Golang讀取一個Json對象數組

Question

我正在使用GoLang並希望讀取該文件並能夠將每個json對象發送到REST端點。

REST端點放在一邊，我解析文件時出現問題。

package main 

    import (
     "encoding/json" 
     "fmt" 
     "io/ioutil" 
     "bytes" 
     "os" 
    ) 

    func main() { 
     type myjson struct { 
      myobjects []struct { 
       data map[string]string 
      } 
     } 
     file, e := ioutil.ReadFile("dat_one_extract.json") 
     if e != nil { 
      fmt.Printf("File Error: [%v]\n", e) 
      os.Exit(1) 
     } 

     dec := json.NewDecoder(bytes.NewReader(file)) 
     var d myjson 
     dec.Decode(&d) 


    } 

我的JSON文件看起來是這樣的：

[{ 
    "NAME1": "Y", 
    "NAME2": 1729.0, 
    "NAME3": "Y", 
    "NAME4": [ 
     { 
      "Contact Zip": "33619", 
      "Date of Contact": "01/21/2015" 
     } 
    ], 
    "NAME6": "123456789", 
    "NAME7": "Walmart", 
    "NAME8": [ 
     { 
      "State": "xx", 
      "Zip Code": "12345", 
      "Address": "12345 main street", 
      "Type": "MAILING", 
      "City": "MyTown" 
     }, 
     { 
      "State": "xx", 
      "Zip Code": "12345", 
      "Address": "12345 main street", 
      "Type": "MAILING", 
      "City": "MyTown" 
     }, 
     { 
      "State": "xx", 
      "Zip Code": "12345", 
      "Address": "12345 main street", 
      "Type": "MAILING", 
      "City": "MyTown" 
     } 
    ], 
    "NAME11": "XXXXXXX", 
    "NAME12": "11/21/2014 14:01:47", 
    "NAME13": "11/15/2014", 
    "NAME14": "11/16/1992" 
},{ 
    "NAME1": "Y", 
    "NAME2": 1729.0, 
    "NAME3": "Y", 
    "NAME4": [ 
     { 
      "Contact Zip": "33619", 
      "Date of Contact": "01/21/2015" 
     } 
    ], 
    "NAME6": "123456789", 
    "NAME7": "Walmart", 
    "NAME8": [ 
     { 
      "State": "xx", 
      "Zip Code": "12345", 
      "Address": "12345 main street", 
      "Type": "MAILING", 
      "City": "MyTown" 
     }, 
     { 
      "State": "xx", 
      "Zip Code": "12345", 
      "Address": "12345 main street", 
      "Type": "MAILING", 
      "City": "MyTown" 
     }, 
     { 
      "State": "xx", 
      "Zip Code": "12345", 
      "Address": "12345 main street", 
      "Type": "MAILING", 
      "City": "MyTown" 
     } 
    ], 
    "NAME11": "XXXXXXX", 
    "NAME12": "11/21/2014 14:01:47", 
    "NAME13": "11/15/2014", 
    "NAME14": "11/16/1992" 
}] 

我缺少訪問每個數組元素，並把它傳遞到終點？ 我不想處理元素，只需將json對象一次發送到端點1即可。

先謝謝您，併爲作爲golang noob的道歉！

Answer 1

// Parse the JSON. 
var objs interface{} 
json.Unmarshal([]byte(jsonStr), &objs) // Or use json.Decoder.Decode(...) 

// Ensure that it is an array of objects. 
objArr, ok := objs.([]interface{}) 
if !ok { 
    log.Fatal("expected an array of objects") 
} 

// Handle each object as a map[string]interface{}. 
for i, obj := range objArr { 
    obj, ok := obj.(map[string]interface{}) 
    if !ok { 
     log.Fatalf("expected type map[string]interface{}, got %s", reflect.TypeOf(objArr[i])) 
    } 
    fmt.Printf("i=%d, o=%T\n", i, obj) // Do something with the object... 
}