将UNIX命令的内容附加到div标记 [英] Appending the contents of a UNIX command to a div tag

查看:185
本文介绍了将UNIX命令的内容附加到div标记的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我正在为学习目的制作一个基于UNIX的基于终端的终端。到目前为止,我已经创建了一个文本框并显示输出。

 <?php 
$ output = shell_exec('ls');
echo< pre> $ output< / pre>;
?>



表格

 < html> 
< head>
< link href =/ css / webterminal.css =stylesheettype =text / css/>
< script type =text / javascript>
函数shell_execute(str)
{
if(str.length == 0)
{
document.getElementById(txtOut)。innerHTML =;
return;

if(window.XMLHttpRequest)
{//代码为IE7 +,Firefox,Chrome,Opera,Safari
xmlhttp = new XMLHttpRequest();
}
else
{//代码为IE6,IE5
xmlhttp = new ActiveXObject(Microsoft.XMLHTTP);
}
xmlhttp.onreadystatechange = function()
{
if(xmlhttp.readyState == 4&& xmlhttp.status == 200)
{
document.getElementById(txtOut)。innerHTML = xmlhttp.responseText;


xmlhttp.open(GET,exec.php?q =+ str,true);
xmlhttp.send();
}
< / script>
< / head
< body onLoad =setUser();>
< div class =container>

< h2>基于UNIX Web终端1.0< / h2>
< br />
< p>< b>输出< / b>< / p>
< form>
< span id =User>< / span>< < input type =textclass =textboxonkeyup =shell_execute(this.value)size =20/>
< / form>
< div class =output>
< p>< span id =txtOut>< / span>< / p>

< / div>
< / div>
< / body>
< / html>

但我希望它看起来好像该页面确实是一个终端。当我键入命令时,它应该存储shell命令的结果,然后将其附加到div标记。所以当我输入命令时,它将继续显示输出。就像在UNIX终端中一样。



如何将命令的输出追加到div标记中?

解决方案

更改:

  document.getElementById(txtOut)。innerHTML = xmlhttp。 responseText的; 

到:

  document.getElementById(txtOut)。innerHTML + = xmlhttp.responseText; 

在旁注中,您为什么不使用任何已建立的javascript框架?



以jQuery为例,您可以将代码减少到4行。
$ b

编辑 - 使用jQuery:
< a href =http://api.jquery.com/jQuery.ajax/ =nofollow> http://api.jquery.com/jQuery.ajax/

 < html> 
< head>
< link href =/ css / webterminal.css =stylesheettype =text / css/>
< script type =text / javascriptsrc =http://code.jquery.com/jquery-1.5.2.min.js>< / script>
< script type =text / javascript>
$(function(){
$('#cmd')。bind('keydown',function(evt){
if(evt.keyCode === 13)输入密钥
var cmdStr = $(this).val();

$ .ajax({
url:'exec.php',
dataType:' text',
data:{
q:cmdStr
},
success:function(response){
$('#txtOut')。append(response);
}
});
}
});
});
< / script>
< / head>

< body>
< div class =container>
< h2>基于UNIX Web终端1.0< / h2>
< br />
< p>< b>输出< / b>< / p>

< span id =User>< / span>
< input id =cmdtype =textclass =textboxsize =20/>

< div class =output>
< p>< span id =txtOut>< / span>< / p>
< / div>
< / div>
< / body>
< / html>


I'm making a UNIX web-based terminal for learning purposes. So far I have made a text box and the output is being displayed. Sort of like this.

<?php
$output = shell_exec('ls');
echo "<pre>$output</pre>";
?>

Form

<html>
<head>
<link href="/css/webterminal.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
function shell_execute(str)
{
if (str.length==0)
  {
  document.getElementById("txtOut").innerHTML="";
  return;
  }
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    document.getElementById("txtOut").innerHTML=xmlhttp.responseText;
    }
  }
xmlhttp.open("GET","exec.php?q="+str,true);
xmlhttp.send();
}
</script>
</head
<body onLoad="setUser();">
    <div class="container">

    <h2>UNIX Web Based Terminal 1.0</h2>
        <br />
    <p><b>output</b></p>
<form>
<span id="User"></span>< <input type="text" class="textbox" onkeyup="shell_execute(this.value)" size="20" />
</form>
<div class="output">
<p><span id="txtOut"></span></p>

    </div>
</div>
</body>
</html>

But I want it to look as if the page was really a terminal. When I type a command, it should store the result of the shell command, and then append it to a div tag. So as I am typing in commands, it will keep on showing the output. Just like in the UNIX terminal.

How can I append the output of the commands to a div tag?

解决方案

change:

document.getElementById("txtOut").innerHTML=xmlhttp.responseText;

to:

document.getElementById("txtOut").innerHTML += xmlhttp.responseText;

On a sidenote, why are you not using any of the well established javascript frameworks?

With jQuery for example you could reduce your code to maybe 4 lines.

Edit - using jQuery: http://api.jquery.com/jQuery.ajax/

<html>
    <head>
        <link href="/css/webterminal.css" rel="stylesheet" type="text/css" />
        <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.2.min.js"></script>
        <script type="text/javascript">
            $(function () {
                $('#cmd').bind('keydown', function (evt) {
                    if (evt.keyCode === 13) { // enter key
                        var cmdStr = $(this).val();

                        $.ajax({
                            url: 'exec.php',
                            dataType: 'text',
                            data: {
                                q: cmdStr
                            },
                            success: function (response) {
                                $('#txtOut').append(response);
                            }
                        });
                    }
                });
            });
        </script>
    </head>

    <body>
        <div class="container">
            <h2>UNIX Web Based Terminal 1.0</h2>
            <br />
            <p><b>output</b></p>

            <span id="User"></span>
            <input id="cmd" type="text" class="textbox" size="20" />

            <div class="output">
                <p><span id="txtOut"></span></p>
            </div>
        </div>
    </body>
</html>

这篇关于将UNIX命令的内容附加到div标记的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