为什么数组不会通过ajax调用发送? [英] Why the array will not send through the ajax call?

问题描述

在我的Ajax代码中，我正在向go lang api发送一个关联数组，但是go lang不会接收任何数组.为什么?

In my ajax code I'm sending an associative array to the go lang api but go lang would not receiving any array. Why?

for (var i = 1; i <= optionsArr; i++) {
    span_arr.push({
        day       : valueSelected,
        time_slug : i,
        timing    : $("#"+i).text(),
        count     : $('#select_count'+i).val()
    });
}
console.log(span_arr[1].time_slug);
$.ajax({
    url:"/api/v1/provider_spot",
    type:"POST",
    data:{span_arr:span_arr},
    dataType:"json",
    success:function(response){
        console.log(response);
    }
});

为什么这个ajax不会将数组发送到go api?在下面的mvc结构中，我想要接收此数据:

Why this ajax will not sending the array to the go api? Here in go lang following mvc structure I want to receiving this data:

 Route{"SaveProviderSpot", "POST", "/provider_spot", controller.SaveProviderSpot},

 func SaveProviderSpot(c *gin.Context) {
   fmt.Println(c.PostForm("span_arr"))
 }

推荐答案

由于双方的数组定义可能不同，因此无法将数组直接从客户端发送到服务器.

You can not send an array directly from client to server,due to the array definition may not be the same in both sides.

两种解决方法:

a.您可以在clinet中将数组转换为json字符串，然后将其作为字符串参数发送到服务器，在服务器端，您可以对其进行解析并将其转换为数组

a. You can convert the array into a json string in the clinet,then send it to server as a string parameter,in the server side,you can parse it and convert it to array

b.迭代数组，并使用一些特殊字符将其转换为字符串，还作为字符串参数传递给服务器，示例如下:

b. Iterate the array,and convert it to a string using some special characters,also pass to server as string parameter,an example is as below:

var dataStr = "";
for (var i = 1; i <= optionsArr; i++) {
    //each array element split with 3 semicolons,and each property in element split with 2 semicolons
    dataStr += valueSelected + ";;" + i + ";;" + $("#"+i).text() 
           + ";;" + $('#select_count'+i).val() + ";;;";
}
$.ajax({
    url:"/api/v1/provider_spot",
    type:"POST",
    data:{dataStr:dataStr},
    dataType:"json",
    success:function(response){
        console.log(response);
    }
});
//now it is correct

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