我的Common.js如下
//处理一般AJAX功能。
function InvokeHander(url,type,data, onSuccess, onFailure) {
$.ajax({
url: url, //路径
type: type, //请求方式
data: data, //请求的数据
dataType: "json",
contentType: "application/json;charset=utf-8",
beforeSend: function(x) {
x.setRequestHeader("Content-Type", "application/json;");
},
success: function(result) {
if (onSuccess) {
if (result.d != undefined)
result = result.d;
onSuccess(result);
}
},
error: function(err) {
if (onFailure) {
onFailure(err);
}
}
})
}
aspx页面js如下
$(function() {
$("#d1").change(function() {
var did = $("#d1").find("option:selected").val();
if (did != "请选择") {
InvokeHander("TypeHandler.ashx","POST","{id:'"+did+"'}" ,
function(result) {
if (result != null) {
for (i = 0; i < result.length; i++) {
var item = result[i];
alert(item.TypeName);
}
}
},
function(err) {
alert('err');
});
}
else {
}
});
});
ashx文件如下：
using System;
using System.Web;
using System.Data;
using System.Data.SqlClient;
using System.Collections;
using System.Web.Script.Serialization;
public class TypeHandler : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
if (context.Request["id"] == null)//这里永久为null用Request.form["id"]也不行
{
}
else
{
context.Response.Write(GetType(decimal.Parse(context.Request["id"].ToString())));
}
}
public bool IsReusable
{
get
{
return false;
}
}
public string GetType(decimal id)
{
ArrayList arr = new ArrayList();
SqlConnection conn = new SqlConnection("server=PC-11131211;database=petsdata;uid=sa;pwd=sa123456");
SqlDataAdapter da = new SqlDataAdapter("select * from infor_type2 where infor_type2_father='" + id + "'", conn);
DataSet ds = new DataSet();
da.Fill(ds);
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
arr.Add(new {
TypeID = ds.Tables[0].Rows[i]["infor_type2_id"].ToString(),
TypeName=ds.Tables[0].Rows[i]["infor_type2_name"].ToString()
});
}
JavaScriptSerializer serializer = new JavaScriptSerializer();
string result = serializer.Serialize(arr);
return result;
}
}
假如我把上面请求方法换成POST传进去的data换成: "id="+did，ashx用request.QueryString["id"]就一点问题都没。
请博客园的高手帮帮我吧。。。。我看见CSDN上也有类似的情况，好像也没解决。
