web 服务框架

init/env/env.go

@@ -0,0 +1,92 @@
+package env
+
+import (
+	"log/slog"
+	"os"
+
+	"github.com/gofiber/fiber/v2/log"
+	"github.com/joho/godotenv"
+)
+
+var (
+	AppName = "platform"
+	AppPort = "8080"
+)
+
+var (
+	DbHost     = "localhost"
+	DbPort     = "3306"
+	DbName     string
+	DbUserName string
+	DbPassword string
+)
+
+var (
+	LogLevel = slog.LevelDebug
+)
+
+func Init() {
+	err := godotenv.Load()
+	if err != nil {
+		log.Debug("❓ 没有本地环境变量")
+	} else {
+		log.Debug("✔ 加载本地环境变量")
+	}
+
+	check()
+}
+
+func check() {
+	_AppName := os.Getenv("APP_NAME")
+	if _AppName != "" {
+		AppName = _AppName
+	}
+
+	_AppPort := os.Getenv("APP_PORT")
+	if _AppPort != "" {
+		AppPort = _AppPort
+	}
+
+	_DbHost := os.Getenv("DB_HOST")
+	if _DbHost != "" {
+		DbHost = _DbHost
+	}
+
+	_DbPort := os.Getenv("DB_PORT")
+	if _DbPort != "" {
+		DbPort = _DbPort
+	}
+
+	_DbName := os.Getenv("DB_NAME")
+	if _DbName != "" {
+		DbName = _DbName
+	} else {
+		panic("环境变量 DB_NAME 的值为空")
+	}
+
+	_DbUserName := os.Getenv("DB_USERNAME")
+	if _DbUserName != "" {
+		DbUserName = _DbUserName
+	} else {
+		panic("环境变量 DB_USERNAME 的值为空")
+	}
+
+	_DbPassword := os.Getenv("DB_PASSWORD")
+	if _DbPassword != "" {
+		DbPassword = _DbPassword
+	} else {
+		panic("环境变量 DB_PASSWORD 的值为空")
+	}
+
+	_LogLevel := os.Getenv("LOG_LEVEL")
+	switch _LogLevel {
+	case "debug":
+		LogLevel = slog.LevelDebug
+	case "info":
+		LogLevel = slog.LevelInfo
+	case "warn":
+		LogLevel = slog.LevelWarn
+	case "error":
+		LogLevel = slog.LevelError
+	}
+}

init/logs/logs.go

@@ -0,0 +1,22 @@
+package logs
+
+import (
+	"log/slog"
+	"os"
+	"platform/init/env"
+	"time"
+
+	"github.com/lmittmann/tint"
+)
+
+var Default *slog.Logger
+
+func Init() {
+	Default = slog.New(
+		tint.NewHandler(os.Stdout, &tint.Options{
+			Level:      env.LogLevel,
+			TimeFormat: time.Kitchen,
+		}),
+	)
+	slog.SetDefault(Default)
+}

init/orm/orm.go

@@ -0,0 +1,43 @@
+package orm
+
+import (
+	"fmt"
+	"log/slog"
+	"platform/init/env"
+	"platform/init/logs"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/schema"
+)
+import "gorm.io/driver/postgres"
+
+var DB *gorm.DB
+
+func Init() {
+	logger := logs.Default
+
+	dsn := fmt.Sprintf(
+		"host=%s user=%s password=%s dbname=%s port=%s sslmode=disable TimeZone=Asia/Shanghai",
+		env.DbName, env.DbUserName, env.DbPassword, env.DbName, env.DbPort,
+	)
+
+	open, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
+		NamingStrategy: schema.NamingStrategy{
+			SingularTable: true,
+		},
+	})
+	if err != nil {
+		logger.Error("gorm 打开数据库失败", slog.Any("err", err))
+		panic(err)
+	}
+
+	sql, err := open.DB()
+	if err != nil {
+		logger.Error("gorm open db error: ", slog.Any("err", err))
+		panic(err)
+	}
+	sql.SetMaxIdleConns(10)
+	sql.SetMaxOpenConns(100)
+
+	DB = open
+}