页面代码
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Index.aspx.cs" Inherits="Index" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script src="jquery-1.7.2.js"></script>
<script type="text/javascript">
onload=function(){
//web service的调用
$.ajax({
type: "get",
contentType: 'application/json',
url: "http:www.LCWeb.com/WebService.cs/HelloWorld",
dataType: "xml",
success: function (data) {
alert(data);
}
});
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div id="div1">
</div>
</form>
</body>
</html>
Web Service中的代码
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Services;
/// <summary>
/// WebService 的摘要说明
/// </summary>
[WebService(Namespace = "http://microsoft.com/webservices/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
[System.Web.Script.Services.ScriptService]
// 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消注释以下行。
// [System.Web.Script.Services.ScriptService]
public class WebService : System.Web.Services.WebService
{
public WebService()
{
//如果使用设计的组件，请取消注释以下行
//InitializeComponent();
}
[WebMethod]
public List<Student> HelloWorld()
{
//编写连接字符串
string conStr = "Data Source=.;Initial Catalog=school;Integrated Security=True";
//创建连接对象
SqlConnection conn = new SqlConnection(conStr);
//编写sql语句
string sqlStr = "select * from student";
//创建适配器对象
SqlDataAdapter adapter = new SqlDataAdapter(sqlStr, conn);
//创建临时表对象
DataTable dt = new DataTable();
//填充表数据
adapter.Fill(dt);
List<Student> stuList = new List<Student>();
//将数据封装成集合
for (int i = 0; i < dt.Rows.Count; i++)
{
stuList.Add(new Student
{
Id = Convert.ToInt32(dt.Rows[i]["id"].ToString()),
Name = dt.Rows[i]["Name"].ToString(),
});
}
return stuList;
}
}
实体类中的代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
/// <summary>
/// Student 的摘要说明
/// </summary>
public class Student
{
public Student()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
public int Id { get; set; }
public String UserName { get; set; }
public String Pwd { get; set; }
public string Name { get; set; }
}