ActiveXComponent("winmgmts:\\\\.");
++++++++++++Variant+instances+=+wmi.invoke("InstancesOf",+"Win32_BaseBoard");
++++++++++++Enumeration<Variant>+en+=+new+EnumVariant(instances.getDispatch());
++++++++++++while+(en.hasMoreElements())
++++++++++++{
++++++++++++++++ActiveXComponent+bb+=+new+ActiveXComponent(en.nextElement().getDispatch());
++++++++++++++++System.out.println(bb.getPropertyAsString("SerialNumber"));
++++++++++++++++break;
++++++++++++}
++++++++}+finally+{
++++++++++++ComThread.Release();
++++++++}
++++}
}|code-block|syntax|javascript|1371133|如果您选择使用MAC地址来标识计算机，则可以使用WMI来确定接口是否通过USB连接(如果您希望排除USB适配器)。|1371134|也可以通过WMI获取硬盘ID，但这是不可靠的。|1371135|entityMap|0|LINK|mutability|MUTABLE|url|http://sourceforge.net/projects/jacob-project/|1|http://msdn.microsoft.com/en-us/library/aa394582%2528VS.85%2529.aspx^0|I|5|0|W|3|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]|$A|12|B|13|1|14]]|C|$]]|$1|D|3|E|5|6|7|15|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|16|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|17|8|@]|9|@]|C|$]]|$1|M|3|N|5|6|7|18|8|@]|9|@]|C|$]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]|W|$5|R|S|T|C|$U|X]]]]

On Windows only, you can get the motherboard ID using <a href="http://msdn.microsoft.com/en-us/library/aa394582%28VS.85%29.aspx" rel="noreferrer">WMI</a>, through a COM bridge such as <a href="http://sourceforge.net/projects/jacob-project/" rel="noreferrer">JACOB</a>.

Example:

<pre><code>import java.util.Enumeration;
import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.ComThread;
import com.jacob.com.EnumVariant;
import com.jacob.com.Variant;

public class Test {
 public static void main(String[] args) {
 ComThread.InitMTA();
 try {
 ActiveXComponent wmi = new ActiveXComponent("winmgmts:\\\\.");
 Variant instances = wmi.invoke("InstancesOf", "Win32_BaseBoard");
 Enumeration&lt;Variant&gt; en = new EnumVariant(instances.getDispatch());
 while (en.hasMoreElements())
 {
 ActiveXComponent bb = new ActiveXComponent(en.nextElement().getDispatch());
 System.out.println(bb.getPropertyAsString("SerialNumber"));
 break;
 }
 } finally {
 ComThread.Release();
 }
 }
}
</code></pre>

And if you choose to use the MAC address to identify the machine, you can use WMI to determine whether an interface is connected via USB (if you want to exclude USB adapters.)

It's also possible to get a hard drive ID via WMI but this is unreliable.

blocks|key|1371205|text|不知道你所有的需求。例如，您是尝试从世界上所有计算机中唯一标识一台计算机，还是仅尝试从应用程序的一组用户中唯一标识一台计算机。另外，你能在系统上创建文件吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1371206|如果您能够创建一个文件。您可以创建一个文件，并使用该文件的创建时间作为您的唯一id。如果您在用户空间中创建它，那么它将唯一地标识特定机器上的应用程序的用户。如果你在全局的某个地方创建了它，那么它可以唯一地标识机器。|1371207|再说一次，和大多数事情一样，多快就足够快..或者在这种情况下，如何独一无二就足够独特了。|1371208|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Not Knowing all of your requirements. For example, are you trying to uniquely identify a computer from all of the computers in the world, or are you just trying to uniquely identify a computer from a set of users of your application. Also, can you create files on the system?

If you are able to create a file. You could create a file and use the creation time of the file as your unique id. If you create it in user space then it would uniquely identify a user of your application on a particular machine. If you created it somewhere global then it could uniquely identify the machine.

Again, as most things, How fast is fast enough.. or in this case, how unique is unique enough.

blocks|key|1371288|text|在我为发行版编写的java程序中，我使用了主板序列号(这是我相信windows使用的序列号)；然而，这只在windows上起作用，因为我的函数创建了一个临时VB脚本，它使用WMI来检索该值。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1371289|public+static+String+getMotherboardSerial()+{
++++++String+result+=+"";
++++++++try+{
++++++++++File+file+=+File.createTempFile("GetMBSerial",".vbs");
++++++++++file.deleteOnExit();
++++++++++FileWriter+fw+=+new+FileWriter(file);

