Bind the GET request parameters

type Person struct {
    Name string `form:"name"`
    Age  int    `form:"age"`
}

You need to define a structure that corresponds to the parameter. In this case, the form corresponds to the parameter name

func main() {
  r := gin.Default()
  r.Handle("GET", "/hello", func(context *gin.Context) {
  var person Person
  err := context.ShouldBindQuery(&person)
  if err != nil {
    fmt.Println(err.Error())
  }
  fmt.Println(person.Name, person.Age)
  context.Writer.Write([]byte("hello,"))
  })
  r.Run()
}

Use context.shouldbindQuery (& Person) to get arguments and assign values to Person

Bind the POST request parameter, which is basically the same as the GET request, except ShouldBindQuery is replaced with ShouldBind

r.Handle("POST", "/hellopost", func(context *gin.Context) {
  var person Person
  err := context.ShouldBind(&person)
  if err != nil {
    fmt.Println(err.Error())
  }
  fmt.Println(person.Name, person.Age)
  context.Writer.Write([]byte("hello,"))
  })

The binding JSON format parameter uses context.bindjson (& Person), otherwise identical

r.Handle("POST", "/hellojson", func(context *gin.Context) {
  var person Person
  err := context.BindJSON(&person)
  if err != nil {
    fmt.Println(err.Error())
  }
  fmt.Println(person.Name, person.Age)
  context.Writer.Write([]byte("hello,"))
  })