NetUtil.java
3.0 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
package cn.living.sharecenter.utils;
import org.springframework.util.StringUtils;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
public class NetUtil {
/**
* 获取请求主机IP地址,如果通过代理进来，则透过防火墙获取真实IP地址;
*
* @param request
* @return
* @throws IOException
*/
public final static String getIpAddress(HttpServletRequest request) throws IOException {
String ipAddress = request.getHeader("X-Real-IP");
// System.out.println("X-Real-IP : "+ipAddress);
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getHeader("X-Forwarded-For");
// System.out.println("X-Forwarded-For : "+ipAddress);
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getHeader("Proxy-Client-IP");
// System.out.println("Proxy-Client-IP : "+ipAddress);
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getHeader("WL-Proxy-Client-IP");
// System.out.println("WL-Proxy-Client-IP : "+ipAddress);
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getHeader("HTTP_CLIENT_IP");
// System.out.println("HTTP_CLIENT_IP : "+ipAddress);
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getHeader("HTTP_X_FORWARDED_FOR");
// System.out.println("HTTP_X_FORWARDED_FOR : "+ipAddress);
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getRemoteAddr();
// System.out.println("request.getRemoteAddr() : "+ipAddress);
if (ipAddress.equals("127.0.0.1") || ipAddress.equals("0:0:0:0:0:0:0:1")) {
// 根据网卡取本机配置的IP
InetAddress inet = null;
try {
inet = InetAddress.getLocalHost();
ipAddress = inet.getHostAddress();
// System.out.println("inet.getHostAddress() : "+ipAddress);
} catch (UnknownHostException e) {
ipAddress = "unknownIp";
}
}
}
// 对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
if (ipAddress != null && ipAddress.length() > 15) { // "***.***.***.***".length() = 15
if (ipAddress.indexOf(",") > 0) {
ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
}
}
if (StringUtils.isEmpty(ipAddress)) {
ipAddress = "unknownIp";
}
// System.out.println("ipAddress : "+ipAddress);
return ipAddress;
}
}