95 lines
1.7 KiB
Go
95 lines
1.7 KiB
Go
package main
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import (
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"context"
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"fmt"
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"log"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"api/config"
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"api/router"
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"github.com/gin-gonic/gin"
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"github.com/joho/godotenv"
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)
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func main() {
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// 加载环境变量
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if err := godotenv.Load(); err != nil {
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log.Println("No .env file found, using environment variables")
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}
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// 设置运行模式
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if os.Getenv("APP_ENV") == "production" {
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gin.SetMode(gin.ReleaseMode)
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} else {
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gin.SetMode(gin.DebugMode)
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}
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// 初始化配置
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cfg := config.New()
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// 初始化数据库连接
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if err := cfg.InitDB(); err != nil {
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log.Fatalf("Failed to initialize database: %v", err)
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}
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defer cfg.CloseDB()
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// 初始化 Redis 连接
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if err := cfg.InitRedis(); err != nil {
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log.Fatalf("Failed to initialize redis: %v", err)
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}
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defer cfg.CloseRedis()
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// 创建 Gin 引擎
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r := gin.New()
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// 使用中间件
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r.Use(gin.Logger())
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r.Use(gin.Recovery())
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// 注册路由
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router.RegisterRoutes(r, cfg)
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// 获取端口
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port := os.Getenv("APP_PORT")
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if port == "" {
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port = "8080"
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}
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// 创建 HTTP 服务器
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srv := &http.Server{
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Addr: fmt.Sprintf(":%s", port),
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Handler: r,
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}
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// 优雅启停
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go func() {
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log.Printf("Server starting on port %s", port)
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if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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log.Fatalf("Failed to start server: %v", err)
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}
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}()
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// 等待中断信号
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quit := make(chan os.Signal, 1)
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signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
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<-quit
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log.Println("Shutting down server...")
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// 设置关闭超时
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := srv.Shutdown(ctx); err != nil {
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log.Fatalf("Server forced to shutdown: %v", err)
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}
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log.Println("Server exited")
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}
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