client
package main
import (
"bufio"
"fmt"
"net"
"os"
"strings"
)
func main() {
conn, err := net.Dial("tcp", "127.0.0.1:8888")
if err != nil {
fmt.Println("client dial err=", err)
return
}
reader := bufio.NewReader(os.Stdin)
go func() {
buf := make([]byte, 1024)
n, err := conn.Read(buf)
if err != nil {
fmt.Println("服务器read err=", err)
return
}
fmt.Print(string(buf[:n]))
}()
for {
line, err := reader.ReadString('\n')
if err != nil {
fmt.Println("readstring err=", err)
}
line = strings.Trim(line, "\r\n")
if line == "exit" {
fmt.Println("客户端退出")
return
}
n, err := conn.Write([]byte(line + "\n"))
if err != nil {
fmt.Println("conn.Write err=", err)
}
fmt.Printf("发送了%d个字节\n",n)
}
}
server
package main
import (
"bufio"
"fmt"
"net"
"os"
"strings"
)
func process(conn net.Conn) {
defer conn.Close()
go func() {
for {
buf := make([]byte, 1024)
n, err := conn.Read(buf)
if err != nil {
fmt.Println("服务器read err=", err)
return
}
fmt.Print(string(buf[:n]))
}
}()
for {
reader := bufio.NewReader(os.Stdin)
line, err := reader.ReadString('\n')
if err != nil {
fmt.Println("readstring err=", err)
}
line = strings.Trim(line, "\r\n")
if line == "exit" {
fmt.Println("客户端退出")
return
}
_, err = conn.Write([]byte(line + "\n"))
if err != nil {
fmt.Println("conn.Write err=", err)
}
}
}
func main() {
fmt.Println("服务器开始监听------")
listen, err := net.Listen("tcp", "0.0.0.0:8888")
if err != nil {
fmt.Println("listen err=", err)
return
}
defer listen.Close()
for {
fmt.Println("-----等待客户连接----")
conn, err := listen.Accept()
if err != nil {
fmt.Println("Accept err=", err)
} else {
fmt.Printf("Accept success con类型%T,客户ip%v\n", conn, conn.RemoteAddr().String())
}
go process(conn)
}
}
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