进来接微信支付,后台要传ip地址,so~

首先要导这些头文件

1 #include 
     
       2 #include 
      
        3 #include 
       
         4 #include 
        
          5 #include 
         
           6 #include 
          
            7 #include 
           
             8 #include 
            
              9 #include 
             
              10 #include 
              
               11 #include 
               
                12 #include 
                
                 13 #include 
                 
                  14 #include 
                  
                   15 #include 
                   
                    16 #include 
                    
                     17 #include 
                     
                      18 #include 
                      
                       19 #include 
                       
                      
                     
                    
                   
                  
                 
                
               
              
             
            
           
          
         
        
       
      
     

然后就是方法啦:

1 + (NSString *)getIPAddress 2 { 3     NSString *address = @"error"; 4     struct ifaddrs *interfaces = NULL; 5     struct ifaddrs *temp_addr = NULL; 6     int success = 0; 7     // retrieve the current interfaces - returns 0 on success 8     success = getifaddrs(&interfaces); 9     if (success == 0)10     {11         // Loop through linked list of interfaces12         temp_addr = interfaces;13         while(temp_addr != NULL)14         {15             if(temp_addr->ifa_addr->sa_family == AF_INET)16             {17                 // Check if interface is en0 which is the wifi connection on the iPhone18                 if([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"])19                 {20                     // Get NSString from C String21                     address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];22                 }23             }24             temp_addr = temp_addr->ifa_next;25         }26     }27     // Free memory28     freeifaddrs(interfaces);29     return address;30 }

我是给放在工具类里面了,哪里要用调哪里~so easy~