JQuery.getJSON 从aspx页面返回JSON数据 . 2012-01-05 12:44:02| 分类： asp.net |举报|字号 订阅 1. 发送请求的WebForm1.aspx <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Benq.Flower.WebAdmin.Module.WebForm1" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script src="../javascript/jquery-1.2.3.pack.js" type="text/javascript" language="javascript"></script> <script type="text/javascript" language="javascript"> function getData() { $.getJSON("WebForm2.aspx?jsoncallback=?", function(data) { $.each(data.items, function(i, item) { $("<div></div>") .text(item.title) .css("color", item.color) .appendTo($("#listbox")); }); } ); } </script> </head> <body> <form id="form1" runat="server"> <div> <input id="Button1" type="button" value="click to get Json" onclick="javaScript:getData();" /> </div> <div id="listbox"> </div> </form> </body> </html> view plaincopy to clipboardprint? <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Benq.Flower.WebAdmin.Module.WebForm1" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script src="../javascript/jquery-1.2.3.pack.js" type="text/javascript" language="javascript"></script> <script type="text/javascript" language="javascript"> function getData() { $.getJSON("WebForm2.aspx?jsoncallback=?", function(data) { $.each(data.items, function(i, item) { $("<div></div>") .text(item.title) .css("color", item.color) .appendTo($("#listbox")); }); } ); } </script> </head> <body> <form id="form1" runat="server"> <div> <input id="Button1" type="button" value="click to get Json" onclick="javaScript:getData();" /> </div> <div id="listbox"> </div> </form> </body> </html> <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Benq.Flower.WebAdmin.Module.WebForm1" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script src="../javascript/jquery-1.2.3.pack.js" type="text/javascript" language="javascript"></script> <script type="text/javascript" language="javascript"> function getData() { $.getJSON("WebForm2.aspx?jsoncallback=?", function(data) { $.each(data.items, function(i, item) { $("<div></div>") .text(item.title) .css("color", item.color) .appendTo($("#listbox")); }); } ); } </script> </head> <body> <form id="form1" runat="server"> <div> <input id="Button1" type="button" value="click to get Json" onclick="javaScript:getData();" /> </div> <div id="listbox"> </div> </form> </body> </html> 2. 提供数据的WebForm2.aspx view plaincopy to clipboardprint? public partial class WebForm2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { string callback = Request.QueryString["jsoncallback"]; string data = "{"title": "Recent Uploads tagged cat","link": "http://www.sina.com.cn","items": [{"title": "Russell 003","color": "red"},{"title": "Cat [07.04.11]","color": "yellow"}]}"; string result = string.Format("{0}({1})", callback, data); Response.Expires = -1; Response.Clear(); Response.ContentEncoding = Encoding.UTF8; Response.ContentType = "application/json"; Response.Write(result); Response.Flush(); Response.End(); } } view plaincopy to clipboardprint? public partial class WebForm2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { string callback = Request.QueryString["jsoncallback"]; string data = "{"title": "Recent Uploads tagged cat","link": "http://www.sina.com.cn","items": [{"title": "Russell 003","color": "red"},{"title": "Cat [07.04.11]","color": "yellow"}]}"; string result = string.Format("{0}({1})", callback, data); Response.Expires = -1; Response.Clear(); Response.ContentEncoding = Encoding.UTF8; Response.ContentType = "application/json"; Response.Write(result); Response.Flush(); Response.End(); } } public partial class WebForm2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { string callback = Request.QueryString["jsoncallback"]; string data = "{"title": "Recent Uploads tagged cat","link": "http://www.sina.com.cn","items": [{"title": "Russell 003","color": "red"},{"title": "Cat [07.04.11]","color": "yellow"}]}"; string result = string.Format("{0}({1})", callback, data); Response.Expires = -1; Response.Clear(); Response.ContentEncoding = Encoding.UTF8; Response.ContentType = "application/json"; Response.Write(result); Response.Flush(); Response.End(); } } 注意返回数据的格式 string.Format("{0}({1})", callback, data)