LET'S LEARN JAVA

Backup/Restore db using MySQL

2010-03-26T10:22:00.002+07:00

Type on your command prompt (windows) or terminal (linux)

To Backup : mysqldump -v -uroot -ppassword -hlocalhost db_user > "db_user.sql"

To Restore : mysql -v -uroot -ppassword -Ddb_user < "db_user.sql"

How to Install MySQL on Linux?

2010-03-26T09:54:00.004+07:00

After spending much time searching on google, blogs, and many others resource I finally found simple way to configure MySQL, here the steps :

1. Login as root and Open terminal then type :

shell> groupadd mysql // to add mysql as a group
shell> useradd -g mysql mysql // add user as mysql
shell> cd /usr/local

// unzip your MySQL source
shell> gunzip < /path/to/mysql-VERSION-OS.tar.gz | tar xvf -

// make a symbolic link called "mysql"
shell> ln -s full-path-to-mysql-VERSION-OS mysql

shell> cd mysql

// change owner as mysql
shell> chown -R mysql .

// change group as mysql
shell> chgrp -R mysql .
shell> scripts/mysql_install_db --user=mysql

// change the owner as root
shell> chown -R root .
shell> chown -R mysql data
shell> bin/mysqld_safe --user=mysql &

// this is for configure mysql as autorun services
shell> cp mysql.server /etc/init.d/mysql

// this is for changing access type of mysql
shell> chmod +x /etc/init.d/mysql

shell> cd /etc
shell> ln -s rc.d/init.d .

shell> chkconfig --add mysql

shell> chkconfig --level 345 mysql on

2. Setting PATH for MySQL

- open directory /etc/profile and find a file named "profile"

- Edit the file, add this path:

// you can load mysql in any directory
export PATH="$PATH:/usr/local/mysql/bin"

- do a test on terminal as you type mysql -version

3. Set MySQL password:

shell> mysql --user=root mysql
mysql> update user set password=PASSWORD("NEWPASSWORD") where User='agusjuliardi';
mysql> flush privileges; // Untuk reload privileges
mysql> quit

4. Add user MySQL :

// this is for creating a user
mysql> CREATE USER 'agus'@'localhost' IDENTIFIED BY 'some_pass';

// grant all privileges on to user "agus"
mysql> GRANT ALL PRIVILEGES ON *.* TO 'agus'@'localhost' WITH GRANT OPTION;

// create user "agus@%" -> this can be opened on client
mysql> CREATE USER 'agus'@'%' IDENTIFIED BY 'some_pass';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'agus'@'%' WITH GRANT OPTION;

// create user "admin"
mysql> CREATE USER 'admin'@'localhost';

// reload your changes
mysql> GRANT RELOAD,PROCESS ON *.* TO 'admin'@'localhost';

// create user "dummy"
mysql> CREATE USER 'dummy'@'localhost';

Hopefully Helpful...

Configuring Seam On Eclipse

2010-03-26T08:57:00.008+07:00

SEAM - Next generation enterprise java development

Seam is a powerful open source development platform for building rich Internet applications in Java. Seam integrates technologies such as Asynchronous JavaScript and XML (AJAX), JavaServer Faces (JSF), Java Persistence (JPA), Enterprise Java Beans (EJB 3.0) and Business Process Management (BPM) into a unified full-stack solution, complete with sophisticated tooling.

Seam has been designed from the ground up to eliminate complexity at both architecture and API levels. It enables developers to assemble complex web applications using simple annotated Java classes, a rich set of UI components, and very little XML. Seam's unique support for conversations and declarative state management can introduce a more sophisticated user experience while at the same time eliminating common bugs found in traditional web applications.

To begin development we need to configure seam on an opensource IDEs, one of them is Eclipse.

Here is the configuration :

1. Extract jboss-seam (here I use jboss-seam-2.1.1.GA.tar.gz) on your destination folder (I use D:\java-app\jboss-seam-2.1.1.GA.tar.gz)

2. Extract eclipse-jee-ganymede-SR2-win32.zip on D:\java-app folder.

3. Run eclipse.exe on your destination folder above.

4. On your first window choose workbench.

5. jboss tools installation

- extract JbossTools-ALL-win32-3.0.1.GA-R200905070146-H18.zip on D:\java-app
- run eclipse.exe
- choose Help menu -> Software Updates...
- find out jboss tools on your exclipse software updates to ensure jboss is available and works well.

6. Begin project deployment on Seam

seam setup:

- Create a new folder for project on D:\proyek.
Copy mysql-connector-java-5.1.0-bin.jar to D:\proyek
Open command prompt, type D:

type cd java-app\jboss-seam-2.1.1.GA

type seam setup

[input] Enter your Java project workspace (the directory that contains your Seam projects) [C:/Projects] [C:/Projects]
D:/proyek

[input] Enter your JBoss AS home directory [C:/Program Files/jboss-4.2.3.GA] [C:/Program Files/jboss-4.2.3.GA]
D:/java-app/jboss-4.2.3.GA

[input] Enter the project name [myproject] [myproject]

[input] Do you want to use ICEfaces instead of RichFaces [n] (y, [n])

[input] Select a RichFaces skin [classic] (blueSky, [classic], deepMarine, DEFAULT, emeraldTown, japanCherry, ruby, wine)

[input] Is this project deployed as an EAR (with EJB components) or a WAR (with no EJB support) [ear] ([ear], war)

