英文:
this.input.get() not working beego
问题
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1package mainimport ("database/sql""flag""fmt""github.com/astaxie/beego")type User struct {username stringpassword string}type MainController struct {beego.Controller}func (this *MainController) Post() {this.Ctx.WriteString("hello world")result := this.Input()fmt.Println("eedwedwe", this.Input().Get("username"))fmt.Println("input value is", result)fmt.Println("eedwedwe", result.Get("Username"))send := User{username: "vijay", password: "vk18"}this.Data["json"] = &sendthis.ServeJSON()}func main() {beego.Router("/", &MainController{})beego.Run()}
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请求如下所示：
curl -X POST http://localhost:8080/ -d '{"username" : "admin", "password":"admin"}'
在请求命中beego服务器后，我尝试访问请求中的用户名，但显示为空
输出如下所示：
<!-- begin snippet: js hide: false console: true babel: false -->
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2017/02/17 12:56:59 [I] [asm_amd64.s:2086] http server Running on http://:8080eedwedweinput value is map[{"username" : "admin", "password":"admin"}:[]]eedwedwe
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英文:
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-html -->
1package mainimport ("database/sql""flag""fmt""github.com/astaxie/beego")type User struct {username stringpassword string}type MainController struct {beego.Controller}func (this *MainController) Post() {this.Ctx.WriteString("hello world")result := this.Input()fmt.Println("eedwedwe", this.Input().Get("username"))fmt.Println("input value is", result)fmt.Println("eedwedwe", result.Get("Username"))send := User{username: "vijay", password: "vk18"}this.Data["json"] = &sendthis.ServeJSON()}func main() {beego.Router("/", &MainController{})beego.Run()}
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and request is as follows
curl -X POST http://localhost:8080/ -d '{"username" : "admin", "password":"admin"}'
after request has hit beego server i am trying to access username in the request but its showing empty
and the outpit is
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-html -->
2017/02/17 12:56:59 [I] [asm_amd64.s:2086] http server Running on http://:8080eedwedweinput value is map[{"username" : "admin", "password":"admin"}:[]]eedwedwe
<!-- end snippet -->
答案1
得分: 2
在你提供的代码中声明了一个结构体（Structure）：
type User struct {username stringpassword string}
要访问结构体的值，首字母应该大写，例如：
type User struct {Username stringPassword string}
而在进行 JSON 编码和解码时，可以使用 json.Unmarshal() 和 json.Marshal() 函数。
英文:
Declared Structure in your code given below
type User struct {
username string
password string
}
To access the values of Structure Values first character should be Capital.example given below.
type User struct {
Username string
Password string
}
And json encoding and decoding use
json.Unmarshal(), json.Marshal() function.
答案2
得分: 1
你需要从请求体中解析JSON数据，更多信息请参考这里。
例如：
u := &User{}err := json.Unmarshal(this.Ctx.Input.RequestBody, u)
英文:
you need unmarshal json data from request body , more see here
e.g:
u := &User{}err:= json.Unmarshal(this.Ctx.Input.RequestBody, u)
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
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