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3.2. Setting up a new project
Task
Create a Seam project using the seam-gen command line tool.
Prerequisites:
- JDK 6 (see Section 37.1, “Java Development Kit Dependencies” for details)
- JBoss Enterprise Application Platform 5
- Ant 1.7.0
- A recent version of Eclipse.
- A recent version of the JBoss IDE plug-in for Eclipse.
- Add your EAP instance to the JBoss Server View in Eclipse.
- The TestNG plug-in for Eclipse.
- An EAP server running in debug mode.
- A command prompt in the directory where you unzipped the Seam distribution.
Procedure 3.1. Create a Seam project with seam-gen
- Configure seam-gen for your environment by typing the following in your command line interface:
cd seam_distribution_dir; ./seam setup
cd seam_distribution_dir; ./seam setupcd seam_distribution_dir; ./seam setupcd seam_distribution_dir; ./seam setup
Copy to Clipboard Copied! Toggle word wrap Toggle overflow The following output will be displayed:Copy to Clipboard Copied! Toggle word wrap Toggle overflow You will then receive the following prompts for required information:[input] Enter the directory where you want the project to be created (should not contain spaces) [/home/<username>/projects] [/home/<username>/projects]
[input] Enter the directory where you want the project to be created (should not contain spaces) [/home/<username>/projects] [/home/<username>/projects]
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Pressing Enter will accept the shown default (/home/<username>/projects).Alternatively you can enter a different value.[input] Enter your JBoss AS home directory [/var/lib/jbossas] [/var/lib/jbossas]
[input] Enter your JBoss AS home directory [/var/lib/jbossas] [/var/lib/jbossas]
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Again, press Enter to accept the default or enter a new value:/home/<username>/path/to/jboss-as
/home/<username>/path/to/jboss-as
Copy to Clipboard Copied! Toggle word wrap Toggle overflow [input] Enter your JBoss AS domain [default] [default]
[input] Enter your JBoss AS domain [default] [default]
Copy to Clipboard Copied! Toggle word wrap Toggle overflow If you use a custom domain, enter it here.[input] Enter the project name [myproject] [myproject]
[input] Enter the project name [myproject] [myproject]
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Enter the name of your project. Not entering a name will default to naming your projectmyproject
.For this example, the project will be calledhelloworld
.[echo] Accepted project name as: helloworld
[echo] Accepted project name as: helloworld
Copy to Clipboard Copied! Toggle word wrap Toggle overflow [input] Select a RichFaces skin [glassX] (blueSky, classic, darkX, deepMarine, DEFAULT, emeraldTown, [glassX], japanCherry, laguna, ruby, wine)
[input] Select a RichFaces skin [glassX] (blueSky, classic, darkX, deepMarine, DEFAULT, emeraldTown, [glassX], japanCherry, laguna, ruby, wine)
Copy to Clipboard Copied! Toggle word wrap Toggle overflow You can choose a skin for your project from the list presented. You can see thatglassX
is the default.[input] Is this project deployed as an EAR (with EJB components) or a WAR (with no EJB support)? [war] (ear, [war])
[input] Is this project deployed as an EAR (with EJB components) or a WAR (with no EJB support)? [war] (ear, [war])
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Enter the appropriate archive format.EAR
projects support Enterprise JavaBeans 3.0 (EJB3) and require Java EE 5.WAR
projects do not support EJB3, but can be deployed to a J2EE environment, and their packaging is simpler.If you have an EJB3-ready application server like JBoss installed, chooseear
. Otherwise, choosewar
. This tutorial assumes you are using anEAR
deployment, but you can follow these steps even if your project isWAR
-deployed.Copy to Clipboard Copied! Toggle word wrap Toggle overflow You will be prompted to nominate the package names for your Java classes, session beans, entity beans and test cases.[input] What kind of database are you using? [hsql] ([hsql], mysql, derby, oracle, postgres, mssql, db2, sybase, enterprisedb, h2)
[input] What kind of database are you using? [hsql] ([hsql], mysql, derby, oracle, postgres, mssql, db2, sybase, enterprisedb, h2)
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Nominate your database,mysql
, for example. The default ishsql
.[input] Enter the filesystem path to the JDBC driver jar [] []
[input] Enter the filesystem path to the JDBC driver jar [] []
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Enter the path to your system's JDBC driver;/usr/share/java/mysql.jar
for example.You may see the following output:[input] skipping input as property driver.license.jar.new has already been set.
[input] skipping input as property driver.license.jar.new has already been set.
