JAVA得到計算機所有網卡的MAC地址

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: #3f7f5f; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">/*</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: #3f7f5f; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">     * </SPAN>得到<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: #3f7f5f; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">mac</SPAN>地址結集合<SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: #3f7f5f; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">     */</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">    </SPAN>public<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> ArrayList<String> getMacs(){</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">       </SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">       ArrayList<String> macs = </SPAN>new<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> ArrayList<String>();</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">       </SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">       </SPAN>try<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> {</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">           InetAddress inetAddress;</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">           Enumeration<NetworkInterface> ifaces =</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">               NetworkInterface.getNetworkInterfaces();</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">           </SPAN>while<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> (ifaces.hasMoreElements()) {</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">               NetworkInterface iface = ifaces.nextElement();</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">               Enumeration<InetAddress> addrs = iface.getInetAddresses();</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                </SPAN>while<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> (addrs.hasMoreElements()) { </SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                    inetAddress = addrs.nextElement();</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                    </SPAN>if<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> (inetAddress </SPAN>instanceof<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> Inet4Address){</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                       NetworkInterface ni = NetworkInterface.getByInetAddress(inetAddress);</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                       </SPAN>if<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">(ni.getHardwareAddress() != </SPAN>null<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">){</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                           </SPAN>byte<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">[] mac = ni.getHardwareAddress();</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                           StringBuffer sb = </SPAN>new<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> StringBuffer();</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                            </SPAN>for<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> (</SPAN>int<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> i = 0; i < mac.</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: #0000c0; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">length</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">; i++) {</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                               String str = </SPAN>new<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> String().format(</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: #2a00ff; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">"%02X%s"</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">, mac[i], (i < mac.</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: #0000c0; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">length</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> - 1) ? </SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: #2a00ff; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">"-"</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> : </SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: #2a00ff; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">""</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">);</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                               sb.append(str);</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                            }</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                            macs.add(sb.toString());</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                       }</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                    }</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">                }</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">           }</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">       } </SPAN>catch<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> (SocketException e) {</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">           e.printStackTrace();</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">       }</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">       </SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">       </SPAN>return<SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"> macs;</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt"></SPAN></P>

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Courier New'; mso-font-kerning: 0pt">    }</SPAN></P>

如果想得到網卡的其他信息，請參考API