asp.net MVC 使用JQuery.Ajax

使用到：Jquery.js 以及 Newtonsoft.Json.dll

客户端调用方式：

$("#ButAjax").click(function() {
$.ajax({
type: "POST", //默认是GET
url: "/AjaxTest/getPerson",
data: "ID=1&FirstName=C&LastName=HY",
async: true, //异步
cache: false, //不加载缓存
success: function(obj) {
alert(obj.ID + obj.FirstName + obj.LastName + obj.Man);
},
error: function() {
alert("请求失败");
}
});
});

$("#ButAjax2").click(function() {
$.ajax({
type: "POST", //默认是GET
url: "/AjaxTest/getPerson2?ID=3&FirstName=C&LastName=HY",
async: true, //异步
cache: false, //不加载缓存
success: function(obj) {
alert(obj.ID + obj.FirstName + obj.LastName + obj.Man);
},
error: function() {
alert("请求失败");
}
});
});

$("#ButAjax3").click(function() {
$.ajax({
type: "POST", //默认是GET
url: "/AjaxTest/getString",
async: true, //异步
cache: false, //不加载缓存
success: function(str) {
alert(str);
},
error: function() {
alert("请求失败");
}
});
});

$("#ButAjax4").click(function() {
$.ajax({
type: "POST", //默认是GET
url: "/AjaxTest/getJsonString",
async: true, //异步
cache: false, //不加载缓存
success: function(str) {
var obj = eval(str);
$.each(obj, function(item, value) {
alert(item + ":" + obj[item]);
});
},
error: function() {
alert("请求失败");
}
});
});

//================================================================

$("#ButJson1").click(function() {
$.getJSON("/AjaxTest/getJson1", { ID: "22", FirstName: "C1", LastName: "HY1" }, function(json) {
alert(json);
$.each(json, function(item, value) {
alert(item + ":" + json[item]);
});
});
});

$("#ButJson2").click(function() {
$.getJSON("/AjaxTest/getJson2", { ID: "22", FirstName: "C1", LastName: "HY1" }, function(json) {
alert(json);
$.each(json, function(item, value) {
alert(item + ":" + json[item]);
});
});
});

$("#ButJson3").click(function() {
$.getJSON("/AjaxTest/getJson3", { ID: "22", FirstName: "C1", LastName: "HY1" }, function(json) {
alert(json);
$.each(json, function(item, value) {
alert(item + ":" + json[item]);
});
});
});

$("#ButJson4").click(function() {
$.getJSON("/AjaxTest/getJsonSerializingJson", { ID: "22", FirstName: "C1", LastName: "HY1" }, function(json) {
alert(json);
$.each(json, function(item, value) {
alert(item + ":" + json[item]);
});
});
});

$("#ButJson5").click(function() {
$.getJSON("/AjaxTest/getJsonDeSerializingJson", { json: ‘{"ID":201,"FirstName":"C","LastName":"HY","Man":true}‘ }, function(json) {
alert(json);
$.each(json, function(item, value) {
alert(item + ":" + json[item]);
});
});
});

//================================================================

$("#ButSerializing").click(function() {
$.ajax({
type: "POST",
url: "/AjaxTest/testSerializingJson",
data: "ID=101&FirstName=C&LastName=HY&Man=false",
async: true,
cache: false,
success: function(obj) {
alert(obj);
},
error: function() {
alert("请求失败");
}
});
});

$("#ButDeSerializing").click(function() {
$.ajax({
type: "POST",
url: "/AjaxTest/testDeSerializingJson",
data: ‘json={"ID":201,"FirstName":"C","LastName":"HY","Man":true}‘,
async: true,
cache: false,
success: function(obj) {
alert(obj.ID + obj.FirstName + obj.LastName + obj.Man);
},
error: function() {
alert("请求失败");
}
});
});

$("#ButSerializingList").click(function() {
$.ajax({
type: "POST",
url: "/AjaxTest/serializingList",
data: "",
async: true,
cache: false,
success: function(obj) {
alert(obj + "length:" + obj.length);
$.each(obj, function() {
$.each(this, function(item, value) {
alert(item + ":" + json[item]);
});
});
},
error: function() {
alert("请求失败");
}
});
});

Controllers 代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization.Json;
using System.Web;
using System.Web.Mvc;

namespace MvcApplication.Controllers
{
public class Person
{
public int ID { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public bool Man { get; set; }
}

public class AjaxTestController : Controller
{
#region ===============$.Ajax测试=================
/// <summary>
/// 测试返回对象
/// </summary>
/// <param name="form"></param>
/// <returns></returns>
public JsonResult getPerson(FormCollection form)
{
Person p = new Person
{
ID = int.Parse(form["ID"]),
FirstName = form["FirstName"],
LastName = form["LastName"]
};
return Json(p);
}

