使用http.PostForm发布嵌套的json数据值？

import (
    "bytes"
    "encoding/json"
    "net/http"
    "net/url"
)

data := map[string]interface{}{
    "name": "John Doe",
    "age": 30,
    "address": map[string]interface{}{
        "street": "123 Main St",
        "city": "New York",
        "country": "USA",
    },
}

jsonData, err := json.Marshal(data)
if err != nil {
    // 错误处理
}

form := url.Values{}
form.Add("json", string(jsonData))

response, err := http.PostForm("http://example.com/api", form)
if err != nil {
    // 错误处理
}
defer response.Body.Close()

// 处理响应