for-loop - Go中for循环内的错误处理可能会导致下一次迭代

Question

我为将日志文件发送到不同位置而使用特定的Go实现感到困惑:

package main

func isDestinationSIEM(json_msg string, json_obj *jason.Object, siem_keys []string) (bool) {
    if json_obj != nil {
        dest, err := json_obj.GetString("destination")
        if err == nil {
            if strings.Contains(dest,"SIEM") {
                return true
            }
        }

        for _, key :=  range siem_keys {
            if strings.Contains(json_msg, key) {
                return true
            }
        }
    }
    return false
}

func sendToSIEM(siem_dst string, json_msg string) (error) {
    // Create connection to syslog server
    roots := x509.NewCertPool()
    ok := roots.AppendCertsFromPEM([]byte(rootPEM))
    if !ok {
        fmt.Println("failed to parse root certificate")
    }
    config := &tls.Config{RootCAs: roots, InsecureSkipVerify: true}
    conn, err := tls.Dial("tcp", siem_dst, config)
    if err != nil {
        fmt.Println("Error connecting SIEM")
        fmt.Println(err.Error())
    } else {
        // Send log message
        _, err = fmt.Fprintf(conn, json_msg)
        if err != nil {
            fmt.Println("Error sending SIEM message: ", json_msg)
            fmt.Println(err.Error())
        }
    }
    defer conn.Close()

    return err
}



func main() {

    // simplified code otherwise there would have been too much
    // but the 'devil' is this for loop
    for _, obj := range objects {

        // first check
        isSIEM := isDestinationSIEM(obj, siem_keys)
        if isSIEM {
           err := sendToSIEM(obj)
           if err != nil {
             // print error
           }

        isAUDIT:= isDestinationSIEM(obj)
        if isAUDIT {
           err := sendToAUDIT(obj)
           if err != nil {
             // print error
           }




    } // end of for


}

如果“if isSIEM”返回错误，则不会进行第二次检查“if isAUDIT”。
为什么是这样？如果返回错误，则循环是否从下一次迭代开始？

错误看起来像这样:
运行时错误:无效的内存地址或nil指针取消引用:errorString(列出了两个go包)

Answer 1

The error looks like this: runtime error: invalid memory address or nil pointer dereference: errorString (which lists a couple of go packages)

这意味着您捕获了panic()并且程序已停止，这也意味着您的圈子for也已停止。

这里详细说明如何处理紧急https://blog.golang.org/defer-panic-and-recover