访问HTML元素的值,只用getValue(elementID)方法
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>访问HTML元素的值,只用getValue(elementID)方法</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<script type="text/javascript" src="js/util.js"></script>
</head>
<body>
<input id="test" type="text" />
<input type="button" value="设置值"
onclick="dwr.util.setValue('test' , '测试用的值');" />
<input type="button" value="获取值"
onclick="alert(dwr.util.getValue('test'));" />
</body>
</html>
访问HTML元素的值,只用getValues(obj)方法
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>访问HTML元素的值,只用getValues(obj)方法</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<script type="text/javascript" src="js/util.js"></script>
<script type="text/javascript">
function set() {
//定义了一个JSON格式的对象，该对象的每个属性名
//对应页面中的一个HTML元素的ID属性值。
var obj = {
txt : '测试文本',
pass : '12345678',
area : '学习Ajax\n很好玩',
select : 'two'
};
//调用该方法后，页面中对应的HTML元素值将被设置为上面JSON对象的属性值
dwr.util.setValues(obj);
}
function get()
{
//定义了一个JavaScript对象。
//该对象的属性名对应于页面中的HTML元素的id属性
var obj = {
txt : null,
pass: null,
area: null,
select: null};
//调用getValues方法后，obj的属性值将被设置为页面中对应HTML元素的值
dwr.util.getValues(obj);
var result = "";
//通过遍历obj对象的属性，输出obj对象的所有属性值。
for (var name in obj)
{
result += obj[name] + "\n";
}
alert(result);
}
</script>
</head>
<body>
<input id="txt" type="text" />
<br />
<input id="pass" type="password" />
<br />
<textarea id="area" rows="2" cols="50"></textarea>
<br />
<select id="select">
<option value="one">
一
</option>
<option value="two">
二
</option>
<option value="three">
三
</option>
</select>
<input type="button" value="设置值" onclick="set();"/>
<input type="button" value="获取值" onclick="get();" />
</body>
</html>
util.js测试,dwr.util.onReturn(event,callbackfunction)
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>util.js测试,dwr.util.onReturn(event,callbackfunction)</title>
<meta name="website" content="http://www.crazyit.org" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script src="js/util.js" type="text/javascript"></script>
<script type="text/javascript">
function test()
{
alert("单击了回车键");
}
</script>
</head>
<body>
<input id="txt" name="txt" type="text"
onkeypress="dwr.util.onReturn(event,test)" />
</body>
</html>
util.js测试dwr.util.toDescriptiveString(elementId,level)
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>util.js测试</title>
<meta name="website" content="http://www.crazyit.org" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script src="js/util.js" type="text/javascript"></script>
</head>
<body>
<input id="test" type="text" value="0123456789" />
<input type="button" value="选中"
onclick="dwr.util.selectRange('test',3,8)" />
</body>
</html>