java 得到ip
作者:互联网
java 得到ip
1、不好使
String a=request2.getHeader(“x-forwarded-for”);
String a1=request2.getHeader(“X-Real-IP”) ;
String a2=request2.getRemoteAddr();
2、不好使
String a3=getIpAddr(request2);
3、有点用
InetAddress address = InetAddress.getLocalHost();
String a4= address.getHostAddress();
/**
* 获取用户真实IP地址,不使用request.getRemoteAddr()的原因是有可能用户使用了代理软件方式避免真实IP地址,
* 可是,如果通过了多级反向代理的话,X-Forwarded-For的值并不止一个,而是一串IP值
*
* @return ip
*/
private String getIpAddr(HttpServletRequest request) {
String ip = request.getHeader("x-forwarded-for");
System.out.println("x-forwarded-for ip: " + ip);
if (ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)) {
// 多次反向代理后会有多个ip值,第一个ip才是真实ip
if( ip.indexOf(",")!=-1 ){
ip = ip.split(",")[0];
}
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("Proxy-Client-IP");
System.out.println("Proxy-Client-IP ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
System.out.println("WL-Proxy-Client-IP ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_CLIENT_IP");
System.out.println("HTTP_CLIENT_IP ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_X_FORWARDED_FOR");
System.out.println("HTTP_X_FORWARDED_FOR ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("X-Real-IP");
System.out.println("X-Real-IP ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
System.out.println("getRemoteAddr ip: " + ip);
}
System.out.println("获取客户端ip: " + ip);
return ip;
}
java 得到mac 地址
标签:java,ip,getHeader,得到,request,System,IP,out 来源: https://blog.csdn.net/liuyuqi176/article/details/120159037