golang框架性能、功能和易用性对比

package main

import (
    "fmt"
    "net/http"
    "strconv"

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

type User struct {
    ID   uint   `json:"id"`
    Name string `json:"name"`
}

var users []User

func main() {
    r := gin.Default()
    r.GET("/users", listUsers)
    r.GET("/users/:id", getUser)
    r.POST("/users/create", createUser)
    r.PUT("/users/update/:id", updateUser)
    r.DELETE("/users/delete/:id", deleteUser)
    r.Run(":8080")
}

func listUsers(c *gin.Context) {
    c.JSON(http.StatusOK, users)
}

func getUser(c *gin.Context) {
    id, _ := strconv.Atoi(c.Param("id"))
    for _, user := range users {
        if user.ID == uint(id) {
            c.JSON(http.StatusOK, user)
            return
        }
    }
    c.JSON(http.StatusNotFound, nil)
}

func createUser(c *gin.Context) {
    var newUser User
    if err := c.BindJSON(&newUser); err != nil {
        c.JSON(http.StatusBadRequest, err.Error())
        return
    }
    newUser.ID = uint(len(users) + 1)
    users = append(users, newUser)
    c.JSON(http.StatusCreated, newUser)
}

func updateUser(c *gin.Context) {
    id, _ := strconv.Atoi(c.Param("id"))
    var updatedUser User
    if err := c.BindJSON(&updatedUser); err != nil {
        c.JSON(http.StatusBadRequest, err.Error())
        return
    }
    for i, user := range users {
        if user.ID == uint(id) {
            users[i] = updatedUser
            c.JSON(http.StatusOK, updatedUser)
            return
        }
    }
    c.JSON(http.StatusNotFound, nil)
}

func deleteUser(c *gin.Context) {
    id, _ := strconv.Atoi(c.Param("id"))
    for i, user := range users {
        if user.ID == uint(id) {
            users = append(users[:i], users[i+1:]...)
            c.JSON(http.StatusOK, nil)
            return
        }
    }
    c.JSON(http.StatusNotFound, nil)
}