api_orm.go中，以下代码gin1.8.1已经过过限制了，999<code>100，所以这里使用50001，会发生panic：invalid WriteHeader code 50001 if err != nil { logger.Error(c, err.Error(), nil) c.AbortWithError(50001, err) return } gin v1.8.1 源码如下： func checkWriteHeaderCode(code int) { // Issue 22880: require valid WriteHeader status codes. // For now we only enforce that it's three digits. // In the future we might block things over 599 (600 and above aren't defined // at https://httpwg.org/specs/rfc7231.html#status.codes) // and we might block under 200 (once we have more mature 1xx support). // But for now any three digits. // // We used to send "HTTP/1.1 000 0" on the wire in responses but there's // no equivalent bogus thing we can realistically send in HTTP/2, // so we'll consistently panic instead and help people find their bugs // early. (We can't return an error from WriteHeader even if we wanted to.) if code < 100 || code > 999 { panic(fmt.Sprintf("invalid WriteHeader code %v", code)) } }