數(shù)據(jù)綁定的目的是前端提交過來的數(shù)據(jù)和后臺數(shù)據(jù)進行映射

/*
@Author :   寒云
@Email  :   1355081829@qq.com
@Time : 2019/10/15 11:51
*/
package main

import (
    "github.com/gin-gonic/gin"
    "net/http"
    "strconv"
)

type User struct {
    Name     string `form:"user" binding:"required"`
    Password string `form:"password" binding:"required"`
}

func main() {
    r := gin.Default()
    r.POST("/login", func(c *gin.Context) {
        var user User
        _ = c.ShouldBind(&user)
        name := c.PostForm("name")
        age := c.PostForm("age")
        realAge, _ := strconv.Atoi(age)
        c.JSON(http.StatusOK, gin.H{"user": user, "name": name, "age": realAge})
    })

    _ = r.Run(":8089")
}

在這個例子中，我們定義了個名字為User的機構(gòu)體,

type User struct {
    Name     string `form:"user" binding:"required"`
    Password string `form:"password" binding:"required"`
}

通過 ShouldBind將前臺數(shù)據(jù)和我們的結(jié)構(gòu)體進行了數(shù)據(jù)綁定

      _ = c.ShouldBind(&user)

用postman模擬接口請求，我們成功的將前臺請求的數(shù)據(jù)和我們定義的結(jié)構(gòu)體綁定

image.png