Golang网络编程-Socket

刺骨的言语ヽ痛彻心扉 2023-06-15 11:29 3阅读 0赞

## Socket程序示例1 ##

### Server ###

package main
    
    import (
    	"io"
    	"log"
    	"net"
    	"time"
    )
    
    func main() {
    	listener, err := net.Listen("tcp", "localhost:8000")
    	if err != nil {
    		log.Fatal(err)
    	}
    	for {
    		conn, err := listener.Accept()
    		if err != nil {
    			log.Print(err)
    			continue
    		}
    		go handleConn(conn)
    	}
    }
    
    func handleConn(c net.Conn) {
    	defer c.Close()
    	for {
    		_, err := io.WriteString(c, "hello... \n")
    		if err != nil {
    			return
    		}
    		time.Sleep(1 * time.Second)
    	}
    }

### Client ###

package main
    
    import (
    	"io"
    	"log"
    	"net"
    	"os"
    )
    
    func main() {
    	conn, err := net.Dial("tcp", "localhost:8000")
    	if err != nil {
    		log.Fatal(err)
    	}
    	defer conn.Close()
    	supposedCopy(os.Stdout, conn)
    }
    
    func supposedCopy(dst io.Writer, src io.Reader) {
    	if _, err := io.Copy(dst, src); err != nil {
    		log.Fatal(err)
    	}
    }

### 程序运行 ###

控制台分别运行命令

go run tryTimeServer.go

go run tryTimeClient.go

### 运行效果 ###

运行效果如下图所示  
![socket运行效果图][socket]

## Socket程序示例2 ##

### tryTimeServer.go ###

package main
    
    import (
    	"io"
    	"log"
    	"net"
    	"time"
    )
    
    func main() {
    	listener, err := net.Listen("tcp", "localhost:8000")
    	if err != nil {
    		log.Fatal(err)
    	}
    	for {
    		conn, err := listener.Accept()
    		if err != nil {
    			log.Print(err)
    			continue
    		}
    		go handleConn(conn)
    	}
    }
    
    func handleConn(c net.Conn) {
    	defer c.Close()
    	for {
    		_, err := io.WriteString(c, time.Now().Format("2006/01/02 15:04:05\r\n"))
    		//_, err1 := io.WriteString(c, timestr + "hello... \n")
    		if err != nil {
    			return
    		}
    		time.Sleep(1 * time.Second)
    	}
    }

### tryTimeClient.go ###

### 运行效果 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3podWltZW5nX2J5_size_16_color_FFFFFF_t_70]

[socket]: https://img-blog.csdnimg.cn/20191122145409795.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3podWltZW5nX2J5,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3podWltZW5nX2J5_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191122201808265.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3podWltZW5nX2J5,size_16,color_FFFFFF,t_70