通过拆分多帧的方式WebSocket发送图片

package main
import (
"fmt"
"golang.org/x/net/websocket"
"log"
"net/http"
"os"
"time"
)
var (
dirPath string
test byte
lenFile int
)
func check(e error) {
if e != nil {
panic(e)
}
}
func ChatServer(ws *websocket.Conn) {
defer ws.Close()
var test []byte
var payload []byte
for {
err := websocket.Message.Receive(ws, &payload)
if err != nil {
log.Println(err)
}
fmt.Println("Payload: ", len(payload))
test = append(test, payload...)
fmt.Println("Test: ", len(test))
fo, err := os.Create(fmt.Sprintf("./%d.png", time.Now().UnixNano()))
check(err)
_, err = fo.Write(test)
check(err)
fo.Close()
}
log.Print("DONE")
}
func main() {
if len(os.Args) <2 {
log.Fatal("Usage: chatExample