gin获取URL路径参数

package main

//获取path（URL）参数
import (
	"net/http"

	"github.com/gin-gonic/gin"
)

func main() {
	r := gin.Default()
	r.GET("/:name/:age", func(c *gin.Context) {
		//获取路径参数
		name := c.Param("name")
		age := c.Param("age")

		c.JSON(http.StatusOK, gin.H{
			"name": name,
			"age":  age,
		})
	})

	r.Run(":9090")
}

参数绑定

原来代码很累

package main

//获取path（URL）参数
import (
	"fmt"
	"net/http"
	"os/user"

	"github.com/gin-gonic/gin"
)
type UserInfo struct{
	username string
	password string
}

func main() {
	r := gin.Default()
	r.GET("/user", func(c *gin.Context) {
		username := c.Query("username")
		password := c.Query("password")
		u := UserInfo{
			username: username,
			password: password,
		}
		fmt.Printf("%#v\n",u)
		c.JSON(http.StatusOK,gin.H{
			"massage" : "ok",
		})
		})
	})

	r.Run(":9090")
}

现在：

shouldbind非常强大，三种方式都能获取参数

package main

//获取path（URL）参数
import (
	"fmt"
	"net/http"
	"os/user"

	"github.com/gin-gonic/gin"
)
type UserInfo struct{
	Username string `form:"username"`
	Password string `form:"password"`
}

func main() {
	r := gin.Default()
	r.GET("/user", func(c *gin.Context) {
		
		var u UserInfo
		err := c.ShouldBind(u)
		if err != nil{
			c.JSON(http.StatusBadRequest,gin.H{
				"error" : err.Error(),
			})
		}else{
			//用到反射，我不知道用户给我传进来什么字段，要用反射动态获取
			fmt.Printf("%#v\n",&u)
			c.JSON(http.StatusOK,gin.H{
				"status":"ok",
			})
		}

		
		})
	})

	r.Run(":9090")
}