Copy to Clipboard Copied! Toggle word wrap Toggle overflow [input] Enter the Hibernate dialect for your database [org.hibernate.dialect.MySQLDialect] [org.hibernate.dialect.MySQLDialect]
[input] Enter the Hibernate dialect for your database [org.hibernate.dialect.MySQLDialect] [org.hibernate.dialect.MySQLDialect]
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Nominate the appropriate Hibernate dialect.[input] Enter the JDBC DataSource class for your database [com.mysql.jdbc.jdbc2.optional.MysqlDataSource] [com.mysql.jdbc.jdbc2.optional.MysqlDataSource] [input] Enter the JDBC driver class for your database [com.mysql.jdbc.Driver] [com.mysql.jdbc.Driver]
[input] Enter the JDBC DataSource class for your database [com.mysql.jdbc.jdbc2.optional.MysqlDataSource] [com.mysql.jdbc.jdbc2.optional.MysqlDataSource] [input] Enter the JDBC driver class for your database [com.mysql.jdbc.Driver] [com.mysql.jdbc.Driver]
Copy to Clipboard Copied! Toggle word wrap Toggle overflow You will be prompted to nominate the JDBC classes for your instance.[input] Enter the JDBC URL for your database [jdbc:mysql:///test] [jdbc:mysql:///test]
[input] Enter the JDBC URL for your database [jdbc:mysql:///test] [jdbc:mysql:///test]
Copy to Clipboard Copied! Toggle word wrap Toggle overflow The default URL will differ based on your response to the earlier database question.[input] Enter the database username [sa] [sa]
[input] Enter the database username [sa] [sa]
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Nominate the username for access to the database, for exampleroot
.[input] Enter the database password [] []
[input] Enter the database password [] []
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Set the password for the above username.You may see the following message:[input] skipping input as property hibernate.default_schema.entered has already been set.
[input] skipping input as property hibernate.default_schema.entered has already been set.
Copy to Clipboard Copied! Toggle word wrap Toggle overflow [input] Enter the database schema name (Enter '-' to clear previous value) [] [] [input] Enter the database catalog name (Enter '-' to clear previous value) [] []
[input] Enter the database schema name (Enter '-' to clear previous value) [] [] [input] Enter the database catalog name (Enter '-' to clear previous value) [] []
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Name the database schema and catalogue as prompted.[input] Are you working with tables that already exist in the database? [n] (y, [n])
[input] Are you working with tables that already exist in the database? [n] (y, [n])
Copy to Clipboard Copied! Toggle word wrap Toggle overflow If you are working with an existing data model, make sure to tell seam-gen that tables already exist in the database.[input] Do you want to recreate the database tables and execute import.sql each time you deploy? [n] (y, [n])
[input] Do you want to recreate the database tables and execute import.sql each time you deploy? [n] (y, [n])
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Again, answer as appropriate.- You will see the following output. Some details will differ in your instance, based on answers you provided to the above questions:
Copy to Clipboard Copied! Toggle word wrap Toggle overflow The time shown in this example is non-indicative of the actual time it will take to complete this task.
- Create a new project in our Eclipse workspace directory by entering one of the following commands:
./seam create-project
./seam create-project
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Or./seam new-project
./seam new-project
Copy to Clipboard Copied! Toggle word wrap Toggle overflow You will see the following output:Copy to Clipboard Copied! Toggle word wrap Toggle overflow This copies the SeamJAR
s, dependentJAR
s and the JDBC driverJAR
to a new Eclipse project. It generates all required resources and configuration files, a Facelets template file and stylesheet, along with Eclipse metadata and an Ant build script. The Eclipse project will be automatically deployed to an exploded directory structure in JBoss as soon as you add the project. To add the project, go to, type the Project name (in this case, helloworld
), and then clickFinish
. Do not selectJava Project
from the New Project wizard.
If your default JDK in Eclipse is not Java SE 6 JDK, you will need to select a compliant JDK. Go to .
Alternatively, you can deploy the project from outside Eclipse by typing
seam explode
.
The welcome page can be found at
http://localhost:8080/helloworld
. This is a Facelets page (view/home.xhtml
) created using the template found at view/layout/template.xhtml
. You can edit the welcome page or the template in Eclipse, and see the results immediately by refreshing your browser.
XML configuration documents will be generated in the project directory. These may appear complicated, but they are comprised primarily of standard Java EE, and require little alteration, even between Seam projects.
There are three database and persistence configurations in the generated project.
persistence-test.xml
and import-test.sql
are used while running TestNG unit tests against HSQLDB. The database schema and test data in import-test.sql
is always exported to the database before tests are run. myproject-dev-ds.xml
, persistence-dev.xml
and import-dev.sql
are used during application deployment to your development database. If you told seam-gen that you were working with an existing database, the schema may be exported automatically upon deployment. myproject-prod-ds.xml
, persistence-prod.xml
and import-prod.sql
are used during application deployment to your production database. The schema will not be exported automatically upon deployment.