Asp+Ajax仿google搜索提示效果 數據庫版
需要修改的地方有
復制代碼代碼如下:
javascript.js
var url="ajax.asp"; //后臺地址
var time_delayajax=300; //搜索延遲
var time_delayupdown=100; //方向鍵延遲
obj_div.style.top = (xtop + 20) + "px"; //20差不多是輸入框的高度,請根據實際情況調整
ajax_xmlhttp.send("sift_value="+escape(temp_value)); //提交到后臺的值
dd=d+"<li onmouseover=/"overli("+i+");/" onmousedown=/"downli("+i+")/" onmouseup=/"upli("+i+",event)/" onmousemove=/"moveli();/"><span>約"+c[1]+"結果</span>"+c[0]+"</li>";//****li的顯示
后臺輸出結果格式必需為'文本1,文本2'.....
'java,2''javascript,11''java示例,22'等
default.css
復制代碼代碼如下:
.ajaxsearch {
width:300px; //提示層的寬度
}
首頁index.html
復制代碼代碼如下:
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="default.css" />
<script language="JavaScript" src="javascript.js" type="text/javascript"></script>
<title>Google suggest高仿示例</title>
</head>
<body onResize="removediv();">
<div style="margin:20px 50px">
<input style="width:298px;height:18px" type="text" autocomplete="off" onBlur="blurdeal();" onKeyDown="keydowndeal(event);" onFocus="focusdeal(event);" />
</div>
</body>
</html>
腳本javascript.js
復制代碼代碼如下:
///////////////////////////////搜索提示框/////////////////////////////////
var obj_div; //提示層對象
var obj_input; //輸入框對象
var main_delay; //判斷值變化延遲對象
var ajax_delay; //ajax延遲搜索對象
var updown_delay; //方向鍵延遲對象
var ajax_xmlhttp; //ajax對象
var div_word=null; //當前提示層對應的搜索值
var li_num=-1; //偽光標位置,提示層被選中的li序號,從0開始
var li_down=-1; //鼠標按下提示層的序號
var value_ed=""; //輸入框延遲前的值
var value_ing=""; //輸入框當前的值
var value_unexit=""; //搜索過沒有結果的值開頭
var updown_run=false; //允許方向鍵上下
var ajax_run=false; //true為正常進程,false停止ajax
var ajax_run_ing=false; //true正在運行,false空閑
var input_focus=false; //文本框焦點
var url="ajax.asp"; //后臺地址**********************************************************
var time_delayajax=300; //搜索延遲**********************************************************
var time_delayupdown=100; //方向鍵延遲********************************************************
var $=function(Fun_id){
return document.getElementById(Fun_id);
}
try{
ajax_xmlhttp= new ActiveXObject('Msxml2.XMLHTTP');
}catch(e){
try{
ajax_xmlhttp= new ActiveXObject('Microsoft.XMLHTTP');
}catch(e){
try{
ajax_xmlhttp= new XMLHttpRequest();
}catch(e){ajax_xmlhttp=null;}
}
}
////////////////////////創建提示層////////////////////////
function createajaxdiv(){
var create_div = document.createElement("div");
create_div.type = "div";
var promptdiv = document.body.appendChild(create_div);
promptdiv.className = "ajaxsearch";
obj_div=promptdiv;
}
////////////////////////設置提示層位置////////////////////////
function removediv(){
if(!obj_div || !obj_input)return false;
if(obj_div.style.display=="none")return false;
var obj=obj_input;
var xtop=0;
var xleft=0;
while(obj){
xtop += obj["offsetTop"];
xleft += obj["offsetLeft"];
obj = obj.offsetParent;
}
obj_div.style.left = xleft + "px";
obj_div.style.top = (xtop + 20) + "px"; //20差不多是輸入框的高度,請根據實際情況調整************************************************************8
li_down=-1;
}
////////////////////////隱藏提示層////////////////////////
function hideajaxdiv(){
obj_div.style.display="none";
li_down=-1;
}
////////////////////////設置被選<li>css樣式////////////////////////
function setlistyle(){
for(var i=0;i<obj_div.firstChild.childNodes.length;i++){
obj_div.firstChild.childNodes[i].id="";
}
if(li_num!=-1)obj_div.firstChild.childNodes[li_num].id="liseleted";
}
////////////////////////鼠標經過提示層////////////////////////
function overli(Fun_seletedlinum){
