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Created by James on April 24, 2012 14:01:39
Last update: April 24, 2012 14:01:39
This is the Mathias Bynens placeholder plugin with several bug fixes of my own.
/*! http://mths.be/placeholder v2.0.7 by @mathias ...
Created by Fang on April 16, 2012 13:32:10
Last update: April 16, 2012 13:32:10
There are two steps to create a custom function for JSP:
Declare the function in the TLD:
<?xml version="1.0" encoding="UTF-8" ?>
<taglib...
Implement the function (must be static):
package com.example;
public class UrlTransl...
To use the function:
<%@ taglib uri="http://www.example.com/jsp/tags" p...
Created by Fang on March 30, 2012 10:07:25
Last update: March 30, 2012 10:09:08
After a user resets a password, I want to force the user to change the password before she gets access to secured content. This is usually done with a servlet filter. But with Spring MVC, you can also use a HandlerInterceptor . According to Spring JavaDoc: HandlerInterceptor is basically similar to a Servlet 2.3 Filter, but in contrast to the latter it just allows custom pre-processing with the option of prohibiting the execution of the handler itself, and custom post-processing. Filters are more powerful, for example they allow for exchanging the request and response objects that are handed down the chain. Note that a filter gets configured in web.xml, a HandlerInterceptor in the application context. As a basic guideline, fine-grained handler-related preprocessing tasks are candidates...
Created by nogeek on March 13, 2012 11:53:49
Last update: March 13, 2012 11:53:49
A. To configure Apache httpd to proxy Tomcat using HTTP: Load Apache httpd modules ( httpd.conf ):
LoadModule proxy_module /usr/lib/apache2/modules/m... Configure Apache httpd proxy: <VirtualHost *:80> ServerAdmin webmaster@my... Configure Tomcat HTTP connector with appropriate proxyName and proxyPort : <Connector port="8080" protocol="HTTP/1.1"... Note: context path must be the same for httpd and Tomcat. B. To configure Apache httpd to proxy Tomcat using AJP: Load Apache httpd modules ( httpd.conf ): LoadModule proxy_module /usr/lib/apache2/modules/m... Configure Apache httpd proxy: <VirtualHost *:80> ServerAdmin webmaster@my... Configure Tomcat AJP connector: <Connector port="8009" protocol="AJP/1.3" redirect... You can try this if context path must be changed between Tomcat and httpd: <VirtualHost *:80> ServerAdmin webmaster@my... But this may not work in case the servlet context path is written in the HTML content. ProxyPassReverse only...
Created by Fang on March 05, 2012 20:11:56
Last update: March 05, 2012 20:11:56
This is a bare bones Maven project to get started with Java JSR 303 bean validation.
Directory structure:
./pom.xml
./src
./src/main
./src/main/jav...
pom.xml :
<project xmlns="http://maven.apache.org/POM/4.0.0"...
which includes dependencies on JUnit, Java bean validation API and the Hibernate validator reference implementation.
Created by Fang on February 23, 2012 14:25:57
Last update: March 01, 2012 13:53:59
Some example snippets for Spring message configuration and usage.
To configure a message source in Spring context (basename=messages):
<bean id="messageSource"
class="org.springf...
Locale change interceptor can also be setup with:
<?xml version="1.0" encoding="UTF-8"?>
<beans x...
The messages file should be named messages.properties (or messages_en.properties , etc.) and located on CLASSPATH , for example: WEB-INF/classes .
To use a message resource in JSP:
<%@ taglib prefix="spring" uri="http://www.springf...
Created by Dr. Xi on February 13, 2012 20:48:56
Last update: February 13, 2012 20:48:56
When you insert an attribute in JSP:
<%@ taglib uri="http://tiles.apache.org/tags-tiles...
you must define the attribute in tiles definitions:
<definition name="/home" template="/WEB-INF/templa...
Otherwise you'll get runtime exception.
The ignore attribute, which defaults to false , will suppress the runtime exception when the attribute is not defined in tiles definition:
<%@ taglib uri="http://tiles.apache.org/tags-tiles...
Created by Fang on February 10, 2012 16:17:13
Last update: February 10, 2012 16:17:13
The annotation @org.hibernate.annotations.Type overrides the default hibernate mapping type used for a column. This can usually be omitted since Hibernate normaly infers the correct type to use.
But @Type is required in ambiguous scenarios such as a java.util.Date attribute, which can map to SQL DATE , TIME or TIMESTAMP . You use the @Type("timestamp") annotation to tell Hibernate that a timestamp converter should be used, which identifies an instance of org.hibernate.type.TimestampType .
@Type can also be used to identify custom type converters, which can be defined with @TypeDef at the class level:
@TypeDefs(
{
@TypeDef(
na...
or with an xml file:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mappi...
Created by James on January 10, 2011 15:20:10
Last update: February 03, 2012 10:10:14
Dojo ShrinkSafe: http://shrinksafe.dojotoolkit.org/ : command line utility written in Java, based on Rhino - JavaScript engine written in Java.
Douglas Crockford's JSMIN: http://crockford.com/javascript/jsmin : command line utility written in C, can download MS-DOS exe.
Dean Edwards' Packer: http://dean.edwards.name/packer/ : online tool, or .NET, Perl, PHP application.
YUI Compressor: http://developer.yahoo.com/yui/compressor/ : command line utility written in Java.
Google Closure Compiler : command line Java application, web application, or RESTful API.
One problem is, the compressor utility may not be 100% reliable. So make sure to test the compressed script.
Created by James on February 02, 2012 16:09:05
Last update: February 02, 2012 16:09:17
flowplayer is another way to embed Flash in a web page. The code looks like this:
<object width="6400" height="380" data="swf/flowpl...
You need to download two swf files:
http://releases.flowplayer.org/swf/flowplayer-3.2.1.swf
http://releases.flowplayer.org/swf/flowplayer.controls-3.2.0.swf
