[英]Golang http: multiple response.WriteHeader calls
這些天,我一直在使用Beego框架通過websoket發送消息。 但是遇到錯誤的消息http:多個response.WriteHeader調用問題出在哪里? 任何提示都很棒!
func (this *WsController) Get() {
fmt.Println("connected")
handler(this.Ctx.ResponseWriter, this.Ctx.Request, this);
conn, err := upgrader.Upgrade(this.Ctx.ResponseWriter, this.Ctx.Request, nil)
if _, ok := err.(websocket.HandshakeError); ok {
http.Error(this.Ctx.ResponseWriter, "Not a websocket handshake", 400)
return
} else if err != nil {
return
}
fmt.Println("connected")
connection := consumer.New(beego.AppConfig.String("LoggregatorAddress"), &tls.Config{InsecureSkipVerify: true}, nil)
fmt.Println("===== Tailing messages")
msgChan, err := connection.Tail(this.Ctx.Input.Param(":appGuid"), this.Ctx.Input.Param(":token"))
if err != nil {
fmt.Printf("===== Error tailing: %v\n", err)
} else {
for msg := range msgChan {
// if closeRealTimeLogFlag{
// consumer.Close()
// break
// }
if err = conn.WriteMessage(websocket.TextMessage, msg.Message); err != nil {
fmt.Println(err)
}
fmt.Printf("%v \n", msg)
}
}
}
因為您寫的不僅僅是statusCode
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