if(li_num==-1)value_ing=obj_input.value;
li_num=Fun_seletedlinum;
setlistyle();
}
////////////////////////鼠標拖動提示層////////////////////////
function moveli(){
if(window.getSelection){
setfocus();
window.getSelection().removeAllRanges();
}else{
document.selection.empty();
setfocus();
}
}
////////////////////////鼠標按下提示層////////////////////////
function downli(Fun_seletedlinum){
if(!obj_input)return false;
li_down=Fun_seletedlinum;
input_focus=true;
}
////////////////////////鼠標彈起提示層////////////////////////
function upli(Fun_seletedlinum,Fun_event){
if(!obj_input)return false;
if(Fun_event.button==2){li_down=-1;return}
if(li_down!=Fun_seletedlinum){
li_down=-1;
return false;
}
clearTimeout(ajax_delay);
clearTimeout(updown_delay);
updown_run=true;
ajax_run=false;
ajax_run_ing=false;
li_num=-1;
div_word=null;
value_ed=obj_div.firstChild.childNodes[Fun_seletedlinum].childNodes[1].nodeValue;
obj_input.value=value_ed;
value_ing=value_ed;
hideajaxdiv();
obj_div.innerHTML="";
}
////////////////////////設置文本框獲取焦點///////////////////////
function setfocus(){
if(window.event){
var r = obj_input.createTextRange();
r.moveStart('character',obj_input.value.length);
r.collapse(true);
r.select();
}else{
obj_input.selectionStart=obj_input.value.length;
obj_input.focus();
}
}
////////////////////////文本框失去焦點////////////////////////
function blurdeal(){
if(input_focus==true){
setfocus();
setTimeout("setfocus()");
return false;
}
updown_run=false;
ajax_run=false;
ajax_run_ing=false;
clearInterval(main_delay);
clearTimeout(ajax_delay);
clearTimeout(updown_delay);
hideajaxdiv();
if(value_ed!=obj_input.value)obj_div.innerHTML="";
}
////////////////////////文本框獲取焦點////////////////////////
function focusdeal(Fun_event){
if(!obj_div)createajaxdiv();
if(input_focus==true){
input_focus=false;
return false;
}
var obj=((window.event)?Fun_event.srcElement:Fun_event.target);
if(obj.type!="text")return false;
updown_run=true;
ajax_run=true;
ajax_run_ing=false;
if(obj_input==obj && value_ed==obj.value && obj_div.innerHTML!=""){
obj_div.style.display="block";
removediv();
}else{
obj_input=obj;
value_ed=obj.value;
value_ing=obj.value;
value_unexit="";
li_num=-1;
li_down=-1;
div_word=null;
obj_div.innerHTML="";
removediv();
}
main_delay=setInterval("mainajax()",10);
}
////////////////////////主函數////////////////////////
function mainajax(){
if(value_ed==obj_input.value)return false;
if(value_unexit!="" && (obj_input.value).indexOf(value_unexit)==0){hideajaxdiv();obj_div.innerHTML="";return false;}
if(value_ed!=obj_input.value && ajax_run_ing==false){
ajax_run=true;
value_ed=obj_input.value;
clearTimeout(ajax_delay);
if(obj_input.value!=""){
ajax_delay=setTimeout("getsearch();",time_delayajax);
}else{
hideajaxdiv();
obj_div.innerHTML="";
ajax_run=false;
return false;
}
}
}
////////////////////////獲取搜索內容////////////////////////
function getsearch(){
var temp_value=obj_input.value;
if(ajax_xmlhttp==null){
return false;
}else if(ajax_xmlhttp.readyState!=0){
ajax_xmlhttp.abort();
ajax_run_ing=false;
}
ajax_xmlhttp.onreadystatechange=function(){
if(ajax_run==false){ajax_xmlhttp.abort();ajax_run_ing=false;return false;}
if(ajax_xmlhttp.readyState==4){
obj_div.innerHTML="";
if(ajax_xmlhttp.status==200 || ajax_xmlhttp.status==304){
var contant=ajax_xmlhttp.responseText;
if(contant!="" && ajax_run==true){
div_word=temp_value;
obj_div.innerHTML=resetcontant(contant);
obj_div.style.display="block";
removediv();removediv();
