/** *构造函数. */ privateInternetProtocol(){ } /** *获取客户端IP地址.
*支持多级反向代理 * *@paramrequest *HttpServletRequest *@return客户端真实IP地址 */ publicstaticStringgetRemoteAddr(finalHttpServletRequestrequest){ try{ StringremoteAddr=request.getHeader("X-Forwarded-For"); //如果通过多级反向代理，X-Forwarded-For的值不止一个，而是一串用逗号分隔的IP值，此时取X-Forwarded-For中第一个非unknown的有效IP字符串 if(isEffective(remoteAddr)&&(remoteAddr.indexOf(",")>-1)){ String[]array=remoteAddr.split(","); for(Stringelement:array){ if(isEffective(element)){ remoteAddr=element; break; } } } if(!isEffective(remoteAddr)){ remoteAddr=request.getHeader("X-Real-IP"); } if(!isEffective(remoteAddr)){ remoteAddr=request.getRemoteAddr(); } returnremoteAddr; }catch(Exceptione){ log.error("getromoteiperror,errormessage:"+e.getMessage()); return""; } } /** *获取客户端源端口 *@paramrequest *@return */ publicstaticLonggetRemotePort(finalHttpServletRequestrequest){ try{ Stringport=request.getHeader("remote-port"); if(StringUtil.isNotEmptyString(port)){ try{ returnLong.parseLong(port); }catch(NumberFormatExceptionex){ log.error("convertporttolongerror,port: "+port); return0l; } }else{ return0l; } }catch(Exceptione){ log.error("getromoteporterror,errormessage:"+e.getMessage()); return0l; } }