Question

java 怎么获取客户端的ip

Answer 1

　　

public String getIpAddr(HttpServletRequest request) {  
		String ip = request.getHeader("X-Real-IP");
		  if(!StringUtils.isBlank(ip)&&!"unknown".equalsIgnoreCase(ip))
		  {
			  return ip;
		  }
		  ip = request.getHeader("X-Forwarded-For");
		  if(!StringUtils.isBlank(ip)&& !"unknown".equalsIgnoreCase(ip))
		  {
			  int index = ip.indexOf(',');
			  if(index != -1){
				  return ip.substring(0, index);
			  }else{
				  return ip;
			  }
		  }
          return request.getRemoteAddr();
	}

 不过获取本机的ip地址 会变成 0.0.0.0.0.1

Answer 2

是什么样的环境，是WEB中、还是APPLICATION 的

Answer 3

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();
}