AJAX初级聊天室代码

时间:2021-03-17 人气:0

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很早就想发出来了,一直以来都没什么时间,今天偷个空先把代码发上面,明天来写注释.

还是那句话,AJAX是一种应用,而不是一个专门的技术,我认为做做DEMO要的是速度,要让看的人好理解,而JS是最基本的WEB语言,相信比起其他的语言来说,要明了很多,所以我还是选择用JS写前后台代码.但并不代表我不会其他的语言,程序关键还是在于自我对实现的想法,而用什么语言,好比选择工具一样,我用菜刀可以做,用瑞士军刀也可以做,关键是要看在什么场合.

再就AJAX实际上首要考虑的是人性化,人机交互的便利才是他的优势,否则我还是劝你使用FLASH的AS来的更快.

记住这个词--认知潜意识.千万不要让用户感觉到操作的不适应,你也一定要想在用户的前面,也许这就是程序不智能的位置.
如果你喜欢的话可以继续开发这个东西,更希望你能够注明一下转载出处,我会觉得非常地高兴,并写出更多更好的东西.

首页HTML代码:请保存为index.html

程序代码

<!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=gb2312" />
<title>Chating Beta_0.3.23</title>
<link href="images/chatstyle.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="images/chat.js"></script>
<script type="text/javascript" src="images/display.js"></script>
</head>
<body>
<div id="loadifo"></div>
<div class="header">Chating Beta_0.3.23</div>
<div id="outs"><div id="outmain"><div id="chatmain"></div></div></div>
<div class="in">昵称：
    <input class="names" name="named" type="text" />
    <span id="inputput" class="inputput" onmouseover="overInput(this)" onmouseout="outInput(this)"><input class="inputs" name="inputs" type="text" title="提交对话
快捷键:Enter或Ctrl + Enter
清除
快捷键:Ctrl + Delete" /><input class="left" type="button" onmouseover="lrover(this)" value=" " onmouseout="lrout(this)" onclick="preChat();" title="向前一条对话记录
快捷键:↑" /><input class="right" onmouseover="lrover(this)" type="button" value=" " onmouseout="lrout(this)" onclick="nextChat();" title="向后一条对话记录
快捷键:↓" />
    <input id="btn" class="btn" type="image" src="images/rest.gif" onmouseover="overBtn(this)" onmouseout="outBtn(this)" onclick="doUsingPost();" title="提交对话
快捷键:Enter或Ctrl + Enter" />
    </span>
    <span id="errors"></span>
</div>
</body>
</html>

CSS文件:请保存为 images/chatstyle.css

程序代码

body{
    margin: 0px;
    padding: 0px;
    font-size: 9pt;
    background-image: url(JD112.jpg);
    background-position: center center;
}
#outmain{
    height: 400px;
    font-size: 9pt;
    overflow-y: scroll;
    overflow-x: hidden;
    SCROLLBAR-ARROW-COLOR:#FF9900;
    SCROLLBAR-FACE-COLOR:#FFF9E1;
    SCROLLBAR-DARKSHADOW-COLOR:#FF9900;
    SCROLLBAR-HIGHLIGHT-COLOR:#FFFFFF;
    SCROLLBAR-3DLIGHT-COLOR:#FF9900;
    SCROLLBAR-SHADOW-COLOR:#FFFFFF;
    SCROLLBAR-TRACK-COLOR:#FFF9E1;
}
#chatmain{}
#outs{
    width: 540px;
    margin-right: auto;
    margin-left: auto;
    padding: 10px;
    margin-top: 10px;
    margin-bottom: 10px;
    background-color: #FFF9E1;
    border: 1px solid #AAA;
    clear: both;
}
.in{
    text-align: center;
}

.names{
    border: 1px solid #AAA;
    background-color: #FFF9E1;
    width: 80px;
    height: 19px;
    line-height: 19px;
}
#loadifo {
    position:absolute;
    top:100px;
    z-index:1;
    right: 10px;
    line-height: 21px;
}
.header{
    height: 60px;
    background-color: #000;
    text-align: center;
    color: #FFF;
    font-weight: bold;
    line-height: 60px;
    font-family: Tahoma;
    font-size: 12pt;
    float: left;
    width: 100%;
    margin-bottom: 20px;
    filter: Alpha(Opacity=50);
    opacity: 0.5;
}
/*效果*/
.btn{
    border: 1px solid #AAA;
    position: absolute;
    margin-top: 2px;
}
.inputs{
    font-size: 9pt;
    background-image: url(input.png);
    background-repeat: no-repeat;
    width: 295px;
    line-height: 21px;
    height: 21px;
    margin: 0px;
    padding: 0px;
    border: 1px solid #AAA;
}
.left,.right{
    background-repeat: no-repeat;
    background-position: center center;
    cursor:pointer;
    border-top-style: none;
    border-right-style: none;
    border-bottom-style: none;
    border-left-style: none;
    background-color: #FFF;
    height: 23px;
    width: 23px;
}
.left{
    background-image: url(l1.gif);
}
.right{
    background-image: url(r1.gif);
}

