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Created by Fang on January 06, 2014 12:22:17 Last update: January 06, 2014 12:22:17
Add <mvc:default-servlet-handler/> to the spring servlet config ( spring-servlet.xml ?) so that static files can be handled by the default servlet handler. This is a full configuration file for example:
<?xml version="1.0" encoding="UTF-8"?> <beans x...
Created by Fang on January 31, 2012 15:40:34 Last update: January 31, 2012 15:41:28
This is a simple Hello World application with Spring 3 MVC. Like the default Apache HTTPd welcome page, it displays " It works! " when successfully deployed. The sole purpose is to show the minimum elements needed to setup Spring 3 MVC. I use Maven since it's so much easier than downloading the dependencies manually. Directory layout:
./src ./src/main ./src/main/webapp ./src/...pom.xml :
<?xml version="1.0" encoding="UTF-8"?> <project...WEB-INF/web.xml :
<?xml version="1.0" encoding="UTF-8"?> <web-app...WEB-INF/applicationContext.xml (empty, but needed):
<?xml version="1.0" encoding="UTF-8"?> <beans x...WEB-INF/spring-servlet.xml :
<?xml version="1.0" encoding="UTF-8"?> <beans x...WEB-INF/jsp/home.jsp :
<!DOCTYPE html> <html> <head> <title>H...Build with:
mvn clean packageThe resulting webapp is target/springmvc.war .
Created by freyo on April 01, 2011 14:29:25 Last update: June 29, 2011 13:58:27
Start the emulator ( create an AVD if none exists)
$ tools/emulator -avd Simple8Create new project
$ tools/android create project \ > --package co...where " --target 2 " identifies the target platform as displayed by " tools/android list targets ", which is stored in the properties file default.properties in the project root folder. cd HelloWorld and install debug package onto the running emulator:
$ ant install Buildfile: build.xml [set...Launch the Hello World application on the emulator. You'll see something like this: Edit res/values/string.xml , change the contents to:
<?xml version="1.0" encoding="utf-8"?> <resourc...Edit res/layout/main.xml , change the contents to:
<?xml version="1.0" encoding="utf-8"?> <LinearL...The contents of the text area now refer to a string defined in the resource file strings.xml , instead...
Created by freyo on May 11, 2011 12:30:45 Last update: May 11, 2011 12:32:06
Android application builds use Xpath to query AndroidManifest.xml attributes. This is a simple build.xml to demo how it is set up:
<?xml version="1.0" encoding="UTF-8"?> <project...
Created by freyo on April 12, 2011 15:13:32 Last update: May 03, 2011 15:20:55
Create new project
$ tools/android create project \ > --package co...Edit res/values/string.xml , add strings for the main screen.
<?xml version="1.0" encoding="utf-8"?> <resourc...Add widgets to main layout ( res/layout/main.xml ).
<?xml version="1.0" encoding="utf-8"?> <LinearL...Edit src/com/android/apkinfo/GetAPKPermissions.java and change contents to:
package com.android.apkinfo; import android...Install the debug package to the emulator:
ant installThe screen should look like: Add display permissions activity. Start by creating a new layout res/layout/display_permissions.xml :
<?xml version="1.0" encoding="utf-8"?> <LinearL...Add the strings used by the new Activity ( res/values/strings.xml ):
<?xml version="1.0" encoding="utf-8"?> <resourc...Add the Display Permissions Activity ( src/com/android/apkinfo/DisplayPermissions.java ):
package com.android.apkinfo; import android...Change src/com/android/apkinfo/GetAPKPermissions.java to invoke the Display Permissions Activity:
package com.android.apkinfo; import android...Declare Display Permissions Activity in AndroidManifest.xml :
<?xml version="1.0" encoding="utf-8"?> <manifes......
Created by Dr. Xi on April 27, 2011 11:57:36 Last update: April 27, 2011 11:58:35
This is a sample struts-config.xml file for Struts 1.x .
