36 lines
641 B
Go
36 lines
641 B
Go
package main
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import (
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"fmt"
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"io"
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"log"
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"net"
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"net/http"
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"strings"
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)
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func GetLocalIpv4Addr() string {
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resp, err := http.Get("https://inet-ip.aixiao.me/")
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if err != nil {
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fmt.Printf("请求失败: %s\n", err)
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return "NULL"
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}
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defer resp.Body.Close()
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ip, err := io.ReadAll(resp.Body)
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if err != nil {
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fmt.Printf("读取响应失败: %s\n", err)
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return "NULL"
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}
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ipStr := strings.TrimSpace(string(ip))
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// ✅ 验证是否是合法 IPv4
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if net.ParseIP(ipStr) == nil || strings.Contains(ipStr, "<") {
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fmt.Printf("无效的IP响应: %q\n", ipStr)
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return "NULL"
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}
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log.Printf(" 公网IP: %s\n", ipStr)
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return ipStr
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}
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