JS主文件: 请保存为 images/chat.js

程序代码

JS辅助文件:请保存为 images/display.js

程序代码

function overInput(a){
    getId("btn").style.border = "1px solid #54ce43"
    getId("inputs").style.border = "1px solid #54ce43"
    focs()
}
function outInput(a){
    getId("btn").style.border = "1px solid #AAA"
    getId("inputs").style.border = "1px solid #AAA"
    focs()
}
function overBtn(a){
    a.src = "images/hover.gif"
}
function outBtn(a){
    a.src = "images/rest.gif"
}
function lrover(a){
    a.style.backgroundColor = "#EEE"
}
function lrout(a){
    a.style.backgroundColor = "#FFF"
}
function focs(){
    getName("inputs").focus();
}
function clean(){
    getName("inputs").value = ""
}
var chats = new Array()
var chatStart
function addChat(strChat){
    if(chats.length > 199){
        chats.shift()
    }
    chats.push(strChat)
    chatStart = chats.length
}
function preChat(){
    if(chatStart && chatStart >= 1){
        if(chatStart == 1){
            getName("inputs").value = chats[0]
            chatStart = 0.5
        }else{
            chatStart -= 1
            getName("inputs").value = chats[chatStart]
        }
    }
    getId("loadifo").innerHTML = chatStart+","+chats.length
}
function nextChat(){
    if(chatStart && chatStart < chats.length && chats.length > 1){
        if(chatStart == 0.5){
            chatStart = 1
        }else if(chatStart == chats.length - 1){
            chatStart = chats.length - 1
        }else{
            chatStart += 1
        }
        getName("inputs").value = chats[chatStart]
    }
    getId("loadifo").innerHTML = chatStart+","+chats.length
}

主ASP程序文件:请保存为chat.asp

程序代码

<%@LANGUAGE="JAVASCRIPT" CODEPAGE="936"%><%
    Session.CodePage = 936
    Response.ContentType = "application/xml"
    Response.Expires = 0
%><%
function repla(str){
    str = str.replace(/\&/g, "&");
    str = str.replace(/\>/g, ">");
    str = str.replace(/\</g, "<");
    str = str.replace(/\"/g, """);
    str = str.replace(/\'/g, "'");
    return str;
}

var useIp = Request.ServerVariables("REMOTE_ADDR")
if(!Application("counts")){
    Application("counts") = 0
}
if(Request("cont").Count != 0){
    Application.Lock()
        if(Application("counts") < 21){
            Application("counts") += 1
        }else if(Application("counts") >= 21){
            Application("counts") = 1
        }
        var Cnum = Application("counts")
        var Msgs = repla(Server.HTMLEncode(Request("cont")))
        Application("ips" + Cnum) = useIp +""
        Application("msgs" + Cnum) = Msgs +""
        if(Request("named").Count != 0){
            var names = Request("named")
        }else{
            var names = ""
        }
        Application("names" + Cnum) = names +""
    Application.UnLock()
}
if(Request("cont") == "cls"){
    Application.Contents.RemoveAll()
}
%><?xml version="1.0" encoding="gb2312" ?>
<ppl>
    <num><%=Application("counts")%></num>
    <%
    if(Request("clien") == "m"){
    %>
    <items>
        <ip><%=useIp%></ip>
    </items>
    <%
    }else if(Request("clien") < Application("counts")){
        for(var i=Request("clien"); i<Application("counts"); i++){
            s = Number(i)+1
            var useName = Application("names" + s)
            var useMsg = Application("msgs" + s)
            var useIp = Application("ips" + s)
    %>
    <items>
        <aaa><%=Request("clien")%> <%=s%></aaa>
        <bbb><%=Application("counts")%></bbb>
        <name><%=useName%></name>
        <conts><%=useMsg%></conts>
        <ip><%=useIp%></ip>
    </items>
    <%
        }
    }else if(Request("clien") > Application("counts")){
        for(var i=Request("clien"); i<21; i++){
            var useName = Application("names" + i)
            var useMsg = Application("msgs" + i)
            var useIp = Application("ips" + i)
    %>
    <items>
        <name><%=useName%></name>
        <conts><%=useMsg%></conts>
        <ip><%=useIp%></ip>
    </items>
    <%
        }
        for(var m=1; m<=Application("counts"); m++){
            var useNameM = Application("names" + m)
            var useMsgM = Application("msgs" + m)
            var useIpM = Application("ips" + m)
    %>
    <items>
        <name><%=useNameM%></name>
        <conts><%=useMsgM%></conts>
        <ip><%=useIpM%></ip>
    </items>
    <%
        }
    }else if(Request("clien") == Application("counts")){

    }
    %>
</ppl>

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