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Useing Jquery With JSF

junly — Mon, 30 May 2011 13:38:00 GMT

Page

The following is register.jsp, which takes required information from user regarding registration. For this example, we focus only on validation of username and not the actual registration process.

The most important thing is to know how to access JSF component from JQuery. The id given to inputText is consisting of formid:componentid. So in this example the id given to textbox is registerform:username. But the presence of : (colon) causes problem to JQuery. So, we need to escape : (colon) using two \\ characters before colon - registerform\\:username.

//register.jsp
<%@page contentType="text/html" %>de">

<%@page contentType="text/html" %>
"-//W3C//DTD HTML 4.01 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <script language="javascript" src="jquery-1.4.2.js">script>
        <script language="javascript">
            function checkUsername(){
                $.get( "checkusername.jsp",{username : $("#registerform\\:username").val()},updateUsername);
            }
            function updateUsername(response)
            {
                if (response) {
                    $("#usernameresult").text(response);  // update SPAN item with result
            }
        script>
        <title>Registrationtitle>
    head>
    <body>
        <%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
        <%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
        <f:view>
           <h2>Registration h2>
           <h:form  id="registerform">
           <table>
                    <tr>
                        <td>Username : td>
                        <td><h:inputText id="username" value="#{userBean.username}"  required="true" onblur="checkUsername()" />
                            <h:message for="username" />
                            <span id="usernameresult" />
                    tr>
                    <tr>
                        <td>Password : td>
                        <td><h:inputSecret id="password" value="#{userBean.password}"  required="true" /> <h:message for="password" /> td>
                    tr>
                    <tr>
                        <td>Re-enter Password : td>
                        <td><h:inputSecret id="confirmPwd" value="#{userBean.confirmPwd}"  required="true" /> <h:message for="confirmPwd" /> td>
                    tr>
                    <tr>
                        <td>Email Address  : td>
                        <td><h:inputText id="email" value="#{userBean.email}" required="true" onblur="checkEmail()"  /> <h:message for="email" /> td>
                            <span id="emailresult" />
                    tr>
               table>

              <p/>
              <h:commandButton actionListener="#{userBean.register}" value="Register" />
              <p/>
              <h3><h:outputText value="#{userBean.message}" escape="false"  /> h3>
              <p/>
           h:form>
        f:view>
    body>
html>lt;/f:view>
    body>
html>

Bean

The above JSF Form uses userBean, which is the name given to beans.UserBean class. The class and its entries in faces-config.xml file are given below.

UserBean is the managed bean that stores data coming from JSF form. It contains an action listener - register(), which is supposed to process the data to complete registration process. We don't deal with it as our focus is only on validating username.

//UserBean.java
package beans;

public class UserBean {
    private String username, password, email,confirmPwd, message;

    public UserBean() {
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getConfirmPwd() {
        return confirmPwd;
    }

    public void setConfirmPwd(String confirmPwd) {
        this.confirmPwd = confirmPwd;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public void  register(ActionEvent evt) {
       if (! password.equals(confirmPwd))
       {
             message = "Password do not match!";
             return;
       }
       // do registration
    } // register
}

xml

The following entry is required in faces-config.xml for UserBean managed bean.

<managed-bean>
        <managed-bean-name>userBeanmanaged-bean-name>
        <managed-bean-class>beans.UserBeanmanaged-bean-class>
        <managed-bean-scope>requestmanaged-bean-scope>
managed-bean>

Check

Now create a checkusername.jsp to check whether given username is valid. It sends a message if username is already exists otherwise it sends empty string (nothing).

<%@ page import="java.sql.*"  contentType="text/plain"%>
<%
String username = request.getParameter("username");  // sent from client
// connect to oracle using thin driver
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","youruser","yourpassword");
PreparedStatement ps = con.prepareStatement("select username from users where username = ?");
ps.setString(1,username);
ResultSet  rs = ps.executeQuery();
if ( rs.next()) { // found username
    out.println("Username is already present!");  // send this to client
}
rs.close();
ps.close();
con.close();
%>

Deploy and Test

Now deploy the web application and run register.jsp. If you enter a username that is already present in USERS table then we get message - Username is already present - in SPAN item on the right of username field. If username is unique then SPAN item is set to empty string ( as JSP returns nothing).

