golang udp 指定本地地址和端口
发布时间:2020-12-16 19:16:55 所属栏目:大数据 来源:网络整理
导读:指定本地地址为127.0.0.1 端口7770 localip := net .ParseIP ( "127.0.0.1" ) remoteip := net .ParseIP ( "127.0.0.1" ) lAddr := net .UDPAddr {IP: localip,Port: 7770 } rAddr := net .UDPAddr {IP: remoteip,Port: 9130 } conn,err := net .DialUDP ( "
指定本地地址为127.0.0.1 端口7770 localip := net.ParseIP("127.0.0.1")
remoteip := net.ParseIP("127.0.0.1")
lAddr := &net.UDPAddr{IP: localip,Port: 7770}
rAddr := &net.UDPAddr{IP: remoteip,Port: 9130}
conn,err := net.DialUDP("udp",lAddr,rAddr)
if err != nil {
fmt.Println(err)
}
defer conn.Close()
conn.Write([]byte("hello"))
go net标准库中DialUDP的实现 // DialUDP connects to the remote address raddr on the network net,// which must be "udp","udp4",or "udp6". If laddr is not nil,it is
// used as the local address for the connection.
func DialUDP(net string,laddr,raddr *UDPAddr) (*UDPConn,error) {
switch net {
case "udp","udp6":
default:
return nil,&OpError{Op: "dial",Net: net,Source: laddr.opAddr(),Addr: raddr.opAddr(),Err: UnknownNetworkError(net)}
}
if raddr == nil {
return nil,Addr: nil,Err: errMissingAddress}
}
c,err := dialUDP(context.Background(),net,raddr)
if err != nil {
return nil,Err: err}
}
return c,nil
} (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |