通過(guò)ip獲取指定ip地址的mac地址，ip可以通過(guò)請(qǐng)求request獲取，
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request.getRemoteAddr()；
(當(dāng)然獲取ip也不是在任何情況下都有效的)
通過(guò)了Apache,Squid等反向代理軟件就不能獲取到客戶端的真實(shí)IP地址。
您也許需要通過(guò)其他的方式獲取，(見(jiàn)附)
//獲取mac如下 (nbtstat -A IPAddress是對(duì)給定的IP地址解析其主機(jī)名。如果不能正常解析它的主機(jī)
//名的話，有可能是防火墻屏蔽了。也可能是在DNS中將NetBios 解析選項(xiàng)屏蔽了。)
public String getMACAddress(String ip){
String str = "";
String macAddress = "";
try {
Process p = Runtime.getRuntime().exec("nbtstat -A " + ip);
InputStreamReader ir = new InputStreamReader(p.getInputStream());
LineNumberReader input = new LineNumberReader(ir);
for (int i = 1; i 100; i++) {
str = input.readLine();
if (str != null) {
if (str.indexOf("MAC Address") 1) {
macAddress = str.substring(str.indexOf("MAC Address") + 14, str.length());
break;
}
if (str.indexOf("MAC Address") 1) {
macAddress = str.substring(str.indexOf("MAC 地址") + 14, str.length());
break;
}
//以上有個(gè)判斷，不同系統(tǒng)cmd命令執(zhí)行的返回結(jié)果展示方式不一樣，我測(cè)試的win7是MAC 地址
//所以又第二個(gè)if判斷 你可先在你機(jī)器上cmd測(cè)試下nbtstat -A 命令 當(dāng)然得有一個(gè)你可以ping通的
//網(wǎng)絡(luò)ip地址,然后根據(jù)你得到的結(jié)果中mac地址顯示方式來(lái)確定這個(gè)循環(huán)取值
}
}
} catch (IOException e) {
e.printStackTrace(System.out);
}
return macAddress;
}
附：
通過(guò)代理了的客戶端ip地址獲取方式
于是可得出獲得客戶端真實(shí)IP地址的方法一：
public String getRemortIP(HttpServletRequest request) {
if (request.getHeader("x-forwarded-for") == null) {
return request.getRemoteAddr();
}
return request.getHeader("x-forwarded-for");
}
獲得客戶端真實(shí)IP地址的方法二：
public String getIpAddr(HttpServletRequest request) {
String ip = request.getHeader("x-forwarded-for");
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
return ip;
}
可是，如果通過(guò)了多級(jí)反向代理的話，X-Forwarded-For的值并不止一個(gè)，而是一串IP值，究竟哪個(gè)才是真正的用戶端的真實(shí)IP呢？
答案是取X-Forwarded-For中第一個(gè)非unknown的有效IP字符串。如：
X-Forwarded-For：192.168.1.110, 192.168.1.120, 192.168.1.130, 192.168.1.100
用戶真實(shí)IP為： 192.168.1.110
//?從EML文件得到MimeMessage對(duì)象
MimeMessage?message?=?new?MimeMessage(session,?new?FileInputStream(emlFile));
public?static?String?getMailSubject(Message?message)?throws?Exception?{
return?MimeUtility.decodeText(message.getSubject());
}
public?static?String?getMailSender(Message?message)?throws?Exception?{
String?emailSender?=?null;
Address[]?addresses?=?message.getFrom();
if?(addresses?==?null?||?addresses.length??1)?{
throw?new?IllegalArgumentException("該郵件沒(méi)有發(fā)件人");
}
//?獲得發(fā)件人
InternetAddress?address?=?(InternetAddress)?addresses[0];
String?senderName?=?address.getPersonal();
if?(senderName?!=?null)?{
senderName?=?MimeUtility.decodeText(senderName);
emailSender?=?senderName?+?""?+?address.getAddress()?+?"";
}?else?{
senderName?=?address.getAddress();
}
return?emailSender;
}
public?static?String?getMailRecipients(Message?message,?Message.RecipientType?recipientType)?throws?Exception?{
StringBuilder?builder?=?new?StringBuilder();
Address[]?addresses?=?null;
if?(recipientType?==?null)?{
addresses?=?message.getAllRecipients();
}?else?{
addresses?=?message.getRecipients(recipientType);
}
if?(addresses?==?null?||?addresses.length??1)?{
throw?new?IllegalArgumentException("該郵件沒(méi)有收件人");
