① java存放ipv6的ip用什麼數據類型
強烈建議用String類型存儲。如果是int，long型轉String的話，用String.valueOf()。或者他們直接+「」就可已轉String了。用String類型來存儲數據以後更改格式也容易。
② JAVA求教SSH項目中如何獲取外來訪問者的IP地址
private String getIpAddr() {
String ipAddress = null;
//ipAddress = this.getRequest().getRemoteAddr();
ipAddress = this.getRequest().getHeader("x-forwarded-for");
if(ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = this.getRequest().getHeader("Proxy-Client-IP");
}
if(ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = this.getRequest().getHeader("WL-Proxy-Client-IP");
}
if(ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = this.getRequest().getRemoteAddr();
if(ipAddress.equals("127.0.0.1")){
//根據網卡取本機配置的IP
InetAddress inet=null;
try {
inet = InetAddress.getLocalHost();
} catch (UnknownHostException e) {
e.printStackTrace();
}
ipAddress= inet.getHostAddress();
}
}
//對於通過多個代理的情況，第一個IP為客戶端真實IP,多個IP按照','分割
if(ipAddress!=null && ipAddress.length()>15){ //"***.***.***.***".length() = 15
if(ipAddress.indexOf(",")>0){
ipAddress = ipAddress.substring(0,ipAddress.indexOf(","));
}
}
return ipAddress;
}
我才用的一個項目，request.getRemoteAddr();
不是很准確