from:http://www.srikanthtechnologies.com/blog/java/jquerywithjsf.aspx

junly 2011-05-30 21:38 发表评论

js巧用qq接口得到当前IP

junly — Mon, 02 Aug 2010 09:04:00 GMT

junly 2010-08-02 17:04 发表评论

jquery radio取��|��checkbox取��|��select取��|��radio选中�Q�checkbox选中�Q�select选中

junly — Tue, 11 May 2010 01:31:00 GMT

摘要: 获取一�l�radio被选中��的�?var item = $('input[@name=items][@checked]').val(); 获取select被选中��的文本 var item = $("select[@name=items] option[@selected]").text(); select下拉框的�W�二个元素�ؓ当前选中�?$('#select_id')[0].selected... 阅读全文

junly 2010-05-11 09:31 发表评论

jQuery-强大的jQuery选择�?(详解)[转]

junly — Thu, 21 Jan 2010 03:48:00 GMT

摘要: 1. 基础选择�?nbsp;Basics 名称说明举例 #id �Ҏ��元素Id选择 $("divId") 选择ID为divId的元�? ... 阅读全文

junly 2010-01-21 11:48 发表评论

�l�Dreamweaver安装jQuery插�gjQuery_API.mxp

junly — Wed, 20 Jan 2010 04:38:00 GMT

要让Dreamweaver支持jQuery自动提示代码功能�Q�方法很��单，下蝲一个插件�?a title="http://xtnd.us/dreamweaver/jquery" >jQuery_API.mxp[点击下蝲]�?/p>

在Dreamweaver里依�ơ选择“命��o” -> “扩展��理” -> “安装扩展” -> …�Q�就会自动安装了�?/p>

成功后重启Dreamweaver�Q�就大功告成了�?br />
点击下蝲DW cs4的jQuery语法提示插�g�Q?a >jquery_api_for_dw4

注意�Q�如果您安装的是�_��版的Dreamweaver�Q�那么请先下�?a title="http://www.adobe.com/cn/exchange/em_download/em18_download.html" >Adobe Extension Manager 插�g��理�?/a>[点击下蝲]�Q�我自己是cs3的，因此该处链接也是适用于cs3�Q�请�Ҏ��自己相应版本选择下蝲�?/p>

junly 2010-01-20 12:38 发表评论

ajax 书签

junly — Wed, 30 Dec 2009 07:17:00 GMT

框架:

Yahoo UI
ProtoType
JQuery
OpenRico
ExtJS
Scriptaculous
DoJo
Moofx
QoodXoo
GWT
TacoNite
Sarissa
Spry

��d��Q�图片展�C�）

Galleria
FrogJS
HighSlide
SmoothGallery
DHTMLGoodies - Image Slideshow
Google Slideshow
JQuery Cycle
PhatFusion Gallery
Ajax Slideshow with XML
TripTracker Slideshow
Aeron Slideshow
WebTwo Ajax Slideshow
Spry Gallery Demo
jQuery ImageStrip Slideshow
MiniShowCase
Ajax Coverflow (Slideflow)
Lightweight Gallery
Livepipe Photo Folder
jaS Gallery
Mooflow
Cross browser toys Gallery
Moo Cycle

菜单

Sliding Bar Menu - Mootools
jQuery Fastfind Menu
Apple Dock
Image Menu amongst others - as seen on Microsoft
Tree menu
Context Menu
LavaLamp for jQuery
Slashdot menu
Mootools Menu copy
Css Dock Menu
Nice Horizontal menu
Accessible Expanding Menu
MultiLevel Menu - jQuery
jQuery HoverAccordion
Apple Hover Menu sim
Simple Javascript Accordian
StickMan Labs Accordian
MooTools clone
Nyko Glitter Tabs
Horizontal Accordion
Colour Transition
Dropdown Menu with jQuery

模式�H�口/ Lightboxes

Livepipes Modal Box
Lightbox gone wild
Thickbox
SubModal
Lightbox without Images
lightbox
Moodalbox
Lightwindow
Videobox: Lightbox for videos
Facebox
Multibox
Shadowbox
GlassBox
jQuery Lightbox Plugin
jQuery Lightbox Plugin Bal
Highslide JS
YUI based Lightbox
Mediabox
SqueezeBox
iBox
mooSlideBox
Smoothbox

