英文:
return json parsed output in for loop in golang
问题
你想从这个函数中返回下面的JSON响应output，以便在另一个函数中使用返回的值。但是在for循环中你无法这样做，有没有解决办法呢？
我看到了一些解决方案，但不太清楚如何将下面的JSON字符串fmt.Sprintf("Name : %s\nMobile : %s\nEmail : %s\nCarrier : %s\nCity : %s\n", p.Name, p.Phone.Mobile, p.INTaddress.Email, p.Phone.Carrier, p.Address.City)赋值给一个切片。
英文:
i want to return the below json response output from this function, so i can use that returned value in another function.
but in the for loop i cant able to do that
is there any solution for this.
func Search_num(mobilenumber string) {
//.......get request.......
body, err := io.ReadAll(search_res.Body)
if err != nil {
log.Fatalln(err)
}
defer search_res.Body.Close()
var jsonbody Response
if err := json.Unmarshal(body, &jsonbody); err != nil {
log.Fatalln(err)
}
for _, p := range jsonbody.Data {
output := fmt.Sprintf("Name : %s\nMobile : %s\nEmail : %s\nCarrier : %s\nCity : %s\n", p.Name, p.Phone.Mobile, p.INTaddress.Email, p.Phone.Carrier, p.Address.City)
}
return output
}
seen some solutions but didnt understood how to assign the below json fmt.Sprintf("Name : %s\nMobile : %s\nEmail : %s\nCarrier : %s\nCity : %s\n", p.Name, p.Phone.Mobile, p.INTaddress.Email, p.Phone.Carrier, p.Address.City) in a slice 
答案1
得分: 2
像这样，在for循环中不使用:=，而是使用=。并且for循环看起来是不需要的，只需根据需要使用jsonbody.Data[0]或jsonbody.Data[len(jsonbody.Data)-1]。
func Search_num(mobilenumber string) {
//.......获取请求.......
body, err := io.ReadAll(search_res.Body)
if err != nil {
log.Fatalln(err)
}
defer search_res.Body.Close()
var jsonbody Response
if err := json.Unmarshal(body, &jsonbody); err != nil {
log.Fatalln(err)
}
var output string
for _, p := range jsonbody.Data {
output = fmt.Sprintf("姓名：%s\n手机号：%s\n电子邮件：%s\n运营商：%s\n城市：%s\n", p.Name, p.Phone.Mobile, p.INTaddress.Email, p.Phone.Carrier, p.Address.City)
}
return output
}
英文:
like this, output not use := in the for range, just use = 。 and for loop sees not need, just you demand use jsonbody.Data[0] or jsonbody.Data[len(jsonbody.Data)-1]
func Search_num(mobilenumber string) {
//.......get request.......
body, err := io.ReadAll(search_res.Body)
if err != nil {
log.Fatalln(err)
}
defer search_res.Body.Close()
var jsonbody Response
if err := json.Unmarshal(body, &jsonbody); err != nil {
log.Fatalln(err)
}
var output string
for _, p := range jsonbody.Data {
output = fmt.Sprintf("Name : %s\nMobile : %s\nEmail : %s\nCarrier : %s\nCity : %s\n", p.Name, p.Phone.Mobile, p.INTaddress.Email, p.Phone.Carrier, p.Address.City)
}
return output
}
答案2
得分: 0
如果我理解正确，你有一个格式为json的数据：
[
{"name" : "name1", "mobile": "123", "email": "email1@example.com", "carrier": "carrier1", "city", "city1"},
{"name" : "name2", "mobile": "1234", "email": "email2@example.com", "carrier": "carrier2", "city", "city2"}
...
]
你想要在这个数据中搜索，找到对应的号码（例如1234），并返回整个结构，使用你的Sprintf进行格式化。
如果你的Response结构体如下所示：
type Response struct {
Name string
Mobile string
Email string
Carrier string
City string
}
那么你需要将它们提供给Unmarshaler来获取它们。像这样：
func Search_num(mobilenumber string) string {
//.......获取请求.......
body, err := io.ReadAll(search_res.Body)
if err != nil {
log.Fatalln(err)
}
defer search_res.Body.Close()
var responses []Response
if err := json.Unmarshal(body, &responses); err != nil {
log.Fatalln(err)
}
for _, p := range responses {
if p.Mobile == mobilenumber {
return fmt.Sprintf("Name : %s\nMobile : %s\nEmail : %s\nCarrier : %s\nCity : %s\n", p.Name, p.Mobile, p.Email, p.Carrier, p.City)
}
}
return mobilenumber+" not found"
}
英文:
If I get this correctly you have a json of the format:
[
{"name" : "name1", "mobile": "123", "email": "email1@example.com", "carrier": "carrier1", "city", "city1"},
{"name" : "name2", "mobile": "1234", "email": "email2@example.com", "carrier": "carrier2", "city", "city2"}
...
]
which you would like to search through, find the number (eg 1234) and return the whole struct formatted using your Sprintf
If your Response struct is like:
type Response struct {
Name string
Mobile string
Email string
Carrier string
City string
}
Then you need to provide a slice of those into the Unmarshaler to get them back. Like:
func Search_num(mobilenumber string) string {
//.......get request.......
body, err := io.ReadAll(search_res.Body)
if err != nil {
log.Fatalln(err)
}
defer search_res.Body.Close()
var responses []Response
if err := json.Unmarshal(body, &responses); err != nil {
log.Fatalln(err)
}
for _, p := range responses {
if p.Mobile == mobilenumber {
return fmt.Sprintf("Name : %s\nMobile : %s\nEmail : %s\nCarrier : %s\nCity : %s\n", p.Name, p.Mobile, p.Email, p.Carrier, p.City)
}
}
return mobilenumber+" not found"
}
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