- (void)getIp

{

? ? NSLog(@"開始獲取ip");

? ? NSError*error;

? ? NSString*ip =@"";

? ? // 方法1? ? 不穩(wěn)定，有時(shí)太慢，有時(shí)得不到結(jié)果

? ? NSURL *url = [NSURL URLWithString:@"https://ifconfig.me/ip"];

? ? ip = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&error];

? ? // 方法2

? ? NSURL *url = [NSURL URLWithString:@"http://ip.taobao.com/service/getIpInfo.php?ip=myip"];

? ? NSString *response = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&error];

? ? NSDictionary*dicResponse = [responsemj_JSONObject];

? ? if(dicResponse && dicResponse[@"data"]) {

? ? ? ? NSDictionary*dicData = dicResponse[@"data"];

? ? ? ? if(dicData && dicData[@"ip"]) {

? ? ? ? ? ? ip = dicData[@"ip"];

? ? ? ? }

? ? }

? ? // 方法3?

? ? NSURL *url = [NSURL URLWithString:@"http://pv.sohu.com/cityjson?ie=utf-8"];

? ? NSString*response = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&error];

? ? //判斷返回字符串是否為所需數(shù)據(jù)

? ? NSString *prefix = @"var returnCitySN = ";

? ? if([responsehasPrefix:prefix]) {

? ? ? ? // 刪除多余內(nèi)容

? ? ? ? response = [responsesubstringFromIndex:prefix.length];

? ? ? ? response = [responsesubstringToIndex:response.length-1];

? ? ? ? NSDictionary*dicResponse = [responsemj_JSONObject];

? ? ? ? if(dicResponse && dicResponse[@"cip"]) {

? ? ? ? ? ? ip = dicResponse[@"cip"];

? ? ? ? }

? ? }

? ? NSLog(@"當(dāng)前網(wǎng)絡(luò)ip %@", ip);

}