/// <summary>
/// 经测试发现：当Global中定义{controller}/{action}/{id}时
/// 前台url?ID=3&FirstName=C&LastName=HY传到后台时ID值为""
/// 所以把Global中定义为{controller}/{action}/{uid}
/// </summary>
/// <param name="ID"></param>
/// <param name="FirstName"></param>
/// <param name="LastName"></param>
/// <returns></returns>
public JsonResult getPerson2(string ID, string FirstName, string LastName)
{
Person p = new Person
{
ID = int.Parse(ID),
FirstName = FirstName,
LastName = LastName
};
return Json(p);
}

/// <summary>
/// 测试返回字符串
/// </summary>
/// <returns></returns>
public ContentResult getString()
{
return Content("{id:‘2‘,FirstName:‘C‘,LastName:‘HY‘}");
}

/// <summary>
/// 测试返回json字符串
/// </summary>
/// <returns></returns>
public ContentResult getJsonString()
{
return Content("({id:‘2‘,FirstName:‘C‘,LastName:‘HY‘})");
}

#endregion

#region ==============$.getJSON(返回json格式测试)============

/// <summary>
/// 经测试发现必须是双引号（"）不能是单引号(‘)
/// </summary>
/// <param name="Code"></param>
/// <param name="FirstName"></param>
/// <param name="LastName"></param>
/// <returns></returns>
public ContentResult getJson1(string ID, string FirstName, string LastName)
{
return Content("{\"id\":1,\"name\":\"chy\",\"flag\":true}");
}

/// <summary>
/// 经测试发现必须是双引号（"）不能是单引号(‘)
/// </summary>
/// <param name="Code"></param>
/// <param name="FirstName"></param>
/// <param name="LastName"></param>
/// <returns></returns>
public ContentResult getJson2(string ID, string FirstName, string LastName)
{
return Content("{\"id\":\"2\",\"name\":\"chy\"}");
}

/// <summary>
/// 经测试发现必须是双引号（"）不能是单引号(‘)
/// 产生错误前台没反应
/// </summary>
/// <param name="Code"></param>
/// <param name="FirstName"></param>
/// <param name="LastName"></param>
/// <returns></returns>
public ContentResult getJson3(string ID, string FirstName, string LastName)
{
return Content("{‘id‘:‘3‘}");
}

#endregion

#region============Newtonsoft.Json.dll(json序列化和反序列化测试)=============

/// <summary>
/// $.Ajax序列化Json
/// </summary>
/// <param name="ID"></param>
/// <param name="FirstName"></param>
/// <param name="LastName"></param>
/// <returns></returns>
public ContentResult testSerializingJson(FormCollection form)
{
Person p = new Person
{
ID = int.Parse(form["ID"]),
FirstName = form["FirstName"],
LastName = form["LastName"]
};
return Content(Newtonsoft.Json.JsonConvert.SerializeObject(p));
}

/// <summary>
/// $.Ajax反序列化json
/// </summary>
/// <param name="form"></param>
/// <returns></returns>
public JsonResult testDeSerializingJson(FormCollection form)
{
Person p = Newtonsoft.Json.JsonConvert.DeserializeObject<Person>(form["json"].ToString());
return Json(p);
}

/// <summary>
/// $.getJSON序列化Json
/// </summary>
/// <param name="ID"></param>
/// <param name="FirstName"></param>
/// <param name="LastName"></param>
/// <returns></returns>
public ContentResult getJsonSerializingJson(string ID, string FirstName, string LastName)
{
Person p = new Person
{
ID = int.Parse(ID),
FirstName = FirstName,
LastName = LastName
};
return Content(Newtonsoft.Json.JsonConvert.SerializeObject(p));
}

/// <summary>
/// $.getJSON反序列化json
/// </summary>
/// <param name="form"></param>
/// <returns></returns>
public ContentResult getJsonDeSerializingJson(string json)
{
Person p = Newtonsoft.Json.JsonConvert.DeserializeObject<Person>(json);
return Content(Newtonsoft.Json.JsonConvert.SerializeObject(p));
}

#endregion

#region================返回集合================

public JsonResult serializingList()
{
List<Person> ls = new List<Person>();
ls.Add(new Person
{
ID = 1,
FirstName = "C",
LastName = "HY",
Man = false
});

ls.Add(new Person
{
ID = 2,
FirstName = "Z",
LastName = "JJ",
Man = true
});
return Json(ls);
}

public JsonResult deSerializingList(string json)
{
List<Person> listP = new List<Person>();

List<string> listStr = json.Split(‘,‘).ToList<string>();

foreach (string s in listStr)
{
listP.Add(Newtonsoft.Json.JsonConvert.DeserializeObject<Person>(s));
}

return Json(listP);
}

#endregion
}
}

转载原文：http://blog.163.com/china__xuhua/blog/static/1997231692011101842121717/