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[golang] network connection net.dial

2022-07-29 01:51:00 【JavaPub-rodert】

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Use chestnuts

conn, err := net.Dial("tcp", "google.com:80")
if err != nil {
    
	// handle error
}
fmt.Fprintf(conn, "GET / HTTP/1.0\r\n\r\n")
status, err := bufio.NewReader(conn).ReadString('\n')
// ...

Source code

net.Dial Source code

// net.Dial Function interpretation 
//  The actual is Dialer.Dial An encapsulation of ,  After encapsulation , Can be called directly Dial dial , There is no need to define another Dialer Structure object , Use object dialing , The definition of structure object is omitted , The same name method used in packaging , Easy to remember 
func Dial(network, address string) (Conn, error) {
    
	var d Dialer      //  Defined a  Dialer Structure object , Use the Dial Method to dial , therefore net.Dial  The actual is Dialer.Dial An encapsulation of 
	return d.Dial(network, address)
}