33 lines
602 B
Go
33 lines
602 B
Go
package main
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import (
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"flag"
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"fmt"
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"os"
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"strconv"
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)
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func main() {
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port := flag.Int("port", 8080, "服务端口")
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host := flag.String("host", "localhost", "服务绑定主机")
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flag.Parse()
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// 环境变量仅覆盖未手动传参的配置
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if !flag.IsSet("port") {
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if envPort := os.Getenv("SERVICE_PORT"); envPort != "" {
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if p, err := strconv.Atoi(envPort); err == nil {
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*port = p
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}
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}
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}
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if !flag.IsSet("host") {
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if envHost := os.Getenv("SERVICE_HOST"); envHost != "" {
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*host = envHost
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}
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}
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fmt.Printf("最终生效配置：主机=%s，端口=%d\n", *host, *port)
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}
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