如何绑定查询字符串？

package main

import "log"
import "github.com/gin-gonic/gin"

type Person struct {
    Name    string `json:"name"`
    Address string `json:"address"`
}

func main() {
    log.Println("Hello World")
    route := gin.Default()
    route.GET("/testing", startPage)
    route.Run(":8085")
}

func startPage(c *gin.Context) {
    var person Person
    if c.BindJSON(&person) == nil {
        log.Println(person.Name)
        log.Println(person.Address)
        log.Println("Binding success...............")
    } else {
        log.Println("Binding failed...............")
    }

    c.String(200, "Success")
}

The above code works only for curl -X GET localhost:8085/testing --data '{"name":"JJ", "address":"xyz"}' -H "Content-Type:application/json" but not curl -X GET localhost:8085/testing?name=JJ&address=xyz -H "Content-Type:application/json"

if i use c.Bind(&person), binding failed both case. How can i write the above code which binds both query string and json. What is difference between passing arguments via --data and passing in query string.