在网上找了半天关于如何从前端json传过来的数据,到后台获取。
主要思路如下,通过JsonParamFilter类来序列化从前端获取的数据。
JsonParamFilter.cs:
代码using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.Serialization; // 需要引用 System.Runtime.Serialization
using System.Runtime.Serialization.Json; // 需要引用 System.ServiceModel.Web
using System.Web;
using System.Web.Mvc;
///<summary>
///使Action Method可以接收序列化后的JSON对象并转换为强类型参数
///</summary>
public class JsonParamFilter : ActionFilterAttribute
{
///<summary>
///类型名称
///</summary>
public Type TargetType { get; set; }
///<summary>
///类型对应的参数名称
///</summary>
public string Param { get; set; }
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
if ((filterContext.HttpContext.Request.ContentType ?? string.Empty).Contains("application/json"))
{
try
{
object o = new DataContractJsonSerializer(TargetType).ReadObject(filterContext.HttpContext.Request.InputStream);
filterContext.ActionParameters[Param] = o;
}
catch { }
}
}
}
Action Method里的使用方法:
[JsonParamFilter(TargetType = typeof(EmployeeInfo), Param = "employeeInfo")]
public ActionResult TestJson(EmployeeInfo employeeInfo)
{
return Json(employeeInfo);
}
客户端调用:
<script type="text/javascript">
var employee = new Object();
employee.Name = "人员1";
employee.Age = 25;
employee.Salary = 12345;
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "/Home/TestJson/",
data: $.toJSON(employee), // 序列化JSON对象,用了一个叫 jquery-json 的插件
dataType: "json",
success: function(json) {
alert("Name:" + json.Name + ", Age:" + json.Age + ", Salary:" + json.Salary);
}
});
</script>
jquery-json 插件下载:jquery.json-2.2.js
来源:博客园
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