js实现简易聊天对话框
程序员文章站
2022-04-29 07:58:49
本文实例为大家分享了js实现简易聊天对话框的具体代码，供大家参考，具体内容如下
<...
本文实例为大家分享了js实现简易聊天对话框的具体代码，供大家参考，具体内容如下
<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title>聊天对话框</title>
<style type="text/css">
*{font-size: 14px; padding:0; margin:0;}
.main{
position: relative;
margin: 20px auto;
border: 1px solid steelblue;
width: 430px;
height: 400px;
}
.msginput{
display: block;
width: 406px;
height: 60px;
margin: 10px auto;
}
.sendbtn{
position: absolute;
width: 100px;
height: 29px;
bottom: 5px;
right: 10px;
}
.content{
list-style: none;
width: 410px;
height: 280px;
margin: 5px auto;
border: 1px dotted #d1d3d6;
overflow-y: scroll;
}
.msgcontent{
width:auto;
max-width: 250px;
height: auto;
word-break: break-all;
margin: 5px;
padding: 3px;
border-radius: 5px;
}
.content .left{
float: left;
text-align: left;
background-color: lightgrey;
}
.content .right{
float: right;
text-align: right;
background-color: yellowgreen;
}
</style>
<script type="text/javascript">
window.onload=function(){
var input = document.getelementbyid('msg_input');//查找缓存
document.getelementbyid('sendbtn').onclick=function () {
//var input1 = document.getelementbyid('msg_input');//
//input0
sendmsg();
}
//快捷键 发送
document.onkeypress = function (event) {
var e = event || window.event;
var keycode = e.keycode || e.which;
console.log(e)
if( keycode==10){//判断同时按下ctrl 和enter
sendmsg()
}
}
function sendmsg() {
var input = document.getelementbyid('msg_input');//查找缓存
var ul = document.getelementbyid('content');
var newli = document.createelement('li');
newli.innerhtml = input.value;
newli.classname = 'msgcontent right';
ul.appendchild(newli);
var div = document.createelement('div');
div.style = 'clear:both';
ul.appendchild(div);
ajax({
url:'http://jisuznwd.market.alicloudapi.com/iqa/query?question='+input.value,
success:function (res) {
// console.log(res)
var obj = json.parse(res);
console.log(obj)
var array = obj.result.content;
// var zhengzhou = array[0];
var tmp = array;
// var tmp = '温度:'+zhengzhou.day_air_temperature+','+zhengzhou.day_weather;
console.log(tmp)
var newli = document.createelement('li');
newli.innerhtml = tmp;
newli.classname = 'msgcontent left';
ul.appendchild(newli);
var div = document.createelement('div');
div.style = 'clear:both';
ul.appendchild(div);
input.value = '';
newli.scrollintoview();//将元素滚动到可见位置
}
})
input.value = '';
newli.scrollintoview();//将元素滚动到可见位置
}
}
function ajax(obj) {
//?lastcursor=6610&pagesize=10
// var url = 'reg.php';
var xhr = null;
if(window.activexobject){
xhr = new activexobject('microsoft.xmlhttp')
}else{
xhr = new xmlhttprequest();
}
// $username = $_request['username'];
// $password = $_request['password'];
//打开与服务器的连接
if(obj.method){
xhr.open(obj.method,obj.url,true);
}else{
xhr.open('get',obj.url,true);
}
xhr.setrequestheader("content-type","application/x-www-form-urlencoded");
xhr.setrequestheader("authorization","appcode 3e9dfb924f464e9593a95f9d2bbf4348")
// {username:'zhangsa',password:123123}
// senddata = encodeuricomponent(senddata);
// 发送请求
//console.log(res);
//回调函数
xhr.onreadystatechange = function () {
// console.log(xhr.readystate)
if(xhr.readystate == 4){
//数据接收完毕
if(xhr.status == 200){
// console.log('请求成功',xhr.responsetext)
if(obj.success){
obj.success(xhr.responsetext)
}
}else{
// console.log(xhr.status,'请求出错')
if(obj.failure){
obj.failure('请求失败')
}
}
}
}
// var senddata = 'username=zhangsan&password=123456';
if( obj.method == undefined ||obj.method.tolowercase() =='get'){
xhr.send(null);//
}else{
xhr.send(obj.params);//
}
}
</script>
</head>
<body>
<div id="main" class="main">
<ul id="content" class="content">
<li class="msgcontent left">hello?</li>
<div style="clear:both"></div>
<li class="msgcontent left">hello</li>
<div style="clear:both"></div>
<li class="msgcontent right">hi</li>
<div style="clear:both"></div>
<li class="msgcontent left">hehe</li>
<div style="clear:both"></div>
<li class="msgcontent left">goodbye</li>
<div style="clear:both"></div>
<li class="msgcontent right">。。。。</li>
<div style="clear:both"></div>
<li class="msgcontent right">sdfasdsadfd fasd fasd fasdfasdfasdf</li>
<div style="clear:both"></div>
<li class="msgcontent right"> 哈哈</li>
<div style="clear:both"></div>
</ul>
<textarea id="msg_input" class="msginput"></textarea>
<button id="sendbtn" class="sendbtn">发送</button>
</div>
</body>
</html>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。