sijms/go-ora 是純golang 編寫的oracle 驅動（目前不太穩定）但是已經很不錯了，以下是參考試用

參考程式碼

package main

​

import (

  "database/sql"

  "flag"

  "fmt"

​

  _ "github.com/sijms/go-ora"

​

  "log"

)

​

var (

  username  = flag.String("uname", "scott", "oracle username")

  password  = flag.String("password", "tiger", "oracle password")
 

  oraclehost = flag.String("oraclehost", "dbhost", "oracle database host")

  oracleport = flag.Int("oracleport", 1521, "oracle database port")

  dbname   = flag.String("dbname", "orclpdb1", "oracle database name")

)

​

func main() {

  flag.Parse()

  osqlInfo := fmt.Sprintf("oracle://%s:%s@%s:%d/%s", *username, *password, *oraclehost, *oracleport, *dbname)
 

  db, err := sql.Open("oracle", osqlInfo)

  if err != nil {

    log.Fatalf("connect oracle db error: %s:", err.Error())

   }

  rows, err := db.Query("select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss') AS name from dual")

  if err != nil {

    fmt.Println("exec query error:", err.Error())
 

   }

  for rows.Next() {

    var name string

    rows.Scan(&name)

    fmt.Println("fetch item:")

    fmt.Println(name)

   }

}

執行說明

go run main.go -uname <username> -password <password> -oraclehost <ip> -dbname <db>

容器整合

這個就很簡單了，直接用最小映象處理

FROM golang:1.15-alpine AS build-env

WORKDIR /go/src/app

RUN /bin/sed -i 's,http://dl-cdn.alpinelinux.org,https://mirrors.aliyun.com,g' /etc/apk/repositories

​

ENV GO111MODULE=on

ENV GOPROXY=https://goproxy.cn

COPY . .

RUN apk update && apk add git \

  && go build

​

FROM alpine:latest

WORKDIR /app

RUN /bin/sed -i 's,http://dl-cdn.alpinelinux.org,https://mirrors.aliyun.com,g' /etc/apk/repositories

RUN apk update && apk add ca-certificates && rm -rf /var/cache/apk/*

COPY --from=build-env /go/src/app/mygolang-oracle /app/mygolang-oracle

ENTRYPOINT [ "/app/mygolang-oracle" ]

說明

目前sijms/go-ora不是很穩定，但是至少很不錯了，是一個值得試用的純golang oracle驅動

參考資料

https://github.com/sijms/go-ora
https://github.com/rongfengliang/godror-golang-learning/tree/v2