DWR中util.js访问HTML元素值
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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>
