golang框架在高并发场景中的扩展性应对

// Server.go
package main

import (
    "context"
    "fmt"
    "github.com/gin-gonic/gin"
    "github.com/go-redis/redis/v8"
)

// Redis client
var client *redis.Client

func main() {
    // Connect to Redis
    client = redis.NewClient(&redis.Options{
        Addr:     "localhost:6379",
        Password: "", // if needed
        DB:       0,  // use default DB
    })
    defer client.Close()

    // Create Gin router
    r := gin.Default()

    r.GET("/get", func(c *gin.Context) {
        key := c.Query("key")
        // Get value from Redis
        val, err := client.Get(context.Background(), key).Result()
        if err != nil {
            c.JSON(500, gin.H{"error": "Redis error"})
            return
        }
        c.JSON(200, gin.H{"value": val})
    })

    r.POST("/set", func(c *gin.Context) {
        key := c.Query("key")
        val := c.Query("value")
        // Set value in Redis
        err := client.Set(context.Background(), key, val, 0).Err()
        if err != nil {
            c.JSON(500, gin.H{"error": "Redis error"})
            return
        }
        c.JSON(200, gin.H{"success": true})
    })

    // Start server
    r.Run() // listen and serve on 0.0.0.0:8080 (default)
}