<?xml version="1.0" encoding="UTF-8"?> <!DO...
Created by freyo on April 18, 2011 15:08:21 Last update: April 18, 2011 15:12:20
Generate android project
$ ~/android-sdk-linux_86/tools/android create proj...Create XML file res/xml/books.xml :
<?xml version="1.0"?> <catalog> <book id=...Edit layout ( res/layout/main.xml ):
<?xml version="1.0" encoding="utf-8"?> <Lin...Edit code ( src/com/android/xmlres/XMLResource.java ):
package com.android.xmlres; import java.io....Change activity label from app_name to booklist ( AndroidManifest.xml ):
<?xml version="1.0" encoding="utf-8"?> <manifes...Add value for string resource ( res/values/string.xml ):
<?xml version="1.0" encoding="utf-8"?> <resourc...Deploy and test:
Created by Fang on April 02, 2010 21:45:47 Last update: July 17, 2010 02:55:06
This is built upon the simple test application for JSTL , which contained a single servlet and a single JSP page. If I want to use it to test all available JSTL tags, the servlet and JSP page would be too complicated. Instead, I want to group the JSTL tags into separate JSP pages and display each group based on the requested URL. For example, if the URL ends with /CoreBasic , I'll display a page that contains the basic core tags; if the URL ends with /I18N , I'll display a page that contains the internationalization tags (e.g., <fmt:message> ). Furthermore, I want to delegate the handling of each group of tags to separate Java classes. This is the application I'll use for the...
Created by Fang on April 01, 2010 22:24:58 Last update: April 02, 2010 02:49:38
In this note I'll show you how to create and package a JSP custom tag. The purpose of this tag is to display a random splash image for a home page, among a set of images. We should be able to add or delete candidate splash images from the WAR archive without the need to change the JSP. This is the intended use of the tag:
<%@ taglib uri="http://custom.tag.com/demo" prefix...In the above example you provide a set of images named splash*.png (e.g., splash1.png, spalsh2.png, ...), and the tag will pick a random one to display when the JSP is rendered. Let's get started. I'll use Maven for this purpose. Create the standard Maven directory structure
./pom.xml ./src ./src/main ./src/main/jav...pom.xml
package tagdemo; import java.util.ArrayList......
Created by Fang on August 13, 2009 02:59:06 Last update: January 09, 2010 23:36:44
Maven requires JAVA_HOME to be set but the setting is tricky. It doesn't like a PATH inside quotes with a space in it.
C:\>@rem quotes and space doesn't work C:\>set ...
Created by Fang on September 07, 2009 16:39:37 Last update: September 07, 2009 18:43:04
It's easiest to use the archetype plugin to start a new Maven project. I'll use struts 1 as example since it's not in the built-in archetypes for archetype:generate . Generate a simple webapp with archetype:generate :
C:\work\maven>mvn archetype:generate -DarchetypeAr...It generates a directory structure like this:
struts1app struts1app/pom.xml struts1app/src...with a simple POM:
<project xmlns="http://maven.apache.org/POM/4.0.0"...Create settings.xml in $HOME/.m2 , add Java.net repository for Java EE dependencies:
<?xml version="1.0" encoding="UTF-8"?> <setting...Add Java EE and Struts dependencies in pom.xml . Note that the Java EE dependency has scope provided , meaning that the web app container provides the jars, therefore we don't need to bundle them with our war fie.
<project xmlns="http://maven.apache.org/POM/4.0.0"...Create a directory named java under main , create the Struts form and...
Created by Dr. Xi on December 12, 2007 20:30:01 Last update: December 12, 2007 20:32:23
This is a script to tail a log file through the web browser. It uses AJAX, apache web server, mod_python, UNIX utilities tail (requires the --lines switch) and wc . The log file may reside on the web server or any other host accessible from the web server through SSH. Although it's written in python, it should be easy to port to other languages such as Perl. Apache httpd.conf :
LoadModule python_module modules/mod_python.so ...Python script:
import time, os from os.path import basename ...