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Dojo 学习笔记入门篇 First Dojo Example

2009-11-15 00:00 495 查看
Step 1: Configurate Dojo
从http://www.dojotoolkit.org/downloads 下载最新的Dojo包,并且放到你工程的某一个地方。比如,我就放把我的dojo库放在lib文件夹下(如图一)。



图一(文件目录结构)
在你的页面中加入如下代码,那么就完成了最基本的配置。
<script type="text/javascript" src="lib/dojo/dojo/dojo.js" djConfig ="parseOnLoad:true, isDebug:false"></script>
Step 2: Start your First Example
我的第一个例子是模拟一个简单的登录页面,如果成功,则显示“Right!”,反之则显示“Wrong!Please try it again!”
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> 
<title>Untitled Document</title> 
<script type="text/javascript" src="lib/dojo/dojo/dojo.js" src="lib/dojo/dojo/dojo.js" djConfig ="parseOnLoad:true, isDebug:false"></script> 
<style type="text/css"><!-- 
#container { 
border: 1px dotted #b7b7b7; 
background: #ededed; 
width: 200px; 
height: 200px; 
} 
--></style><style type="text/css" bogus="1"> #container { 
border: 1px dotted #b7b7b7; 
background: #ededed; 
width: 200px; 
height: 200px; 
} 
</style> 
</head> 
<body> 
<form id="mainForm" action="controller/ajax-controller.php" method="post"> 
<label for = "name">Name:</label> 
<input type="text" name="name"/> 
<br/> 
<label for = "password">Password:</label> 
<input type="password" name="password" value=""/> 
<br/> 
<input type="submit" value="Submit"/> 
<h1 id="resultText"></h1> 
</form> 
<script type="text/javascript"><!-- 
var formSubmit = function(e){ 
e.preventDefault(); 
var resultText = dojo.byId("resultText"); 
dojo.xhrPost({ 
url: "controller/controller.php", 
form:"mainForm", 
handleAs:"text", 
handle:function(data,args){ 
console.info(data); 
if(typeof data=="error"){ 
resultText.innerHTML = "<font color=\"red\">error!</font>"; 
}else{ 
if(data === "right"){ 
resultText.innerHTML = "Right!"; 
}else if(data==="wrong"){ 
resultText.innerHTML = "<font color=\"red\">Wrong!Please try it again!</font>"; 
} 
} 
} 
}); 
}; 
dojo.addOnLoad(function(){ 
var theForm = dojo.byId("mainForm"); 
dojo.connect(theForm,"onsubmit","formSubmit"); 
}); 
// --></script> 
</body> 
</html>

(对于其中的Dojo方法,可以查看Dojo的API,在此不再赘述)
后台采用php,代码如下:
<?php 
if($_POST["name"] == "blithe" && $_POST["password"]=="blithe"){ 
    print "right"; 
}else{ 
    print "wrong"; 
} 
?>
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