鼠标提示

Javascript Focusing Library
Nice titles
Nice Titles Revision
Ajax Enabled Help Balloons
jTip
jQuery plugin tooltip
qTip
Cody Lindley’s Tooltip
Boxover
SuperNotes
Coda Puff Effect

表单

jNice - Jquery Nice Forms
Custom Checkboxes
Checkbox Group
Ajax driven combobox

�Q�小�l��g�Q�Widgets

DragnDrop Library
AutoComplete
Fat Focus
Form Field hints
UI component for Prototype
Interface Elements for jQuery
jQuery ScrollTo
jScrollPane
AutoSuggest AutoComplete
Ajax AutoComplete
Autocomplete with JSON

其他

Logging Framework JS

地图

Web map server Javascript library
Google Maps Api
Ajax GIS client
MapStraction
Giant Pan
Zoomify

junly 2009-12-30 15:17 发表评论

LavaLamp mean

junly — Sun, 06 Dec 2009 15:18:00 GMT

��h��flash效果的菜单，��Z��jquery

Download the zip file version 0.2.0 of LavaLamp and open the demo.html to check it out for yourself

LavaLamp menu
来源�Q�http://gmarwaha.com/blog/?p=7

��译�Q�lxr

转蝲��h��明出厅R�?/p>
预览�Q?/strong>DEMO1

��鼠标放在上面的例子上，你就会感觉到Lava Lamp的完��效果。LavaLamp menu是基于jquery库的�Q�就我个��言�Q�我认�ؓ它的效果�q�不亚于flash菜单�Q�而且它比flash要小得多。就像你知道的它仅仅只有700bytes�?/p>

我常注意刎ͼ�授权一般在最�l�版本。现在我诚落在早期版本你��获得授权。这个效果最先是�?a included="null" $>Guillermo Rauch用mootools库写的。我所做的的仅仅是��Z��jquery的爱好者而将它改写�ؓ��Z��jquery库的。非常感谢Guillermo 创徏的完��效果。特别感�?a included="null" $>Stephan Beal��它取名�?#8220;LavaLamp”�Q�和Glen Lipka 在外观图形上的帮助，以及众多的jquery爱好者的支持�?/p>

作�ؓ一个用��L��面开发者，我们知道用户最常用的是菜单。我们一直追求的��是吸引用户的眼球，我相信LavaLamp向这一方向�q�出了一步。在�q�些废话让你厌烦之前让我们开始将LavaLamp加入��C��的网站中�?br /> 我希望你认同一个典型的html部�g�?个不同的元�g�l�成�?br />

一个标记正��的html
css
javascript

现在让我们按照上面的步骤��LavaLamp菜单加入��C��的网站中。在用jquery库替换mootools库的�q�程中，我�ؓ你写了javascript和css以供使用。因此请你按照本��|��E�的步骤使用jQuery。在Guillermo Rauch
的页面中有mootools版本的教�E��?/p>
步骤1: HTML
�׃��大多数用��L��面开发�h员认为无序清单（ ul �Q�是正确的语义结构菜�?��D��Q�所用就让我们从�q�里开始�?br />

