Getting started with Apache Struts 2, with Netbeans 6.1

Transcription

1 Getting started with Apache Struts 2, with Netbeans 6.1 There are plenty of guides that tell you how to start with struts 2, but most of them are incomplete or don t work. This guide even makes sure you have IDE JavaDoc support for struts 2 libraries. (Press Ctrl- Space to get details about methods and classes in struts 2 libraries) Download Struts 2 here : Download the Full Distro, so that we get all libraries and docs. (docs are important if u want to have IDE support help and tooltips and syntax) Full Distribution: o struts all.zip (91mb)[PGP][MD5] As of this writing, this is the latest version of Struts. Download Netbeans 6.1 here : or here : Download the full bundle (under the All column) size about 220 MB Choose a folder for all your JAVA material that has NO SPACES in its path. Like C:\Java C:\Program Files has a space, so it has some issues with the Sun Application Platform, which you might need after development.

2 Other downloads : [These are not necessary now, but just download them while working on this guide] Eclipse for JavaEE Dev : Eclipse IDE for Java EE Developers (163 MB) Java Application Platform : App Platform + JDK Java Standard Edition [SE] : JDK 6 Update 7 Install as follows : This is how a pro I knew advised to set a comp up for Java EE Dev. You can install anywhere, but the Guide will use these assume, this is how you ve installed things. 0. Install Java SE (JDK 6 Update 7) to C:\Java\jdk1.6.0_07 and the packaged Java Runtime Environment (Public JRE) to C:\Java\jre1.6.0_07 Note : No Spaces in the path 1. Extract struts all.zip to C:\Java. This will create a folder C:\Java \struts Install Netbeans 6.1 to C:\Java\NetBeans6.1.[ Note: There is no space in the path] Along with the Apache Server packed with netbeans, you need to press the customize or advanced button to install the packaged apache server, and to set your own path. 3. After Netbeans, the packaged apache server will ask for path give C:\Java ApacheTomcat Note: No Space here also My comp is set up like this C:\Java\ ApacheTomcat C:\Java\ NetBeans6.1 C:\Java\ jdk1.6.0_04 C:\Java\ jre1.6.0_04 C:\Java\ struts C:\Java\ Eclipse - from netbeans-6.1-ml-windows setup - from netbeans-6.1-ml-windows setup - from jdk-6u4-windows-i586-p setup - from jdk-6u4-windows-i586-p setup - from struts all.zip extract - from eclipse-jee-ganymede-win32 setup

3 C:\Java\ AP C:\Java\glassfish-v2ur2 C:\Java\Nwork C:\Java\Ework C:\Java\ StrutsBlank - from java_app_platform_sdk-5_05-windows setup - from java_app_platform_sdk-5_05-windows setup - Netbeans WorkSpace -Eclipse WorkSpace -Contents of struts2-blank war file I Created my POJOs i.e Plain Old Java Objects Business model classes and helper classes in Eclipse, just to know whats there in the IDE, and compiled them to JAR files. Then I used these JARs in the WebApplication fully done in NetBeans. But leave that, we ll see how to set up struts 2 and netbeans, fully dev-ready Important Stuff (so don t deviate!) : Create a new Web Application in NetBeans File-> New Project..-> Category:Web -> Projects:Web Application

4 Choose Java EE5 as the Java EE Version, and Apache Tomcat as the Server (which we installed from the netbeans setup itself) If the server is not there Add it, choosing the path C:\Java\ ApacheTomcat as the home directory of the server.

5 DO NOT ADD ANY Frameworks like struts of JSF now, you can add em later. Click Finish. Go to C:\Java\ struts-2.1.2\ apps folder. Open WinZip. Drag - Drop the struts2-blank war onto the WinZip window. Press the Extract button on the top of the WinZip window and extract to C:\Java\ StrutsBlank. You must type this in cause StrutsBlank is a folder WinZip will have to create to place the contents of the WAR file. Come back to NetBeans, Go to Tools-> Libraries, Click on New Library.. button Type in Struts2Library as name and Press OK Then Press Add JAR/Folder.. button and in the open file dialog, navigate to C:\Java\StrutsBlank\WEB- INF\lib Select all the JAR files in there pressing the SHIFT key, and add em.

6 Go to Javadoc Tab, Press Add Zip/Folder button and in the Open Folder Dialog navigate to C:\Java\struts-2.1.2\docs\struts2-core and select apidocs folder and click Add Zip/Folder button in the dialog Press Ok that closes the Library Manager dialog box.

7 Now Right Click the Libraries folder in the Projects window in the netbeans IDE, select Add Library.. and add the Struts2Library. Navigate to C:\Java\StrutsBlank in windows explorer and Drag-Drop the C:\Java\StrutsBlank\example folder into the NetBeans Web Pages treenode Delete the Web Pages\WEB-INF\web.xml in netbeans Drag-Drop the C:\Java\StrutsBlank\WEB-INF\web.xml file into the NetBeans Web Pages\WEB-INF treenode Delete the Web Pages\ index.html in netbeans Drag-Drop the C:\Java\StrutsBlank\index.html file into the NetBeans Web Pages treenode Right-Click the Source Packages treenode in NetBeans, and New->Java Package, and type in example as the package name. This name is necessary to allow the blank app to get working. Drag-Drop all the 6 files in C:\Java\StrutsBlank\WEB-INF\src\java\example onto the Source Packages\example treenode Drag-Drop the 2 XML files in C:\Java\StrutsBlank\WEB-INF\src\java example.xml and struts.xml to the Source Packages treenode[ such that they come under the default package]

8 Thus we have moved all XML and.jsp and.java files from blank app to netbeans. After all that your Project Explorer will belike : Build using F11 key.

9 NetBeans will have created two folders for you build and dist. build\web\web-inf\lib and build\web\web-inf\classes are automatically created and populated with the JAR files and.class files. dist will have the WAR file that u can use to distribute your web app. Run using F6 key to see the output. If any error while building or running, Save everything, close netbeans AFTER closing the server by pressing the green square stop button in the serve tab of the netbeans IDE. Then go to task manager close all java.exe process and any and all server process also and reopen netbeans and press f6. I localized to Tamil. You should see Spanish instead of Tamil in the output.