浏览器无法识别javascript / jquery代码 [英] Browser doesn't recognize javascript / jquery code
问题描述
我尝试在使用Kubuntu Linux的计算机上运行Firefox 27.0.1和Chrome 30.0.1599.114中的以下代码，并且没有任何反应。
html页面是从基于Spring MVC框架的Web应用程序中获取，并放置在WEB-INF / jsp文件夹中。有人可以在下面的代码中找到任何错误？
<！DOCTYPE html>
< html lang =en>
< head>
< meta charset =utf-8>
< meta http-equiv =X-UA-Compatiblecontent =IE = edge，chrome = 1>
< title> HorarioLivre< / title>
< script src =http://code.jquery.com/jquery-2.1.0.min.js>< / script>
< script>
$（'a'）。click（function（）{
alert（clicou em um link）;
}）;
< / script>
< link rel =stylesheethref =css / style-main.css>
< link rel =stylesheethref =css / style-popup.css>
< / head>
< body>
< header>
< div class =container>
< h1>< a href =＃> HorarioLivre< / a>< / h1>
< nav>
< ul>
< li>< a href =listagem_evento.htmlclass =icon evento> Eventos< / a>< / li>
< li>< a href =cadastra_horario.htmlclass =icon horario> Cadastrar Horarios< / a>< / li>
< li>< a href =listagem_horario.htmlclass =icon horario> Listar Horarios< / a>< / li>
< li>< a href =listagem_usuario.htmlclass =icon usuario> Usuarios< / a>< / li>
< li>< a href =＃> $ {usuario.nome}< / a>
< ul>
< li>< a href =usuario_perfil.htmlclass =icon perfil> Perfil< / a>< / li>
< li>< a href =usuario_config.htmlclass =icon settings> Configura& ccedil;& otilde; es< / a>< / li>
< li>< a href =＃>注销< / a>< / li>
< / ul>
< / li>
< / ul>
< / nav>
< / div>
< / header>
< div id =results>
< a href =＃id =close> Fechar< / a>
< div id =content>< / div>
< / div>
< / body>
< / html>
您正在选择所有脚本运行时存在的元素（因为脚本运行在头部和所有 > 元素存在于主体中）并为它们做点什么。
将脚本移动到之前< / body> 或创建一个函数并在DOM准备好的时候运行它。
$ b
jQuery（function（） （
'（'a'）。click（function（）{
alert（clicou em um link）;
}）;
}）;
...那么会有实际的 a 元素你可以操纵。
I try run the following code in Firefox 27.0.1 and Chrome 30.0.1599.114 on a machine with Kubuntu Linux, and nothing happens.
The html page is part from a web application based on Spring MVC framework, and was placed in the folder WEB-INF/jsp. Someone can find any error in the code below?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>HorarioLivre</title>
<script src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
<script>
$('a').click(function() {
alert("clicou em um link");
});
</script>
<link rel="stylesheet" href="css/style-main.css">
<link rel="stylesheet" href="css/style-popup.css">
</head>
<body>
<header>
<div class="container">
<h1><a href="#">HorarioLivre</a></h1>
<nav>
<ul>
<li><a href="listagem_evento.html" class="icon evento">Eventos</a></li>
<li><a href="cadastra_horario.html" class="icon horario">Cadastrar Horarios</a></li>
<li><a href="listagem_horario.html" class="icon horario">Listar Horarios</a></li>
<li><a href="listagem_usuario.html" class="icon usuario">Usuarios</a></li>
<li><a href="#">${usuario.nome}</a>
<ul>
<li><a href="usuario_perfil.html" class="icon perfil">Perfil</a></li>
<li><a href="usuario_config.html" class="icon settings">Configurações</a></li>
<li><a href="#">Logout</a></li>
</ul>
</li>
</ul>
</nav>
</div>
</header>
<div id="results">
<a href="#" id="close">Fechar</a>
<div id="content"></div>
</div>
</body>
</html>
You are selecting all the a elements that exist at the time the script runs (all zero of them since the script runs in the head and all the a elements exist in the body) and doing stuff to them.
Move the script to just before </body> or create a function and run it on DOM ready.
jQuery(function () {
$('a').click(function() {
alert("clicou em um link");
});
});
… then there will be actual a elements you can manipulate.
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