复杂的JSON封送处理到GoLang对象

问题描述：

I need to marshal complex JSON object to GO structure.

So I have source:

"NetworkSettings": {
        "Bridge": "",
        "SandboxID": "e9736755bc41db307019fde3be0feed51086e6d3e23b0213c59bb5e43f7af214",
        "HairpinMode": false,
        "SecondaryIPAddresses": null,
        "SecondaryIPv6Addresses": null,
        "EndpointID": "2ee283787f45894c3383229d29ada1ccbb7f34b1c1e143e417e7ba75b7f5ebce",
        "Gateway": "172.17.0.1",
        "IPAddress": "172.17.0.2",
        "IPPrefixLen": 16,
        "IPv6Gateway": "",
        "MacAddress": "02:42:ac:11:00:02",
        "Networks": {
            "bridge": {
                "IPAMConfig": null,
                "Links": null,
                "Aliases": null,
                "NetworkID": "1c4788fac19973ddc73975613a2aef5a4cc2be446af458c06fa5fa162e8126ff",
                "EndpointID": "2ee283787f45894c3383229d29ada1ccbb7f34b1c1e143e417e7ba75b7f5ebce",
                "Gateway": "172.17.0.1",
                "IPAddress": "172.17.0.2",
                "IPPrefixLen": 16,
                "IPv6Gateway": "",
                "GlobalIPv6Address": "",
                "GlobalIPv6PrefixLen": 0,
                "MacAddress": "02:42:ac:11:00:02"
            }
        }

and I need to map it into object like this:

NetworkSettings struct {
    IpAddress string
    SandboxID string
    Gateway string
    Ports     map[string][]Binding
    Networks map[string]map[string]string
}

However because of Networks map[string]map[string]string I'm getting error

json: cannot unmarshal object into Go value of type string
error restoring containers: json: cannot unmarshal object into Go value of type string

But this is what I need to have a complex map of map structure.

Any idea how to do that?

我需要将复杂的JSON对象编组为GO结构。 p>

所以我有来源： p>

 “ NetworkSettings”：{
“ Bridge”：“”，
“ SandboxID”：  “ e9736755bc41db307019fde3be0feed51086e6d3e23b0213c59bb5e43f7af214”，
“ HairpinMode”：false，
“ SecondaryIPAddresses”：null，
“ SecondaryIPv6Addresses”：null，
“ EndpointID” G“ e1b3e7e7b1e3e7e7b1e7e7b1e7e7b7e7a7b1e7e7b7e7a7b1e7a7e7a7b1e7b7e7a7b6e7e7b6e7e7b6b3b0b3b0e3b0e7b使用者 
“ IPAddress”：“ 172.17.0.2”，
“ IPPrefixLen”：16，
“ IPv6Gateway”：“”，
“ MacAddress”：“ 02：42：ac：11：00：02”，\  n“网络”：{
“网桥”：{
“ IPAMConfig”：空，
“链接”：空，
“别名”：空，
“ NetworkID”：“ 1c4788fac19973ddc73975613a2aef5a4cc2be446af458c06fa5fa162e8126ff”，
“  EndpointID“：” 2ee283787f45894c3383229d29ada1ccbb7f34b1c1e143e417e7ba75b7f5ebce“，
” Gateway“：” 172.17.0.1“，
” IPAddress“：” 172.17.0.2“，
  “ IPPrefixLen”：16，
“ IPv6Gateway”：“”，
“ GlobalIPv6Address”：“”，
“ GlobalIPv6PrefixLen”：0，
“ MacAddress”：“ 02：42：ac：11：00：02  “ 
} 
} 
  code>  pre> 
 
 ，我需要将其映射到这样的对象中： p> 
 
 
  NetworkSettings  struct {
 IpAddress字符串
 SandboxID字符串
网关字符串
端口map [string] [] Binding 
网络map [string] map [string] string 
} 
  code>  pre> \  n 
 但是由于 Networks map [string] map [string] string  code>而出现错误 p> 
 
 
  json：无法解组对象 进入字符串类型的Go值\恢复容器错误：json：无法将对象解组为字符串类型的Go值
  code>  pre> 
 
 但这是我需要的复杂地图 地图结构。   p> 
 
 
有什么想法吗？ p> 
  div>

答

That error happens because some of the values in the JSON aren't strings, but are integers (IPPrefixLen for example), and therefore can't be assigned to a string variable.

There are 2 ways to address this. You could use the interface{} type, so your type definition would become:

NetworkSettings struct {
    IpAddress string
    SandboxID string
    Gateway   string
    Ports     map[string][]Binding
    Networks  map[string]map[string]interface{}
}

A better solution would probably be to define a type for the Network block:

type Network struct {
    NetworkID   string 
    EndpointID  string
    Gateway     string
    IPAddress   string
    IPPrefixLen int
    //etc...
}
type NetworkSettings struct {
    IpAddress string
    SandboxID string
    Gateway   string
    Ports     map[string][]Binding
    Networks  map[string]Network
}

复杂的JSON封送处理到GoLang对象

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