我试图使用odbc驱动程序并且我遇到错误:
.\main.go:5: imported and not used: "code.google.com/p/odbc/api"
.\main.go:72: undefined: Driver
.\main.go:76: undefined: Driver
我尝试使用另一个驱动程序:go get github.com/denisenkom/go-mssqldb
但遇到了同样类型的问题
这就是为什么我怀疑我没有正确设置环境但无法找到问题。
set GOARCH=amd64
set GOBIN=
set GOCHAR=6
set GOEXE=.exe
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOOS=windows
set GOPATH=C:\Go\Projects
set GORACE=
set GOROOT=C:\Go
set GOTOOLDIR=C:\Go\pkg\tool\windows_amd64
set TERM=dumb
set CC=gcc
set GOGCCFLAGS=-g -O2 -m64 -mthreads
set CXX=g++
set CGO_ENABLED=1
我使用go get code.google.com/p/odbc
安装了odbc
跑完测试,结果很好:
C:\Go\Projects\src\code.google.com\p\odbc>go test -mssrv=.\sqlexp -v -run=MS
...
--- PASS: TestMSSQLUTF16ToUTF8 (0.00 seconds)
=== RUN TestMSSQLExecStoredProcedure
--- PASS: TestMSSQLExecStoredProcedure (0.01 seconds)
PASS
ok code.google.com/p/odbc 0.574s
我的代码: (从mssql_test.go复制):
package main
import (
"code.google.com/p/odbc/api"
"database/sql"
"flag"
"fmt"
"os"
"runtime"
"testing"
"time"
)
func mssqlConnect() (db *sql.DB, stmtCount int, err error) {
.........
return db, db.Driver().(*Driver).Stats.StmtCount, nil
}
func closeDB(t *testing.T, db *sql.DB, shouldStmtCount, ignoreIfStmtCount int) {
s := db.Driver().(*Driver).Stats
......
答案 0 :(得分:2)
.\main.go:5: imported and not used: "code.google.com/p/odbc/api"
.\main.go:72: undefined: Driver
.\main.go:76: undefined: Driver
删除import
"code.google.com/p/odbc/api"
添加import
"code.google.com/p/odbc"
将*Driver
替换为*odbc.Driver
。例如,
return db, db.Driver().(*odbc.Driver).Stats.StmtCount, nil
和
s := db.Driver().(*odbc.Driver).Stats
./main.go:5: imported and not used: "github.com/denisenkom/go-mssqldb" as mssql
将import
更改为
_ "github.com/denisenkom/go-mssqldb"
例如,
package main
import (
"database/sql"
_ "github.com/denisenkom/go-mssqldb"
)
func main() {
conn, err := sql.Open("mssql", makeConnStr())
}
The Go Programming Language Specification
要仅为其副作用(初始化)导入包,请使用 空白标识符作为显式包名称:
import _ "lib/math"