return result;
}
#endregion
// 对象转换为Json
public static string ObjectToJson(object obj)
{
JavaScriptSerializer js=new JavaScriptSerializer();
try
{
return js.Serialize(obj);
}
catch (Exception exception)
{
throw new Exception(exception.Message);
}
}
// 数据表转化为集合
public static List<Dictionary<string,object>> DataTableToList(DataTable dt)
{
List<Dictionary<string ,object>> list=new List<Dictionary<string, object>>();
foreach (DataRow dataRow in dt.Rows)
{
Dictionary<string,object> dic=new Dictionary<string, object>();
foreach (DataColumn dc in dt.Columns)
{
dic.Add(dc.ColumnName,dataRow[dc.ColumnName]);
}
list.Add(dic);
}
return list;
}
// 表转换为Json
public static string DataTableToJson(DataTable dt)
{
return ObjectToJson(DataTableToList(dt));
}
}
3. 添加ashx代码文件
public class GetData : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = “text/plain”;
if (context.Request[“action”]==”display”)
{
context.Response.Write(JsonHelper.DataTableToJson(GetAllUsers()));
}
}
static SqlConnection conn = new SqlConnection(“server=.;database=Test;uid=sa;pwd=123456”);
public static DataTable GetAllUsers()
{
string sql = “select * from users”;
SqlDataAdapter adapter = new SqlDataAdapter(sql, conn);
DataTable dt = new DataTable();
adapter.Fill(dt);
return dt;
}
public bool IsReusable
{
get
{
return false;
}
}
}
public class GetData : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = “text/plain”;
if (context.Request[“action”]==”display”)
{
context.Response.Write(JsonHelper.DataTableToJson(GetAllUsers()));
}
}
static SqlConnection conn = new SqlConnection(“server=.;database=Test;uid=sa;pwd=123456”);
public static DataTable GetAllUsers()
{
string sql = “select * from users”;
SqlDataAdapter adapter = new SqlDataAdapter(sql, conn);
DataTable dt = new DataTable();
adapter.Fill(dt);
return dt;
}
public bool IsReusable
{
get
{
return false;
}
}
}
4. 前端调用
<html xmlns=”http://www.w3.org/1999/xhtml” >
<head runat=”server”>
<title></title>
<script src=”js/jquery-1.6.js” type=”text/javascript”></script>
<script type=”text/javascript”>
$(function() {
var options = {
type: ‘post’,
url: “/GetData.ashx”,
dataType: “json”,
data: { action: “display” },
