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97 lines
2.3 KiB
97 lines
2.3 KiB
package cmd
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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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"sync"
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"syscall"
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"time"
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"github.com/gorilla/mux"
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)
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func Serve(srv *http.Server) {
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var wg sync.WaitGroup
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wg.Add(1)
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go func() {
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defer wg.Done()
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if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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log.Fatalf("Error starting server: %v\n", err)
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}
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}()
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// 监听退出信号
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ctx, cancel := context.WithCancel(context.Background())
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go func() {
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c := make(chan os.Signal, 1)
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signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
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<-c
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log.Println("Received signal, gracefully shutting down...")
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cancel()
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}()
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<-ctx.Done()
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shutdownCtx, shutdownCancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer shutdownCancel()
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if err := srv.Shutdown(shutdownCtx); err != nil {
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log.Printf("Error during server shutdown: %v\n", err)
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}
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wg.Wait()
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}
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type loggingMiddleware struct {
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}
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func (l loggingMiddleware) Middleware(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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startTime := time.Now()
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defer func() {
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log.Printf(
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"%s %s %s %v",
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r.Method,
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r.URL.Path,
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r.Proto,
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time.Since(startTime),
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)
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}()
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next.ServeHTTP(w, r)
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})
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}
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func recoverMiddleware(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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defer func() {
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if err := recover(); err != nil {
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// log.Printf("Recovered from panic: %v", err)
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// http.Error(w, "Internal Server Error", http.StatusInternalServerError)
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ErrorMsg(w, "Internal Server Error:"+fmt.Sprintf("%v", err))
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}
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}()
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next.ServeHTTP(w, r)
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})
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}
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// CORS 中间件
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func corsMiddleware() mux.MiddlewareFunc {
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allowHeaders := "Content-Type, Accept, Authorization, Origin,Pwd"
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allowMethods := "GET, POST, PUT, DELETE, OPTIONS"
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Access-Control-Allow-Methods", allowMethods)
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w.Header().Set("Access-Control-Allow-Headers", allowHeaders)
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// 如果是预检请求(OPTIONS),直接返回 200 OK
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if r.Method == http.MethodOptions {
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w.WriteHeader(http.StatusOK)
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return
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}
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next.ServeHTTP(w, r)
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})
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}
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}
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