适合新手学习的轻量级 Go 框架

go install github.com/gin-gonic/gin@latest

package main

import "github.com/gin-gonic/gin"

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

    router.GET("/", func(c *gin.Context) {
        c.String(200, "Hello, World!")
    })

    router.Run(":8080")
}

package main

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

type User struct {
    ID   int
    Name string
}

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

    router.GET("/users", func(c *gin.Context) {
        users := []User{
            {1, "John"},
            {2, "Doe"},
        }
        c.JSON(http.StatusOK, users)
    })

    router.GET("/users/:id", func(c *gin.Context) {
        id := c.Param("id")
        // 从数据库获取用户数据
        user := getUserFromDB(id)
        if user == nil {
            c.JSON(http.StatusNotFound, gin.H{
                "error": "User not found",
            })
            return
        }
        c.JSON(http.StatusOK, user)
    })

    router.Run(":8080")
}