feat: 多班级版 v2.0 - Go后端重写 + 43轮代码审查
- 后端从 Python FastAPI 重写为 Go Gin（端口 56789） - 多班级完全隔离 - 超级管理员独立登录 - 课代表作业管理、排行榜分项排行 - 角色加减分上下限可配置 - 家长改密功能（可开关） - 周度/月度重置功能 - MySQL 5.7 兼容 - 43轮代码审查+全部修复 - Apache 2.0 许可证
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210
backend-go/cmd/server/main.go
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210
backend-go/cmd/server/main.go
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// ===========================================
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// 多班级版班级管理系统 - Go 后端
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//
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// 开发者: Canglan
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// 联系方式: admin@sea-studio.top
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// 版权归属: Sea Network Technology Studio
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// 许可证: Apache License 2.0
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//
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// 版权所有 © Sea Network Technology Studio
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// ===========================================
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package main
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import (
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"context"
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"fmt"
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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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"hz-gitea.sea-studio.top/canglan/SharedClassManager/internal/config"
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"hz-gitea.sea-studio.top/canglan/SharedClassManager/internal/handler"
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"hz-gitea.sea-studio.top/canglan/SharedClassManager/internal/repository"
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"hz-gitea.sea-studio.top/canglan/SharedClassManager/internal/router"
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"hz-gitea.sea-studio.top/canglan/SharedClassManager/internal/service"
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"hz-gitea.sea-studio.top/canglan/SharedClassManager/pkg/database"
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"hz-gitea.sea-studio.top/canglan/SharedClassManager/pkg/logger"
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)
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func main() {
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// ========== 1. 加载配置 ==========
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cfg, err := config.Load()
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if err != nil {
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fmt.Fprintf(os.Stderr, "加载配置失败: %v\n", err)
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os.Exit(1)
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}
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// ========== 2. 初始化日志 ==========
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logger.Init(cfg.LogLevel, cfg.IsProduction())
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defer logger.Sync()
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logger.Sugared.Infof("应用启动: %s (env=%s, port=%s)", cfg.AppName, cfg.AppEnv, cfg.AppPort)
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// ========== 3. 初始化 MySQL ==========
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mysqlDB, err := database.InitMySQL(cfg)
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if err != nil {
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logger.Sugared.Fatalf("初始化 MySQL 失败: %v", err)
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}
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logger.Sugared.Info("MySQL 连接成功")
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sqlDB, err := mysqlDB.DB()
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if err != nil {
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logger.Sugared.Fatalf("获取 sql.DB 失败: %v", err)
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}
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defer sqlDB.Close()
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// ========== 4. 初始化 Redis ==========
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redisClient, err := database.InitRedis(cfg)
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if err != nil {
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logger.Sugared.Fatalf("初始化 Redis 失败: %v", err)
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}
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logger.Sugared.Info("Redis 连接成功")
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defer redisClient.Close()
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// ========== 5. 初始化 Repository 层 ==========
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userRepo := repository.NewUserRepo(mysqlDB)
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studentRepo := repository.NewStudentRepo(mysqlDB)
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adminRoleRepo := repository.NewAdminRoleRepo(mysqlDB)
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classRepo := repository.NewClassRepo(mysqlDB)
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conductRepo := repository.NewConductRepo(mysqlDB)
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attendanceRepo := repository.NewAttendanceRepo(mysqlDB)
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semesterRepo := repository.NewSemesterRepo(mysqlDB)
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subjectRepo := repository.NewSubjectRepo(mysqlDB)
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assignmentRepo := repository.NewAssignmentRepo(mysqlDB)
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logRepo := repository.NewLogRepo(mysqlDB)
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superAdminRepo := repository.NewSuperAdminRepo(mysqlDB)
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settingRepo := repository.NewSystemSettingRepo(mysqlDB)
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// ========== 6. 初始化 Service 层 ==========
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logService := service.NewLogService(logRepo)
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authService := service.NewAuthService(
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userRepo, studentRepo, adminRoleRepo, classRepo, logService,
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)
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adminService := service.NewAdminService(
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userRepo, studentRepo, adminRoleRepo, classRepo,
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)
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conductService := service.NewConductService(
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conductRepo, studentRepo, adminRoleRepo, semesterRepo, classRepo,
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)
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attendanceService := service.NewAttendanceService(
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attendanceRepo, studentRepo, userRepo, conductRepo, semesterRepo, settingRepo, classRepo,
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)
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semesterService := service.NewSemesterService(
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semesterRepo, studentRepo, classRepo, attendanceRepo, assignmentRepo, logService,
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)
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classService := service.NewClassService(