}
for?(Address?address?:?addresses)?{
InternetAddress?iAddress?=?(InternetAddress)?address;
builder.append(iAddress.toUnicodeString()).append(",?");
}
return?builder.deleteCharAt(builder.length()?-?1).toString();
}
public?static?String?getMailSendDate(Message?message,?String?pattern)?throws?Exception?{
String?sendDateString?=?null;
if?(pattern?==?null?||?"".equals(pattern.trim()))?{
pattern?=?"yyyy年MM月dd日?E?HH:mm";
}
Date?sendDate?=?message.getSentDate();
sendDateString?=?new?SimpleDateFormat(pattern).format(sendDate);
return?sendDateString;
}
public?static?boolean?containsAttachment(Part?part)?throws?Exception?{
boolean?flag?=?false;
if?(part?!=?null)?{
if?(part.isMimeType("multipart/*"))?{
MimeMultipart?mp?=?(MimeMultipart)?part.getContent();
for?(int?i?=?0;?i??mp.getCount();?i++)?{
BodyPart?bodyPart?=?mp.getBodyPart(i);
String?disposition?=?bodyPart.getDisposition();
if?(disposition?!=?null??(Part.ATTACHMENT.equalsIgnoreCase(disposition)
||?Part.INLINE.equalsIgnoreCase(disposition)))?{
flag?=?true;
}?else?if?(bodyPart.isMimeType("multipart/*"))?{
flag?=?containsAttachment(bodyPart);
}?else?{
String?contentType?=?bodyPart.getContentType();
if?(contentType.indexOf("application")?!=?-1)?{
flag?=?true;
}
if?(contentType.indexOf("name")?!=?-1)?{
flag?=?true;
}
}
if?(flag)
break;
}
}?else?if?(part.isMimeType("message/rfc822"))?{
flag?=?containsAttachment((Part)?part.getContent());
}
}
return?flag;
}
public?static?boolean?isSeen(Message?message)?throws?Exception?{
if?(message?==?null)?{
throw?new?MessagingException("Message?is?empty");
}
return?message.getFlags().contains(Flags.Flag.SEEN);
}
public?static?boolean?isReplaySign(Message?message)?throws?Exception?{
if?(message?==?null)?{
throw?new?MessagingException("Message?is?empty");
}
boolean?replaySign?=?false;
String[]?headers?=?message.getHeader("Disposition-Notification-To");
if?(headers?!=?null??headers.length??0)?{
replaySign?=?true;
}
return?replaySign;
}
public?static?String?getMailPriority(Message?message)?throws?Exception?{
if?(message?==?null)?{
throw?new?MessagingException("Message?is?empty");
}
String?priority?=?"普通";
String[]?headers?=?message.getHeader("X-Priority");
if?(headers?!=?null??headers.length??0)?{
String?mailPriority?=?headers[0];
if?(mailPriority.indexOf("1")?!=?-1?||?mailPriority.indexOf("High")?!=?-1)?{
priority?=?"緊急";
}?else?if?(mailPriority.indexOf("5")?!=?-1?||?mailPriority.indexOf("Low")?!=?-1)?{
priority?=?"低";
}?else?{
priority?=?"普通";?//?3或者Normal;
}
}
return?priority;
}
public?static?void?getMailTextContent(Part?part,?StringBuilder?content)?throws?Exception?{
if?(part?==?null)?{
throw?new?MessagingException("Message?content?is?empty");
}
boolean?containsTextInAttachment?=?part.getContentType().indexOf("name")??0;
if?(part.isMimeType("text/*")??containsTextInAttachment)?{
content.append(part.getContent().toString());
}?else?if?(part.isMimeType("message/rfc822"))?{
getMailTextContent((Part)?part.getContent(),?content);
}?else?if?(part.isMimeType("multipart/*"))?{
Multipart?mp?=?(Multipart)?part.getContent();
for?(int?i?=?0;?i??mp.getCount();?i++)?{
BodyPart?bodyPart?=?mp.getBodyPart(i);