<ul class="lavaLamp">
<li><a href="#">Homea>li>
<li><a href="#">Plant a treea>li>
<li><a href="#">Travela>li>
<li><a href="#">Ride an elephanta>li>
ul>
在上面的“ul”表示菜单�Q�每一�?#8220;li”��代表一个菜单项�Q�这一点对理解我们外加�?#8220;li”标记用来描述高亮昄��的菜单项有很大帮助。因��景仅仅是用来��化用的�Q�它�q�不代表一个菜单项�Q�因此我们可以从javascript中加载它。只是�ؓ了确保它与鼠标同步，��先�?#8220;你不必加入li”�Q�LavaLamp��特别注意它�Q�一旦加上，“li”所代表的背景就会看��h��是这��L��Q?
<li class="back"><div class="left">div>li>
步骤2: CSS
你可以修改css以获得自己想要的外观�Q�这里列��Z��一�U�，�?#8220;Bonus”部分列出了另外几�U�：
/**//* Styles for the entire LavaLamp menu */
.lavaLamp {}{
position: relative;
height: 29px; width: 421px;
background: url("../image/bg.gif") no-repeat top;
padding: 15px;
margin: 10px 0;
overflow: hidden; }
/**//* Force the list to flow horizontally */
.lavaLamp li {}{
float: left;
list-style: none;
}
/**//* Represents the background of the highlighted menu-item. */
.lavaLamp li.back {}{
background: url("../image/lava.gif") no-repeat right -30px;
width: 9px;
height: 30px;
z-index: 8;
position: absolute;
}
.lavaLamp li.back .left {}{
background: url("../image/lava.gif") no-repeat top left;
height: 30px;
margin-right: 9px;
} /**//* Styles for each menu-item. */
.lavaLamp li a {}{
position: relative;
overflow: hidden;
text-decoration: none;
text-transform: uppercase;
font: bold 14px arial;
color: #fff;
outline: none;
text-align: center;
height: 30px;
top: 7px;
z-index: 10;
letter-spacing: 0;
float: left;
display: block;
margin: auto 10px;
}
�怿�我这只是一个很��单的样式表，��L��l�向下看以理解每一部分的作用�?br /> �W�一�Q�我们用亮橙色作��景以及一些基本属性height�Q�width�Q�padding�Q�margin�{�等来风格化“ul”。我们��用了相对定位�Q�这��h��们才能确定背�?#8220;li”�?#8220;ul”的关�p�R��这��h��们才能自��q��动背�?#8220;li”�?
下一步，我们�?#8220;li”水��^�U�d��而不是垂直。默认时它是垂直�U�d��的，在这�U�情况下我们使用“float:left”以达到我们所需的效果�?br /> 下一步，我们使用“li”来高亮表�C�现在所在的菜单��，�q��用了sliding doors technique另外注意上面所提到的相对位�|��?br /> 最后一步，格式化链�?br /> 上面的规则不是很易懂�Q�如果你�Ҏ��写css没有信心我推荐你快速阅��M��?a included="null" $>CSS positioning。它��短且通俗易懂�?br /> 步骤3: Javascript
�q�是一个非常简单的部分�Q�所有的功能在Lava Lamp plugin中，作�ؓ一个开发者你要做的仅仅是��它包含��C��的网��中�?/p>
<script type="text/javascript" src="/path/to/jquery.js">script>
<script type="text/javascript" src="/path/to/jquery.lavalamp.js">script>

<script type="text/javascript" src="/path/to/jquery.easing.js">script>
<script type="text/javascript">
$(function() { $(".lavaLamp").lavaLamp({ fx: "backout", speed: 700 })});
script>

包含jquery库和LavaLamp plugin�Q�可选择��easing plugin也加入到其中�Q�因为它包含很多很酷的效果。例如本例的效果��p��引用easing plugin。在�q�里下蝲 jquery�Q?easing plugin�Q?LavaLamp plugin�?br /> 接下来，�?#8220;document.ready event”中，“fx”默认�?#8220;linear”“speed”�?#8220;500”�?br /> Bonus
仅仅��单修改一下css你就可获得一个完全不同风格的菜单�Q�当然其他部分不需要改�?br />
预览�Q?a title="DEMO" rel="shadowbox" included="null" $>DEMO2

�q�是另外一个，也只改动了css�Q�我惛_��q�不��观但我惌��说的是你仅仅是被自己的想象力所束缚了�?/p>
预览�Q?a title="DEMO" rel="shadowbox" included="null" $>DEMO3

源文件下�?/a>

junly 2009-12-06 23:18 发表评论

事�g昄��声明

junly — Sun, 29 Nov 2009 13:55:00 GMT

junly 2009-11-29 21:55 发表评论

javascript语法_函数_对象_数组

junly — Sun, 29 Nov 2009 13:52:00 GMT

junly 2009-11-29 21:52 发表评论

javascript DOM

junly — Sun, 29 Nov 2009 13:51:00 GMT
     摘要:

3 在web.xml中配�|?br />
dwr
org.directwebremoting.servlet.DwrServlet

  debug
  true

0

  dwr
  /dwr/*

4 java�c?br />
5 ��试 http://127.0.0.1:8080/dwrpro/dwr/
6 ��面代码

junly 2009-10-29 13:27 发表评论