方法是利用网址：http://pv.sohu.com/cityjson?ie=utf-8，返回String类型的ip地址：
public static String getNetIp() {
String ip = ""
;
InputStream inputStream =
null;
try {
URL infoUrl =
new URL("http://pv.sohu.com/cityjson?ie=utf-8"
);
URLConnection connection =
infoUrl.openConnection();
HttpURLConnection httpConnection =
(HttpURLConnection) connection;
int responseCode =
httpConnection.getResponseCode();
if (responseCode ==
HttpURLConnection.HTTP_OK) {
inputStream =
httpConnection.getInputStream();
BufferedReader reader =
new BufferedReader(
new InputStreamReader(inputStream, "gb2312"
));
StringBuilder builder =
new StringBuilder();
String line =
null;
while ((line = reader.readLine()) !=
null) {
builder.append(line);
}
inputStream.close();
int start1=builder.indexOf(":"
);
String str1=builder.substring(start1+1
);
int start2=str1.indexOf("\""
);
String str2=str1.substring(start2+1
);
int start3=str2.indexOf("\""
);
ip=str2.substring(0
,start3);
return ip;
}
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
注意用到网络连接的方法不能用在主线程
转载于:https://www.cnblogs.com/nibolyoung/p/11381575.html
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