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//go:build server || (!server && !client)
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package main
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import (
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"log"
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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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"github.com/noahlann/nnet/pkg/nnet"
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)
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// This example demonstrates file-based session storage.
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// Sessions are persisted to disk and survive server restarts.
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func main() {
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cfg := &nnet.Config{
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Addr: "tcp://:8083",
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Session: &nnet.SessionConfig{
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Storage: "file", // 使用文件存储
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Path: "./sessions_example", // Session文件存储路径
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Expiration: 1 * time.Hour, // Session过期时间
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},
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Codec: &nnet.CodecConfig{
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DefaultCodec: "json",
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EnableProtocolEncode: false,
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},
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}
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srv, err := nnet.NewServer(cfg)
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if err != nil {
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log.Fatal("create server:", err)
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}
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// 路由1：设置Session值
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srv.Router().RegisterString("set", func(ctx nnet.Context) error {
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// 注意：Session功能可能需要在服务器层面集成
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// 这里演示如何使用Session的概念
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// 实际使用中，Session应该通过Connection或Context访问
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connID := ctx.Connection().ID()
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return ctx.Response().Write(map[string]any{
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"action": "set",
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"conn_id": connID,
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"message": "session storage configured (file)",
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"path": cfg.Session.Path,
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"note": "Session API integration pending",
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})
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})
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// 路由2：获取Session信息
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srv.Router().RegisterString("get", func(ctx nnet.Context) error {
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connID := ctx.Connection().ID()
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return ctx.Response().Write(map[string]any{
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"action": "get",
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"conn_id": connID,
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"storage": "file",
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"path": cfg.Session.Path,
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"expiration": cfg.Session.Expiration.String(),
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})
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})
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// 路由3：计数器（演示Session持久化）
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srv.Router().RegisterString("counter", func(ctx nnet.Context) error {
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connID := ctx.Connection().ID()
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// 在实际实现中，这里应该从Session读取和更新计数器
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return ctx.Response().Write(map[string]any{
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"conn_id": connID,
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"message": "counter endpoint (session-based counting would be implemented here)",
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"note": "Session storage: file",
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})
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})
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log.Println("session_file_server listening on :8083")
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log.Printf("Session storage: file (%s)", cfg.Session.Path)
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log.Printf("Session expiration: %v", cfg.Session.Expiration)
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if err := srv.Start(); err != nil {
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log.Fatal("start server:", err)
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}
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defer srv.Stop()
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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... Sessions are persisted to disk.")
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}
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