我的本地主机服务器正在运行,它只是 docker 中的容器进程。我正在尝试实现一个 Go 客户端来构建用于创建、列出、更新、删除功能的 REST api。当我尝试点击 URL 时,程序成功退出但给我一个空响应。我进一步观察到,响应类型是“分 block ”的,内容长度为 -1。我是 Go 的新手,试图弄清楚可能的原因是什么,或者任何人都可以为这个问题提供解决方案。这是我的代码 - {
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
)
type Payload struct {
Stuff Data
}
type Data struct {
Id string
Links Links_container
Actions Actions_container
AccountID string
AgentID string
AllocationState string
Compute string
Created string
}
type Links_container map[string]string
type Actions_container map[string]string
func main() {
url := "http://localhost:8080/v1/containers"
res, err := http.Get(url)
if err != nil {
fmt.Println(err)
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
if err != nil {
fmt.Println(err)
}
var p Payload
err = json.Unmarshal(body, &p)
if err != nil {
panic(err)
}
fmt.Println(p.Stuff.AccountID, "\n", p.Stuff.Actions, "\n",
p.Stuff.AgentID, "\n", p.Stuff.AllocationState, "\n", p.Stuff.Compute,
"\n", p.Stuff.Created, "\n", p.Stuff.Id, "\n", p.Stuff.Links)
}
输出-
map []
map []
这是服务器的 JSON 输出 -
{
"type": "collection",
"resourceType": "container",
"links": {
"self": "…/v1/containers",
},
"createTypes": { },
"actions": { },
"data": [ 2 items
{
"id": "1i2",
"type": "container",
"links": { … },
"actions": { … },
"accountId": "1a1",
"agentId": null,
"allocationState": "active",
"compute": null,
"created": "2014-11-13T23:47:08Z",
"createdTS": 1415922428119,
"data": { … },
"description": null,
"domain": null,
"firstRunning": "2014-11-13T23:49:16Z",
"firstRunningTS": 1415922556030,
"hostname": null,
"imageId": "1i1",
"imageUuid": "docker:dockerfile/ghost:latest",
"instanceTriggeredStop": "stop",
"kind": "container",
"memoryMb": 256,
"name": "dockercontainer",
"primaryAssociatedIpAddress": null,
"primaryIpAddress": "0.0.0.0.",
"removeTime": null,
"removed": null,
"requestedHostId": "1h1",
"startOnCreate": true,
"state": "running",
"token": "xyz",
"transitioning": "no",
"transitioningMessage": null,
"transitioningProgress": null,
"userdata": null,
"uuid": "29614f31-4322-4af4-9a55-d9c9395f5cb7",
"validHostIds": null,
"zoneId": "1z1",
"environment": { },
"command": null,
"commandArgs": [ ],
"directory": null,
"user": null,
"publishAllPorts": false,
"privileged": false,
"dockerVolumes": null,
"ports": [ ],
},
{ … },
],
"sortLinks": { … },
"pagination": { … },
"sort": null,
"filters": { … },
"createDefaults": { },
最佳答案
您需要更改几项才能使其正常工作。
您粘贴的 JSON 无效(使用 linter 检查它)。一旦确定传入的是有效的 JSON,就需要对 go 代码进行如下修改:
- 需要用选项来“装饰”字段,告诉 JSON 解析器字段名称是什么
Payload
结构根据您提供的 JSON 描述包含一段Data
修改后的代码如下:
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
)
type Payload struct {
Stuff []Data `json:"data"`
}
type Data struct {
Id string `json:"id"`
Links Links_container `json:"links"`
Actions Actions_container `json:"actions"`
AccountID string `json:"accountId"`
AgentID string `json:"agentId"`
AllocationState string `json:"allocationState"`
Compute string `json:"compute"`
Created string `json:"created"`
}
type Links_container map[string]string
type Actions_container map[string]string
func main() {
url := "http://localhost:8080/v1/containers"
res, err := http.Get(url)
if err != nil {
fmt.Println(err)
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
if err != nil {
fmt.Println(err)
}
var p Payload
err = json.Unmarshal(body, &p)
if err != nil {
panic(err)
}
for _, stuff := range p.Stuff {
fmt.Println(stuff.AccountID, "\n", stuff.Actions, "\n",
stuff.AgentID, "\n", stuff.AllocationState, "\n", stuff.Compute,
"\n", stuff.Created, "\n", stuff.Id, "\n", stuff.Links)
}
}
关于rest - 使用 Go 向本地主机服务器发出 GET http 请求时的空响应,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/26943619/