jQuery Ajax向服务端传递数组参数值的实例代码

2019-11-19 15:34:34

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在使用MVC时，向服务器端发送POST请求时有时需要传递数组作为参数值

下面使用例子说明，首先看一下Action

[HttpPost]public ActionResult Test(List<string> model){ return Json(null, JsonRequestBehavior.AllowGet);}

方式一，构造表单元素，然后调用serialize()方法得到构造参数字符串

@{ 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="发送请求" /> </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>

调试模式监视参数，当点击按钮时，监视得到的参数如下

方式二：使用JavaScript对象作为参数传值，参数名是与Action方法对应的参数名，参数值是JavaScript数组

@{ 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="发送请求" /> </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作为参数请求，此时Ajax需要声明Content-Type为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="发送请求" /> </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>