Android 怎么获取手机端的ip地址

Android 怎么获取手机端的ip地址

在和服务器互动的时候，常常会用到客户端ip地址。当然，在服务器端可以获取请求过来的ip，在手机端，怎么获取自己的ip呢？请参阅下面的函数：
[java] public static String GetHostIp() {
try {
for (Enumeration en = NetworkInterface
.getNetworkInterfaces(); en.hasMoreElements();) {
NetworkInterface intf = en.nextElement();
for (Enumeration ipAddr = intf.getInetAddresses(); ipAddr
.hasMoreElements();) {
InetAddress inetAddress = ipAddr.nextElement();
if (!inetAddress.isLoopbackAddress()) {
return inetAddress.getHostAddress();
}
}
}
} catch (SocketException ex) {
} catch (Exception e) {
}
return null;
}
public static String GetHostIp() {
try {
for (Enumeration en = NetworkInterface
.getNetworkInterfaces(); en.hasMoreElements();) {
NetworkInterface intf = en.nextElement();
for (Enumeration ipAddr = intf.getInetAddresses(); ipAddr
.hasMoreElements();) {
InetAddress inetAddress = ipAddr.nextElement();
if (!inetAddress.isLoopbackAddress()) {
return inetAddress.getHostAddress();
}
}
}
} catch (SocketException ex) {
} catch (Exception e) {
}
return null;
}

其实，上面的方法通过java.net下的相关类获取ip的。主要用到的类有：java.net.NetworkInterface和java.net.InetAddress

1.使用wifi 首先设置用户权限 其次，代码如下 public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main); //获取wifi服务 wifimanager wifimanager = (wifimanager) getsystemservice(context.wifi_service); //判断wifi是否开启 if (!wifimanager.iswifienabled()) { wifimanager.setwifienabled(true); } wifiinfo wifiinfo = wifimanager.getconnectioninfo(); int ipaddress = wifiinfo.getipaddress(); string ip = inttoip(ipaddress); edittext et = (edittext)findviewbyid(r.id.edittext01); et.settext(ip); } private string inttoip(int i) { return (i & 0xff ) + "." + ((i >> 8 ) & 0xff) + "." + ((i >> 16 ) & 0xff) + "." + ( i >> 24 & 0xff) ; }