}else{
hideajaxdiv();
}
updown_run=true;
ajax_run_ing=false;
li_num=-1;
if(contant=="")value_unexit=temp_value;
}
}
}
ajax_xmlhttp.open("post",url,true);
ajax_xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');
ajax_run_ing=true;
ajax_xmlhttp.send("sift_value="+escape(temp_value)); //提交到后臺的值*****************************************
}
////////////////////////內容重組///////////////////////
function resetcontant(Fun_contant){
if(Fun_contant==null || Fun_contant=="")return "";
var a=Fun_contant.substring(1,Fun_contant.length-1);
if(Fun_contant==null || Fun_contant=="")return "";
var b=a.split("''");
var c;
var d;
d="<ul>";
for(var i in b){
c=b[i].split(",");
//***************************************************************
d=d+"<li onmouseover=/"overli("+i+");/" onmousedown=/"downli("+i+")/" onmouseup=/"upli("+i+",event)/" onmousemove=/"moveli();/"><span>約"+c[1]+"結果</span>"+c[0]+"</li>";
//***************************************************************
}
d=d+"<li onmousedown=/"input_focus=true;li_down=-1;/" onmouseup=/"li_down=-1/" onmousemove=/"moveli();/"><span><a class=/"shutajaxdiv/" onclick=/"hideajaxdiv();/">關閉</a></span></li>"
d=d+"</ul>";
return d;
}
////////////////////////鍵盤事件////////////////////////
function keydowndeal(Fun_event){
var keyc=((window.event)?Fun_event.keyCode:Fun_event.which);
if(keyc==13){hideajaxdiv();return false;}
if(keyc==27){
if(obj_div.style.display=="block" && li_num>-1)value_ed=obj_input.value=value_ing;
hideajaxdiv();
return false;
}
if(keyc==40 || keyc==38){
if(div_word==obj_input.value && obj_div.style.display=="none" && obj_div.innerHTML!=""){
obj_div.style.display="block";
removediv();
return false;
}
if(li_num==-1){
if(div_word!=obj_input.value)return false;
}else{
if(div_word!=value_ing)return false;
}
if(updown_run==false || ajax_run_ing==true || obj_div.style.display=="none")return false;
updown_delay=setTimeout("updownli("+keyc+")",time_delayupdown);
updown_run=false;
}
}
////////////////////////方向鍵移動li////////////////////////
function updownli(Fun_key){
if(!obj_div){return false;}
updown_run=true;
if(li_num==-1){
if(div_word!=obj_input.value){hideajaxdiv();obj_div.innerHTML="";li_num=-1;return false;}
}else{
if(div_word!=value_ing){hideajaxdiv();obj_div.innerHTML="";li_num=-1;return false;}
}
if(updown_run==false)return false;
if(li_num==-1)value_ing=value_ed;
if(Fun_key==40){
if(li_num<obj_div.firstChild.childNodes.length-2){
li_num++;
}else{
li_num=-1;
}
}
if(Fun_key==38){
if(li_num>=0){
li_num--;
}else{
li_num=obj_div.firstChild.childNodes.length-2;
}
}
if(li_num!=-1){
value_ed=obj_input.value=obj_div.firstChild.childNodes[li_num].childNodes[1].nodeValue;
}else{
value_ed=obj_input.value=value_ing;
}
setlistyle();
}
后臺ajax.asp
復制代碼代碼如下:
<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001" %>
<%option explicit%>
<%Response.CodePage="65001"%>
<%Response.Charset="utf-8" %>
<!--#include file="conn.asp"-->
<%
dim Sift_value
dim Sql,Rs,I,Num
dim Contant
Contant=""
Num=10
Sift_value=replace(unescape(request.form("sift_value")),"""","""""")
Sql="select top "&Num&" keyword,matchnum from search where keyword like """&Sift_value&"%"" order by id"
set Rs=server.CreateObject("adodb.recordset")
Rs.open Sql,Conn,1,1
if not (Rs.eof and Rs.bof) then
for I=0 to Num-1
Contant=Contant&"'"&rs(0)&","&rs(1)&"'"
Rs.movenext
if Rs.eof then exit for
next
end if
response.Write(Contant)
Rs.close
set Rs=nothing
%>
