In diesem Artikel wird hauptsächlich die Implementierung eines einfachen Chat-Dialogfelds in js ausführlich vorgestellt, was einen gewissen Referenzwert hat.
Das Beispiel in diesem Artikel teilt mit allen die Implementierung eines einfachen Chats in js. Der spezifische Code des Dialogfelds dient als Referenz. Der spezifische Inhalt lautet wie folgt:
<!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 p = document.createElement('p'); p.style = 'clear:both'; ul.appendChild(p); 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 p = document.createElement('p'); p.style = 'clear:both'; ul.appendChild(p); 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> <p id="main" class="main"> <ul id="content" class="content"> <li class="msgContent left">hello?</li> <p style="clear:both"></p> <li class="msgContent left">hello</li> <p style="clear:both"></p> <li class="msgContent right">hi</li> <p style="clear:both"></p> <li class="msgContent left">hehe</li> <p style="clear:both"></p> <li class="msgContent left">goodbye</li> <p style="clear:both"></p> <li class="msgContent right">。。。。</li> <p style="clear:both"></p> <li class="msgContent right">sdfasdsadfd fasd fasd fasdfasdfasdf</li> <p style="clear:both"></p> <li class="msgContent right"> 哈哈</li> <p style="clear:both"></p> </ul> <textarea id="msg_input" class="msgInput"></textarea> <button id="sendbtn" class="sendbtn">发送</button> </p> </body> </html>
Das obige ist der detaillierte Inhalt vonTutorial zum Erstellen eines einfachen Dialogfelds mit js. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!