golang 实现简单的 socket 服务端/客户端
server.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
package main
import "net"
import "fmt"
import "bufio"
import "strings" // only needed below for sample processing
func main() {
fmt.Println("Launching server...")
// listen on all interfaces
ln, _ := net.Listen("tcp", ":8081")
// accept connection on port
conn, _ := ln.Accept()
// run loop forever (or until ctrl-c)
for {
// will listen for message to process ending in newline (\n)
message, _ := bufio.NewReader(conn).ReadString('\n')
// output message received
fmt.Print("Message Received:", string(message))
// sample process for string received
newmessage := strings.ToUpper(message)
// send new string back to client
conn.Write([]byte(newmessage + "\n"))
}
}
client.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
package main
import "net"
import "fmt"
import "bufio"
import "os"
func main() {
// connect to this socket
conn, _ := net.Dial("tcp", "127.0.0.1:8081")
for {
// read in input from stdin
reader := bufio.NewReader(os.Stdin)
fmt.Print("Text to send: ")
text, _ := reader.ReadString('\n')
// send to socket
fmt.Fprintf(conn, text + "\n")
// listen for reply
message, _ := bufio.NewReader(conn).ReadString('\n')
fmt.Print("Message from server: "+message)
}
}