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classRepo, userRepo, adminRoleRepo,
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)
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subjectService := service.NewSubjectService(subjectRepo)
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studentService := service.NewStudentService(
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studentRepo, conductRepo, attendanceRepo, semesterRepo,
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)
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parentService := service.NewParentService(
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userRepo, studentRepo, conductRepo, attendanceRepo,
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)
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rankingService := service.NewRankingService(
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studentRepo, conductRepo,
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)
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superAdminService := service.NewSuperAdminService(superAdminRepo, logService)
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configService := service.NewConfigService(classRepo)
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// 确保默认超级管理员存在
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if err := superAdminService.EnsureDefaultAdmin(); err != nil {
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logger.Sugared.Errorf("初始化默认超级管理员失败: %v", err)
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}
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// ========== 7. 初始化 Handler 层 ==========
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handlers := &router.Handlers{
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Auth: handler.NewAuthHandler(authService, superAdminService),
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Admin: handler.NewAdminHandler(adminService, conductService, attendanceService, rankingService, logService),
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Student: handler.NewStudentHandler(studentService, classRepo),
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Parent: handler.NewParentHandler(parentService, authService, classService),
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Subject: handler.NewSubjectHandler(subjectService),
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Semester: handler.NewSemesterHandler(semesterService),
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Class: handler.NewClassHandler(classService),
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Config: handler.NewConfigHandler(configService),
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SuperAdmin: handler.NewSuperAdminHandler(superAdminService),
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Cadre: handler.NewCadreHandler(assignmentRepo, conductService, adminRoleRepo),
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}
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// ========== 8. 初始化路由 ==========
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r := router.SetupRouter(cfg, handlers)
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// ========== 9. 启动 HTTP 服务 ==========
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addr := fmt.Sprintf(":%s", cfg.AppPort)
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srv := &http.Server{
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Addr: addr,
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Handler: r,
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ReadTimeout: 30 * time.Second,
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WriteTimeout: 60 * time.Second,
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IdleTimeout: 120 * time.Second,
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}
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// 优雅关闭
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go func() {
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logger.Sugared.Infof("HTTP 服务启动: http://0.0.0.0%s", addr)
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if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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logger.Sugared.Fatalf("HTTP 服务异常: %v", err)
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}
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}()
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// ========== 10. 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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// ========== 自动周期重置定时任务 ==========
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// 每天凌晨 1:00 检查是否有班级需要执行周/月重置
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// 使用独立 done 通道避免与 quit 通道的竞态条件
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timerDone := make(chan struct{})
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go func() {
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runAutoPeriodReset := func() {
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defer func() {
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if r := recover(); r != nil {
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logger.Sugared.Errorf("自动周期重置 panic: %v", r)
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}
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}()
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semesterService.AutoPeriodReset()
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}
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// 计算距离下一个凌晨 1:00 的等待时间
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waitUntilNext1AM := func() time.Duration {
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now := time.Now()
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next := time.Date(now.Year(), now.Month(), now.Day(), 1, 0, 0, 0, now.Location())
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if now.After(next) {
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next = next.Add(24 * time.Hour)
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}
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return next.Sub(now)
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}
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timer := time.NewTimer(waitUntilNext1AM())
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defer timer.Stop()
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for {
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select {
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case <-timerDone:
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logger.Sugared.Info("定时任务收到退出信号，停止")
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return
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case <-timer.C:
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runAutoPeriodReset()
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timer.Reset(24 * time.Hour)
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}
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}
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}()
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sig := <-quit
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close(timerDone)
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logger.Sugared.Infof("收到信号 %v，正在关闭服务...", sig)
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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if err := srv.Shutdown(ctx); err != nil {
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logger.Sugared.Errorf("服务关闭异常: %v", err)
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}
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logger.Sugared.Info("服务已安全停止")
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}
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