Question

我尝试从Go接收数据，但是在浏览器中，我只收到一个hello world，也不错:)但是我需要一个对象->如您所见，我在后端使用了CORB规则还可以看到我的对象数组在打印功能。请帮助在浏览器中获取数据，如果我仅将json设置为输出，则将成功。请帮助了解我在做什么错除了HTTP路由器的Gin方法外，请不要提供其他信息。如您所见，我必须重写BindJson函数，因为没有它，它将收到400错误

package main

import (
    "fmt"
    "github.com/gin-gonic/gin"
    "github.com/gin-gonic/gin/binding"
    "localDbExample/config"
    "localDbExample/entities"
    "localDbExample/models"
    "net/http"
)

var router *gin.Engine

func BindJSON(c *gin.Context, obj interface{}) error {
    if err := binding.JSON.Bind(c.Request, obj); err != nil {
        c.Error(err).SetType(gin.ErrorTypeBind)
        return err
    }
    return nil
}

func main() {
    router = gin.Default()
    initializeRoutes()
    router.Run()
}

func Demo1_CallFindAll()(products []entities.Product)  {
    db,err:=config.GetMySQLDB()
    if err !=nil{
        fmt.Println(err)
    }else{
        productModel := models.ProductModel{
            Db:db,
        }
        products,err := productModel.FindAll()
        if err !=nil{
            fmt.Println(err)
        }else{
            fmt.Println(products)

            fmt.Println("Product List")
        }
    }
    return products
}

func initializeRoutes() {
    router.POST("/api", handleVerification)
    router.OPTIONS("/api", handleVerification)
}

func handleVerification(c *gin.Context) {
    if c.Request.Method == "OPTIONS" {
        // setup headers
        c.Header("Allow", "POST, GET, OPTIONS")
        c.Header("Access-Control-Allow-Origin", "*")
        c.Header("Access-Control-Allow-Headers", "origin, content-type, accept")
        c.Header("Content-Type", "application/json")
        c.JSON(http.StatusOK, gin.H{"hello": "world"})
        c.Status(http.StatusOK)
    } else if c.Request.Method == "POST" {
        c.Header("Allow", "POST, GET, OPTIONS")
        c.Header("Access-Control-Allow-Origin", "*")
        c.Header("Access-Control-Allow-Headers", "origin, content-type, accept")
        c.Header("Content-Type", "application/json")
        var tags = Demo1_CallFindAll()
      fmt.Println(tags)// [{1 Nokia1 10 2 true} {2 Nokia2 11 22 false}]
        BindJSON(c,&tags)
        c.JSON(http.StatusOK , gin.H{"hello": "world"})
    }
}

浏览器中的BindJson返回null

0 个答案: