1. 实现配置文件解析

2. 实现数据库连接

vendor/gorm.io/gorm/interfaces.go

@@ -0,0 +1,92 @@
+package gorm
+
+import (
+	"context"
+	"database/sql"
+
+	"gorm.io/gorm/clause"
+	"gorm.io/gorm/schema"
+)
+
+// Dialector GORM database dialector
+type Dialector interface {
+	Name() string
+	Initialize(*DB) error
+	Migrator(db *DB) Migrator
+	DataTypeOf(*schema.Field) string
+	DefaultValueOf(*schema.Field) clause.Expression
+	BindVarTo(writer clause.Writer, stmt *Statement, v interface{})
+	QuoteTo(clause.Writer, string)
+	Explain(sql string, vars ...interface{}) string
+}
+
+// Plugin GORM plugin interface
+type Plugin interface {
+	Name() string
+	Initialize(*DB) error
+}
+
+type ParamsFilter interface {
+	ParamsFilter(ctx context.Context, sql string, params ...interface{}) (string, []interface{})
+}
+
+// ConnPool db conns pool interface
+type ConnPool interface {
+	PrepareContext(ctx context.Context, query string) (*sql.Stmt, error)
+	ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
+	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
+	QueryRowContext(ctx context.Context, query string, args ...interface{}) *sql.Row
+}
+
+// SavePointerDialectorInterface save pointer interface
+type SavePointerDialectorInterface interface {
+	SavePoint(tx *DB, name string) error
+	RollbackTo(tx *DB, name string) error
+}
+
+// TxBeginner tx beginner
+type TxBeginner interface {
+	BeginTx(ctx context.Context, opts *sql.TxOptions) (*sql.Tx, error)
+}
+
+// ConnPoolBeginner conn pool beginner
+type ConnPoolBeginner interface {
+	BeginTx(ctx context.Context, opts *sql.TxOptions) (ConnPool, error)
+}
+
+// TxCommitter tx committer
+type TxCommitter interface {
+	Commit() error
+	Rollback() error
+}
+
+// Tx sql.Tx interface
+type Tx interface {
+	ConnPool
+	TxCommitter
+	StmtContext(ctx context.Context, stmt *sql.Stmt) *sql.Stmt
+}
+
+// Valuer gorm valuer interface
+type Valuer interface {
+	GormValue(context.Context, *DB) clause.Expr
+}
+
+// GetDBConnector SQL db connector
+type GetDBConnector interface {
+	GetDBConn() (*sql.DB, error)
+}
+
+// Rows rows interface
+type Rows interface {
+	Columns() ([]string, error)
+	ColumnTypes() ([]*sql.ColumnType, error)
+	Next() bool
+	Scan(dest ...interface{}) error
+	Err() error
+	Close() error
+}
+
+type ErrorTranslator interface {
+	Translate(err error) error
+}