Go 获取本机网卡所有IP

╰半夏微凉° 2023-10-12 14:32 41阅读 0赞

#### 阅读目录 ####

*  Go 获取本机网卡所有IP
 *  提取字符串中"D999"后面的IP地址

## Go 获取本机网卡所有IP ##

package main
    
    import (
    	"fmt"
    	"net"
    )
    
    func main() {
        
    	interfaces, err := net.Interfaces()
    	if err != nil {
        
    		fmt.Println("Failed to get network interfaces:", err)
    		return
    	}
    
    	for _, iface := range interfaces {
        
    		addrs, err := iface.Addrs()
    		if err != nil {
        
    			fmt.Println("Failed to get addresses for interface", iface.Name, ":", err)
    			continue
    		}
    
    		for _, addr := range addrs {
        
    			ipNet, ok := addr.(*net.IPNet)
    			if ok && !ipNet.IP.IsLoopback() && ipNet.IP.To4() != nil {
        
    				fmt.Println("Interface:", iface.Name)
    				fmt.Println("IP Address:", ipNet.IP)
    			}
    		}
    	}
    }

PS E:\TEXT\test> go run .\gogo.go
    Interface: 本地连接
    IP Address: 169.254.254.222
    Interface: Mirage        
    IP Address: 169.254.24.43
    Interface: 以太网       
    IP Address: 172.16.7.170
    Interface: VirtualBox Host-Only Network
    IP Address: 192.168.56.1
    Interface: WLAN
    IP Address: 169.254.135.251
    Interface: 本地连接* 9    
    IP Address: 169.254.23.217
    Interface: 本地连接* 10
    IP Address: 169.254.22.148
    Interface: VMware Network Adapter VMnet1
    IP Address: 192.168.149.1
    Interface: VMware Network Adapter VMnet2
    IP Address: 192.168.235.1
    Interface: 以太网 2
    IP Address: 169.254.151.85
    Interface: vEthernet (WSL)
    IP Address: 172.28.0.1
    PS E:\TEXT\test>

## 提取字符串中"D999"后面的IP地址 ##

package main
    
    import (
    	"fmt"
    	"regexp"
    )
    
    func main() {
        
    	str := "[通讯兵] 收到网络图: netmap: self: [21162] auth=machine-authorized u=? debug={\"DisableLogTail\":true} [100.64.1.70/32] [Hv9Py] d:59be947163c3243a D999 100.64.1.7      :   222.168.43.66:36941   172.16.22.148:60755   172.16.22.150:60755      172.17.0.1:60755      172.19.0.1:60755   192.168.1.110:60755"
    
    	re := regexp.MustCompile(`D999\s+(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})`)
    	match := re.FindStringSubmatch(str)
    	if len(match) >= 2 {
        
    		ip := match[1]
    		fmt.Println("提取到的IP地址:", ip)
    	} else {
        
    		fmt.Println("未找到匹配的IP地址")
    	}
    }

PS E:\TEXT\test> go run .\gogo.go
    提取到的IP地址: 100.64.1.7
    PS E:\TEXT\test>

正则表达式 `D999\s+(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})` 用于匹配以"D999"开头，后面跟着一个或多个空格，并且紧跟着一个IP地址的字符串。

`(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})` 用于匹配IP地址的部分，其中 `\d{1,3}` 表示一个由 1 到 3 位数字组成的部分，`\.` 用于匹配点号分隔符。