在服务器端获得客户端ip怎么获得
我知道一个 方法request.getRemoteAddr()
可是我不知道 request 从哪里加进来
有没知道的 写在普通类里
有没谁知道啊
或者有没谁有其他方法啊! 急啊!!!!!1
我知道一个 方法request.getRemoteAddr()
可是我不知道 request 从哪里加进来
有没知道的 写在普通类里
有没谁知道啊
或者有没谁有其他方法啊! 急啊!!!!!1
解决方案 »
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/**
*
*/
package com.ccit.ejtg.util;import javax.servlet.http.HttpServletRequest;/**
* @描述 获得IP4
* @author XYY
* @time 2010-3-22上午09:06:14
* @version 1.0
* @类名 IP4.java
*/
public class IP4 { public static String getIP4(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; }
}
使用"request.getRemoteAddr()"只能获得上一次请求机器的地址。
在实际的系统使用时,你的项目服务器前端可以还会有一些防火墙、WEB服务器缓存等等,
如是使用request.getRemoteAddr()就只能获得防火墙或是WEB服务器的IP了。
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.getHeader("HTTP_CLIENT_IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_X_FORWARDED_FOR");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
return ip;
}
request.get……
* 获取客户端真实IP地址(注意:如果通过Squid反向代理软件,需更改squid.conf配置文件forwarded_for项默认是为on,
* 否则获取到的IP为unknown)
* @param request
* @return
*/
@SuppressWarnings("rawtypes")
private String getIpAddr(HttpServletRequest request) {
log.debug("===================================================="); if(log.isDebugEnabled()){
StringBuffer buf = new StringBuffer("all head info:\n");
Enumeration enumeration = request.getHeaderNames();
while(enumeration.hasMoreElements()){
Object head = enumeration.nextElement();
if(null != head){
String value = request.getHeader(String.valueOf(head));
buf.append(head + "=" + value + "\n");
}
}
log.debug(buf.toString());
}
String ip = request.getHeader("x-forwarded-for");
log.debug("request.getHeader(\"x-forwarded-for\")=" + ip); if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("X-Forwarded-For");
log.debug("request.getHeader(\"X-Forwarded-For\")=" + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("Proxy-Client-IP");
log.debug("request.getHeader(\"Proxy-Client-IP\")=" + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
log.debug("request.getHeader(\"WL-Proxy-Client-IP\")=" + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_CLIENT_IP");
log.debug("request.getHeader(\"HTTP_CLIENT_IP\")=" + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_X_FORWARDED_FOR");
log.debug("request.getHeader(\"HTTP_X_FORWARDED_FOR\")=" + ip);
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
log.debug("request.getRemoteAddr()=" + ip);
}
if(null != ip && ip.indexOf(',') != -1){
//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
//取X-Forwarded-For中第一个非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
//用户真实IP为: 192.168.1.110
//注意:当访问地址为 localhost 时 地址格式为 0:0:0:0:0:0:1
log.debug("ip=" + ip);
String[] ips = ip.split(",");
for (int i = 0; i < ips.length; i++) {
if(null != ips[i] && !"unknown".equalsIgnoreCase(ips[i])){
ip = ips[i];
break;
}
}
if("0:0:0:0:0:0:1".equals(ip)){
log.warn("由于客户端访问地址使用 localhost,获取客户端真实IP地址错误,请使用IP方式访问");
}
}
if("unknown".equalsIgnoreCase(ip)){
log.warn("由于客户端通过Squid反向代理软件访问,获取客户端真实IP地址错误,请更改squid.conf配置文件forwarded_for项默认是为on解决");
}
log.debug("====================================================");
return ip;
}
2012-07-12 16:44:30,859 DEBUG (Config.java:153) - ====================================================
2012-07-12 16:44:30,860 DEBUG (Config.java:165) - all head info:
x-requested-with=XMLHttpRequest
accept-language=zh-cn
referer=http://++++++++++++++++++++++++
accept=application/json, text/javascript, */*; q=0.01
content-type=application/x-www-form-urlencoded
accept-encoding=gzip, deflate
user-agent=Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
host=+++++++++++++++++++++++++++
content-length=37
connection=Keep-Alive
cache-control=no-cache
cookie=login_code=sa; JSESSIONID=189E566F6AB222FEF6B9A3DD601F3F64
2012-07-12 16:44:30,861 DEBUG (Config.java:169) - request.getHeader("x-forwarded-for")=null
2012-07-12 16:44:30,862 DEBUG (Config.java:173) - request.getHeader("X-Forwarded-For")=null
2012-07-12 16:44:30,862 DEBUG (Config.java:178) - request.getHeader("Proxy-Client-IP")=null
2012-07-12 16:44:30,863 DEBUG (Config.java:183) - request.getHeader("WL-Proxy-Client-IP")=null
2012-07-12 16:44:30,864 DEBUG (Config.java:188) - request.getHeader("HTTP_CLIENT_IP")=null
2012-07-12 16:44:30,865 DEBUG (Config.java:193) - request.getHeader("HTTP_X_FORWARDED_FOR")=null
2012-07-12 16:44:30,866 DEBUG (Config.java:198) - request.getRemoteAddr()=133.160.93.228
2012-07-12 16:44:30,866 DEBUG (Config.java:223) - ====================================================