Golang如何解析JSON网络数据

type User struct {
    Name  string `json:"name"`
    Age   int    `json:"age"`
    Email string `json:"email"`
}

package main

import (
    "encoding/json"
    "fmt"
    "io/ioutil"
    "log"
    "net/http"
)

func main() {
    resp, err := http.Get("https://api.example.com/user")
    if err != nil {
        log.Fatal("请求失败:", err)
    }
    defer resp.Body.Close()

    body, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        log.Fatal("读取响应失败:", err)
    }

    var user User
    if err := json.Unmarshal(body, &user); err != nil {
        log.Fatal("解析JSON失败:", err)
    }

    fmt.Printf("用户: %+v\n", user)
}

var data map[string]interface{}
if err := json.Unmarshal(body, &data); err != nil {
    log.Fatal("解析失败:", err)
}
fmt.Println("名称:", data["name"])
fmt.Println("年龄:", data["age"])

var user User
if err := json.NewDecoder(resp.Body).Decode(&user); err != nil {
    log.Fatal("解码失败:", err)
}