在使用MVC時，向服務器端發送POST請求時有時需要傳遞數組作為參數值
下面使用例子說明，首先看一下Action
[HttpPost] public ActionResult Test(List<string> model) { return Json(null, JsonRequestBehavior.AllowGet); }
方式一，構造表單元素，然后調用serialize()方法得到構造參數字符串
@{ Layout = null; } <!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Test</title>
</head>
<body>
<div>
<input type="button" id="btnAjax" value="發送請求" />
</div>
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script type="text/javascript">
var tmp = '<input type="hidden" name="model" value="1" /><input type="hidden" name="model" value="2" />'; $(function () { $("#btnAjax").click(function () { $.ajax({ url: '@Url.Action("Test")', type: 'POST', data: $(tmp).serialize(), success: function (json) { console.log(json); } }); }); }); </script>
</body>
</html>
調試模式監視參數，當點擊按鈕時，監視得到的參數如下
方式二：使用JavaScript對象作為參數傳值，參數名是與Action方法對應的參數名，參數值是JavaScript數組
@{ Layout = null; } <!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Test</title>
</head>
<body>
<div>
<input type="button" id="btnAjax" value="發送請求" />
</div>
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script type="text/javascript">
//var tmp = '<input type="hidden" name="model" value="1" /><input type="hidden" name="model" value="2" />';
var array = ["abc","123"]; $(function () { $("#btnAjax").click(function () { $.ajax({ url: '@Url.Action("Test")', type: 'POST', data: { model:array }, success: function (json) { console.log(json); } }); }); }); </script>
</body>
</html>
方式三，使用Json作為參數請求，此時Ajax需要聲明Content-Type為application/json
@{ Layout = null; } <!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Test</title>
</head>
<body>
<div>
<input type="button" id="btnAjax" value="發送請求" />
</div>
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script type="text/javascript">
//var tmp = '<input type="hidden" name="model" value="1" /><input type="hidden" name="model" value="2" />';
//var array = ["abc","123"];
$(function () { $("#btnAjax").click(function () { $.ajax({ url: '@Url.Action("Test")', type: 'POST', contentType:'application/json;charset=utf-8', data: JSON.stringify({ model:["hello","welcome"] }), success: function (json) { console.log(json); } }); }); }); </script>
</body>
</html>
上面的例子使用的是ASP.NET MVC 5