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code/allapp/allapp-go-v2/internal/bootstrap/db.go

@@ -0,0 +1,53 @@
+package bootstrap
+
+import (
+	"allapp-go-v2/internal/config"
+	"allapp-go-v2/internal/pkg/logger"
+	"context"
+	"fmt"
+	"net/url"
+	"time"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+func InitDB(cfg *config.Config) (*pgxpool.Pool, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	pg := cfg.Postgres
+
+	// ssl mode
+	sslMode := "disable"
+	if pg.SslMode {
+		sslMode = "require"
+	}
+
+	// 转义密码（防止特殊字符问题）
+	password := url.QueryEscape(pg.Password)
+
+	// 构建 DSN
+	dsn := fmt.Sprintf(
+		"postgres://%s:%s@%s:%d/%s?sslmode=%s&timezone=%s",
+		pg.User,
+		password,
+		pg.Host,
+		pg.Port,
+		pg.Dbname,
+		sslMode,
+		pg.TimeZone,
+	)
+
+	db, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := db.Ping(ctx); err != nil {
+		return nil, err
+	}
+
+	logger.Log.Info("√ 数据库连接成功")
+
+	return db, nil
+}