++++++++++String+vbs+=
+++++++++++++"Set+objWMIService+=+GetObject(\"winmgmts:\\\\.\\root\\cimv2\")\n"
++++++++++++%2B+"Set+colItems+=+objWMIService.ExecQuery+_+\n"
++++++++++++%2B+"+++(\"Select+*+from+Win32_ComputerSystemProduct\")+\n"
++++++++++++%2B+"For+Each+objItem+in+colItems+\n"
++++++++++++%2B+"++++Wscript.Echo+objItem.IdentifyingNumber+\n"
++++++++++++%2B+"Next+\n";

++++++++++fw.write(vbs);
++++++++++fw.close();
++++++++++Process+gWMI+=+Runtime.getRuntime().exec("cscript+//NoLogo+"+%2B+file.getPath());
++++++++++BufferedReader+input+=+new+BufferedReader(new+InputStreamReader(gWMI.getInputStream()));
++++++++++String+line;
++++++++++while+((line+=+input.readLine())+!=+null)+{
+++++++++++++result+%2B=+line;
+++++++++++++System.out.println(line);
++++++++++}
++++++++++input.close();
++++++++}
++++++++catch(Exception+e){
++++++++++++e.printStackTrace();
++++++++}
++++++++result+=+result.trim();
++++++++return+result;
++++++}|code-block|syntax|javascript|1371290|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In the java programs I have written for release I used the motherboard serial number (which is what I beleive windows use); however, this only works on windows as my function creates a temporary VB script which uses the WMI to retrieve the value.

<pre><code>public static String getMotherboardSerial() {
 String result = "";
 try {
 File file = File.createTempFile("GetMBSerial",".vbs");
 file.deleteOnExit();
 FileWriter fw = new FileWriter(file);

 String vbs =
 "Set objWMIService = GetObject(\"winmgmts:\\\\.\\root\\cimv2\")\n"
 + "Set colItems = objWMIService.ExecQuery _ \n"
 + " (\"Select * from Win32_ComputerSystemProduct\") \n"
 + "For Each objItem in colItems \n"
 + " Wscript.Echo objItem.IdentifyingNumber \n"
 + "Next \n";

 fw.write(vbs);
 fw.close();
 Process gWMI = Runtime.getRuntime().exec("cscript //NoLogo " + file.getPath());
 BufferedReader input = new BufferedReader(new InputStreamReader(gWMI.getInputStream()));
 String line;
 while ((line = input.readLine()) != null) {
 result += line;
 System.out.println(line);
 }
 input.close();
 }
 catch(Exception e){
 e.printStackTrace();
 }
 result = result.trim();
 return result;
 }
</code></pre>

blocks|key|1371367|text|用于唯一地标识windows计算机。当你使用wmic的时候，一定要有一个替代方法的策略。由于"wmic+bios+get+serialnumber“可能不是在所有机器上都有效，因此您可能需要使用其他方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1371368|#+Get+serial+number+from+bios
wmic+bios+get+serialnumber
#+If+previous+fails,+get+UUID
wmic+csproduct+get+UUID
#+If+previous+fails,+get+diskdrive+serialnumber
wmic+DISKDRIVE+get+SerialNumber|code-block|syntax|javascript|1371369|资源:唯一标识Windows计算机http://www.nextofwindows.com/the-best-way-to-uniquely-identify-a-windows-machine/的最佳方法|offset|length|1371370|entityMap|0|LINK|mutability|MUTABLE|url|http://www.nextofwindows.com/the-best-way-to-uniquely-identify-a-windows-machine/^0|0|0|H|29|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

For identifying a windows machine uniquely.
Make sure when you use wmic to have a strategy of alternative methods. Since "wmic bios get serialnumber" might not work on all machines, you might need to have additional methods:

<pre><code># Get serial number from bios
wmic bios get serialnumber
# If previous fails, get UUID
wmic csproduct get UUID
# If previous fails, get diskdrive serialnumber
wmic DISKDRIVE get SerialNumber
</code></pre>

Resources:
The Best Way To Uniquely Identify A Windows Machine
<a href="http://www.nextofwindows.com/the-best-way-to-uniquely-identify-a-windows-machine/" rel="nofollow">http://www.nextofwindows.com/the-best-way-to-uniquely-identify-a-windows-machine/</a>

I'd like to get an id unique to a computer with Java, on Windows, MacOS and, if possible, Linux. It could be a disk UUID, motherboard S/N...

<code>Runtime.getRuntime().exec</code> can be used (it is not an applet).

Ideas?

How to get a unique computer identifier in Java (like disk ID or motherboard ID)?

Windows

Linux

MacOS

Java

我想要一台装有Java的电脑的唯一id，在Windows，MacOS上，如果可能的话，还有Linux。可能是磁盘UUID，主板序列号...可以使用Runtime.getRuntime().exec (它不是小程序)。想法？

问如何在Java中获得唯一的计算机标识符(如磁盘ID或主板ID)？
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