我正在嘗試運(yùn)行該程序此鏈接。然而，我運(yùn)行它，它導(dǎo)致側(cè)面的恐慌。由于我是語(yǔ)言新手，我不知道如何調(diào)試它。gormgo該程序的迷你版本（沒(méi)有fb，推特和其他登錄界面）package mainimport ( "net/http" "github.com/qor/auth" "github.com/qor/auth/auth_identity" "github.com/qor/auth/providers/password" "github.com/qor/session/manager" "github.com/jinzhu/gorm")var ( gormDB, _ = gorm.Open("sqlite3", "sample.db") Auth = auth.New(&auth.Config{ DB: gormDB, }))func init() { // Migrate AuthIdentity model, AuthIdentity will be used to save auth info, like username/password, oauth token, you could change that. gormDB.AutoMigrate(&auth_identity.AuthIdentity{}) // Register Auth providers // Allow use username/password Auth.RegisterProvider(password.New(&password.Config{}))}func main() { mux := http.NewServeMux() // Mount Auth to Router mux.Handle("/auth/", Auth.NewServeMux()) http.ListenAndServe(":9000", manager.SessionManager.Middleware(mux))}我將我命名的文件放在一個(gè)文件夾中（是文件夾中唯一的文件），然后我運(yùn)行以初始化項(xiàng)目并安裝所需的包。然后我這樣做，我得到以下內(nèi)容：main.gomain.gogo mod init project_name && go mod tidygo run .panic: runtime error: invalid memory address or nil pointer dereference[signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0x6d0441]我真的很迷茫，因?yàn)槲也恢廊绾握{(diào)試它。似乎是結(jié)構(gòu)中的指針（我不知道如何更改）。順便說(shuō)一句，我正在使用.auth_identity.AuthIdentitygo version go1.16.5 linux/amd64
3 回答
慕尼黑的夜晚無(wú)繁華
TA貢獻(xiàn)1864條經(jīng)驗(yàn) 獲得超6個(gè)贊
這似乎不是在戈?duì)柲分姓_打開(kāi) SQLite 數(shù)據(jù)庫(kù)的方法。
您缺少 SQLite 驅(qū)動(dòng)程序的導(dǎo)入，而不是傳遞字符串“sqlite3”，而應(yīng)該傳遞和指向 .sqlite.Open("sample.db")gorm.Config
請(qǐng)參閱 https://gorm.io/docs/connecting_to_the_database.html#SQLite
import (
"gorm.io/driver/sqlite"
"gorm.io/gorm"
)
// github.com/mattn/go-sqlite3
db, err := gorm.Open(sqlite.Open("gorm.db"), &gorm.Config{})
汪汪一只貓
TA貢獻(xiàn)1898條經(jīng)驗(yàn) 獲得超8個(gè)贊
func init在建立數(shù)據(jù)庫(kù)連接之前執(zhí)行，gorm 無(wú)法遷移，并且在此處引發(fā)恐慌。
試試這個(gè)代碼
func main(){
gormDB, err = gorm.Open("sqlite3", "sample.db")
if err != nil {
log.Falal(err) // thrown, if database cannot be opened
}
// database connection is established, ready to perform migrations:
Auth = auth.New(&auth.Config{
DB: gormDB,
})
// Migrate AuthIdentity model, AuthIdentity will be used to save auth info, like username/password, oauth token, you could change that.
err = gormDB.AutoMigrate(&auth_identity.AuthIdentity{})
if err != nil {
log.Fatal(err) // do not forget to throw exception, if migration fails
}
// Register Auth providers
// Allow use username/password
Auth.RegisterProvider(password.New(&password.Config{}))
err = gormDB.AutoMigrate(&auth_identity.AuthIdentity{})
if err != nil {
log.Fatal(err) // do not forget to throw exception, if migration fails
}
// Register Auth providers
// Allow use username/password
Auth.RegisterProvider(password.New(&password.Config{}))
mux := http.NewServeMux()
// Mount Auth to Router
mux.Handle("/auth/", Auth.NewServeMux())
http.ListenAndServe(":9000", manager.SessionManager.Middleware(mux))
}
瀟湘沐
TA貢獻(xiàn)1816條經(jīng)驗(yàn) 獲得超6個(gè)贊
問(wèn)題是沒(méi)有開(kāi)箱即用的支持。在教程中，他們忘記在導(dǎo)入中添加以下行：sqlite
_ "github.com/jinzhu/gorm/dialects/sqlite"
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