Golang（Go语言）GORM使用SQLite数据库

以下是GORM使用标准未加密的SQLite数据库方法（由https://gorm.io/docs/提供）

1、安装引用

go get -u gorm.io/gorm
go get -u gorm.io/driver/sqlite

2、开始享用

package main

import (
  "gorm.io/gorm"
  "gorm.io/driver/sqlite"
)

type Product struct {
  gorm.Model
  Code  string
  Price uint
}

func main() {
  db, err := gorm.Open(sqlite.Open("test.db"), &gorm.Config{})
  if err != nil {
    panic("failed to connect database")
  }

  // Migrate the schema
  db.AutoMigrate(&Product{})

  // Create
  db.Create(&Product{Code: "D42", Price: 100})

  // Read
  var product Product
  db.First(&product, 1) // find product with integer primary key
  db.First(&product, "code = ?", "D42") // find product with code D42

  // Update - update product's price to 200
  db.Model(&product).Update("Price", 200)
  // Update - update multiple fields
  db.Model(&product).Updates(Product{Price: 200, Code: "F42"}) // non-zero fields
  db.Model(&product).Updates(map[string]interface{}{"Price": 200, "Code": "F42"})

  // Delete - delete product
  db.Delete(&product, 1)
}

以下是GORM使用加密的SQLite数据库方法

1、安装引用

go get -u gorm.io/gorm
go get -u github.com/jackfr0st13/gorm-sqlite-cipher

2、开始享用

package main

import (
    sqliteEncrypt "github.com/jackfr0st13/gorm-sqlite-cipher"
    "gorm.io/gorm"
)

type Product struct {
    gorm.Model
    Code  string
    Price uint
}

func main() {
//设置密码
    dsn := fmt.Sprintf("test.db?_pragma_key=%s&_pragma_cipher_page_size=4096", "password")
    db, err := gorm.Open(sqliteEncrypt.Open(dsn), &gorm.Config{})
    if err != nil {
        panic("failed to connect database")
    }

    // Migrate the schema
    db.AutoMigrate(&Product{})

    // Create
    db.Create(&Product{Code: "D42", Price: 100})

    // Read
    var product Product
    db.First(&product, 1)                 // find product with integer primary key
    db.First(&product, "code = ?", "D42") // find product with code D42
    
    // Update - update product's price to 200
    db.Model(&product).Update("Price", 200)
    // Update - update multiple fields
    db.Model(&product).Updates(Product{Price: 200, Code: "F42"}) // non-zero fields
    db.Model(&product).Updates(map[string]interface{}{"Price": 200, "Code": "F42"})

    // Delete - delete product
    db.Delete(&product, 1)
}

可以看到只是在未加密数据库使用代码的基础之上做了些许修改就支持加密了，GURD部分不需要任何变动，具体修改如下：

"gorm.io/driver/sqlite"
改为
sqliteEncrypt "github.com/jackfr0st13/gorm-sqlite-cipher"

db, err := gorm.Open(sqlite.Open("test.db"), &gorm.Config{}) 
改为
dsn := fmt.Sprintf("test.db?_pragma_key=%s&_pragma_cipher_page_size=4096", "password")
db, err := gorm.Open(sqliteEncrypt.Open(dsn), &gorm.Config{})