getMailTextContent(bodyPart,?content);
}
}?else?if?(part.isMimeType("image/*"))?{
//?TODO?part.getInputStream()獲得輸入流然后輸出到指定的目錄
}?else?{
//?TODO?其它類(lèi)型的contentType,?未做處理,?直接輸出
content.append(part.getContent().toString());
}
}
public?static?void?saveAttachment(Part?part,?String?destDir)?throws?Exception?{
if?(part?==?null)?{
throw?new?MessagingException("part?is?empty");
}
//?復(fù)雜的郵件包含多個(gè)郵件體
if?(part.isMimeType("multipart/*"))?{
Multipart?mp?=?(Multipart)?part.getContent();
//?遍歷每一個(gè)郵件體
for?(int?i?=?0;?i??mp.getCount();?i++)?{
BodyPart?bodyPart?=?mp.getBodyPart(i);
//?bodyPart也可能有多個(gè)郵件體組成
String?disposition?=?bodyPart.getDisposition();
if?(disposition?==?null??(Part.ATTACHMENT.equalsIgnoreCase(disposition)
||?Part.INLINE.equalsIgnoreCase(disposition)))?{
InputStream?in?=?bodyPart.getInputStream();
saveFile(in,?destDir,?decodeText(bodyPart.getFileName()));
}?else?if?(bodyPart.isMimeType("multipart/*"))?{
saveAttachment(bodyPart,?destDir);
}?else?{
String?contentType?=?bodyPart.getContentType();
if?(contentType.indexOf("name")?!=?-1?||?contentType.indexOf("application")?!=?-1)?{
saveFile(bodyPart.getInputStream(),?destDir,?decodeText(bodyPart.getFileName()));
}
}
}
}?else?if?(part.isMimeType("message/rfc822"))?{
saveAttachment((Part)?part.getContent(),?destDir);
}
}
public?static?void?saveFile(InputStream?in,?String?destDir,?String?fileName)?throws?Exception?{
FileOutputStream?out?=?new?FileOutputStream(new?File(destDir?+?fileName));
byte[]?buffer?=?new?byte[1024];
int?length?=?0;
while?((length?=?in.read(buffer))?!=?-1)?{
out.write(buffer,?0,?length);
}
out.close();
in.close();
}
public?static?String?decodeText(String?encodedText)?throws?Exception?{
if?(encodedText?==?null?||?"".equals(encodedText.trim()))?{
return?"";
}?else?{
return?MimeUtility.decodeText(encodedText);
}
}
設(shè)u和v是類(lèi)A的兩個(gè)對(duì)象——u和v是類(lèi)A的兩個(gè)實(shí)例？
u==v
的意思是判斷u和v是否是同一個(gè)實(shí)例。
如果返回true，表示u和v是A的同一個(gè)實(shí)例。
如果返回false，表示u和v是A的兩個(gè)不同實(shí)例。
這個(gè)我猜的，
一般省 - 市 - 縣/區(qū) 這些三級(jí)聯(lián)動(dòng)
然后就是具體的地址。
這些地址有可能是它們買(mǎi)的，也有可能是自己積累過(guò)來(lái)的。
例如用戶填寫(xiě)了一個(gè)地址，只要這個(gè)訂單成功送達(dá)，這個(gè)地址就進(jìn)入有效庫(kù)。京東用戶那么多，數(shù)據(jù)積累量肯定沒(méi)問(wèn)題。
private String s = "";//這個(gè)就是要求的a[12]
private ListString getTestAddress(){//這個(gè)測(cè)試方法改成你解析IP的方法
ListString address = new ArrayListString();
address.add("192.168.1.60");
address.add("192.168.1.61");
address.add("192.168.2.60");
address.add("192.168.1.60");
address.add("192.168.1.63");
address.add("192.168.1.64");
address.add("192.168.1.65");
address.add("192.168.2.60");
address.add("192.168.1.60");
return address;
}
private MapString, Integer getAddressNumber(){//把每一個(gè)ip跟其數(shù)量放入映射中，如果數(shù)量為0，表示無(wú)重復(fù)IP
MapString, Integer map = new HashMapString, Integer();
ListString address = getTestAddress();
for(int i=0; iaddress.size(); i++){
String ip1 = address.get(i);
s = s + ip1 + ",";//將IP組合成字符串，然后賦值給a[12]
int number = 0;
for(int j=address.size()-1; j i; j--){
String ip2 = address.get(j);
if(ip1.equals(ip2))
number += 1;
}
map.put(ip1, number);
}
return map;
}
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