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空指针导致程序出错

This commit is contained in:
lijun 2025-01-15 00:39:18 +08:00
parent 788c40131f
commit 1c581654f4
1 changed files with 12 additions and 8 deletions
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4
handler/tool.go
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@ -166,6 +166,9 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
img, c := service.GetDeviceCurrentFrame(device_id) img, c := service.GetDeviceCurrentFrame(device_id)
if c != count { if c != count {
//将img转[]byte //将img转[]byte
if img.Empty() {
fmt.Println("device:%d img is empty!", device_id)
} else {
buf, _ := gocv.IMEncode(".jpg", img) buf, _ := gocv.IMEncode(".jpg", img)
buf1 := buf.GetBytes() buf1 := buf.GetBytes()
@ -176,6 +179,7 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
goto end goto end
} }
c = count c = count
}
} else { } else {
//每秒发送一次心跳检测 //每秒发送一次心跳检测
if t_count%10 == 0 { if t_count%10 == 0 {