如何在不编组的情况下将结构从中间件传递到Gin中的处理程序？

package main

import (
    "github.com/gin-gonic/gin"
    "net/http"
)

type MyStruct struct {
    Message string
}

func main() {
    router := gin.Default()

    // 中间件
    router.Use(func(c *gin.Context) {
        // 创建结构体对象
        myStruct := MyStruct{
            Message: "Hello, World!",
        }
        // 将结构体对象保存到Context中
        c.Set("myStruct", myStruct)
        c.Next()
    })

    // 处理程序
    router.GET("/", func(c *gin.Context) {
        // 从Context中获取结构体对象
        myStruct, ok := c.Get("myStruct")
        if !ok {
            c.JSON(http.StatusInternalServerError, gin.H{
                "error": "Failed to get structure from context",
            })
            return
        }
        // 断言结构体类型并使用
        myStructTyped, ok := myStruct.(MyStruct)
        if !ok {
            c.JSON(http.StatusInternalServerError, gin.H{
                "error": "Failed to cast structure from context",
            })
            return
        }
        c.JSON(http.StatusOK, gin.H{
            "message": myStructTyped.Message,
        })
    })

    router.Run(":8080")
}