如何在AJAX应用中访问ADO.NET Data Service（续）——基于jquery框架

来源：互联网发布：fotor mac版编辑：程序博客网时间：2024/06/05 16:23

上一篇演示了如何基于Microsoft ASP.NET AJAX框架实现对ADO.NET Data Service的调用（增删改查）。下面的例子则是直接基于jquery框架的

需要注意的是，凡是要发送给服务的数据，contentType必须设置为application/json，而且要设置data的时候，要转换为json字符串。

在接收数据的时候，dataType要设置为json，也就是说服务会直接返回json数据给客户端，这样操作就方便多了。

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="jquery-1.3.2-vsdoc.js" type="text/javascript">script>        "text/javascript" language="javascript">        $(function() {            $("#query").click(function() {                //发起一个异步查询                $.ajax({                    type: "GET",                    url: "NorthwindService.svc/Customers",                    dataType: "json",                    success: function(result) {                        var result = result.d;                        for (ind in result) {                            var customer = result[ind];                            $("" + customer.CustomerID + "," + customer.CompanyName + "
").appendTo("#result");                        }                    }                });            });            $("#insert").click(function() {                //插入一个新的客户                var customer = {                    CustomerID: "ABCDE",                    CompanyName: "Thinker Inc"                };                $.ajax({                    type: "POST",                    url: "NorthwindService.svc/Customers",                    contentType: "application/json",                    data: JSON.stringify(customer),                    success: function(result) {                        alert("操作成功");                    }                });            });            $("#update").click(function() {                //更新一个客户                var customer = null;                $.ajax({                    type: "GET",                    url: "NorthwindService.svc/Customers('ABCDE')",                    dataType: "json",                    async: false,                    success: function(result) {                        customer = result.d;                    }                });                alert(customer.CompanyName);                customer.CompanyName = "New Company";                $.ajax({                    type: "PUT",//这里还可以使用MERGE指令，效果是一样的                    url: "NorthwindService.svc/Customers('ABCDE')",                    contentType: "application/json",                    data: JSON.stringify(customer),                    success: function(result) {                        alert("操作成功");                    }                });            });            $("#delete").click(function() {                //删除一个客户                $.ajax({                    type: "DELETE",                    url: "NorthwindService.svc/Customers('ABCDE')",                    success: function(result) {                        alert("操作成功");                    }                });            });        });    script>head><body>    <form id="form1" runat="server">    <div>        <input type="button" value="查询" id="query" />        <input type="button" value="插入" id="insert" />        <input type="button" value="更新" id="update" />        <input type="button" value="删除" id="delete" />    div>    <ol id="result">    ol>    form>body>html>

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