[input] Enter the Java package name for your session beans [com.mydomain.myproject] [com.mydomain.myproject]
com.artmkn.session

[input] Enter the Java package name for your entity beans [com.artmkn.myproject] [com.artmkn.myproject]
com.artmkn.entity

[input] Enter the Java package name for your test cases [com.artmkn.myproject.test] [com.artmkn.myproject.test]
com.artmkn.test

[input] What kind of database are you using? [hsql] ([hsql], mysql, oracle, postgres, mssql, db2, sybase, enterprisedb, h2)
mysql

[input] Enter the Hibernate dialect for your database [org.hibernate.dialect .MySQLDialect] [org.hibernate.dialect.MySQLDialect]

[input] Enter the filesystem path to the JDBC driver jar [D:\java-app\jboss-seam-2.1.1.GA/lib/hsqldb.jar] [D:\java-app\jboss-seam-2.1.1.GA/lib/hsqldb.jar]
D:/proyek/mysql-connector-java-5.1.0-bin.jar

[input] Enter JDBC driver class for your database [com.mysql.jdbc.Driver] [com.mysql.jdbc.Driver]

[input] Enter the JDBC URL for your database [jdbc:mysql:///test] [jdbc:mysql:///test]
jdbc:mysql:///dbmaster

[input] Enter database username [sa] [sa]
root

[input] Enter database password [] []
enterprise

[input] Enter the database catalog name (it is OK to leave this blank) [] []

[input] Are you working with tables that already exist in the database? [n](y, [n])
y

[input] Do you want to drop and recreate the database tables and data in import.sql each time you deploy? [n] (y, [n])
n

[propertyfile] Creating new property file: D:\java-app\jboss-seam-2.1.1.GA\seam-gen\build.properties
[echo] Installing JDBC driver jar to JBoss AS
[copy] Copying 1 file to D:\projek\server\default\lib
[echo] Type 'seam create-project' to create the new project

BUILD SUCCESSFUL

seam create-project

type seam create-project on command prompt
if success the output must be:

BUILD SUCCESSFUL

type seam generate on command prompt
if success the output must be

BUILD SUCCESSFUL

seam restart

type seam restart on command prompt and type http://localhost:8080/myproject on your browser as shown below :

rich column vs jsf columns

2010-01-21T14:15:00.002+07:00

Rich column : We could use attributes such as "SortBy" and "FilterBy".

Jsf column : Only some attributes is available.

Do you find another?comment please...

JSF : Simple Date Format

2010-01-21T14:07:00.004+07:00

Sometimes we need to display Date Outputs.
There is customs format always used :

format : dd/MMM/yyyy kk:mm
Result : 26/Jan/2010 10:52

format : dd MMM yyyy kk:mm
Result : 26 March 2010 10:52

JSF : Using Currency Symbol

2010-01-21T13:42:00.020+07:00

This is the Code :

This the Output :

J2EE application using JBOSS SEAM

2009-09-09T10:19:00.004+07:00

This Output looks like desktop application

How to Install JBoss on Windows

2009-07-28T09:54:00.011+07:00

This is the simplest way to RunJboss on Windows.

1. Install Java, Here I use jdk-6u14-windows-i586.exe
After Installing jdk-6u14-windows-i586.exe, you need to configure Java_Home Path, here are steps:

- Open My Computer -> Properties -> Tab Advanced -> Environment Variables as shown below:

- Click New on User Variable -> Fill the Variable Name as Java_Home and Variable Value based on your Java Installation Directory as shown below :

- Check your java using command prompt to ensure java works well.

2. Install apache-ant-1.7.1-bin.zip,

- Extract your apache-ant-1.7.1-bin.zip on your Computer (here I use D://Java-app as My Destination Folder).

- Set your apache-ant path:
Open My Computer -> Properties -> Tab Advanced -> Environment Variables. Click New on User Variable -> Fill the Variable Name as Ant_Home and Variable Value based on your Apache Directory as shown below :

- Set PATH for your java and apache-ant. Click New on User Variable -> Fill the Variable Name as PATH and Variable Value as C:\Program Files\Java\jdk1.6.0_14\bin;D:\java-app\apache-ant-1.7.1\bin;%PATH%; as shown below :

- Check your ant using command prompt to ensure it works well.

3. Install JBOSS

- Extract your jboss-4.2.3.GA.zip on your Computer (here I use D://Java-app as My Destination Folder).

Set your Jboss path:
Open My Computer -> Properties -> Tab Advanced -> Environment Variables. Click New on User Variable -> Fill the Variable Name as JBOSS_Home and Variable Value based on your JBOSS Directory as shown below :

- Edit PATH, add D:\java-app\jboss-4.2.3.GA\bin; on Variable Value as shown below :

- Set JAVA_OPTS PATH:
Open My Computer -> Properties -> Tab Advanced -> Environment Variables. Click New on User Variable -> Fill the Variable Name as JAVA_OPTS and Variable Value as -Xms512m -Djava.awt.headless=true as shown below :

- Run run.bat on D:\java-app\jboss-4.2.3.GA\bin. Jboss will run succesfully as shown below:

- Open your browser and type http://localhost:8080/ on your address bar.Your JBoss home will be shown like the picture below :

Java2EE and JavaEE

2009-04-22T14:30:00.004+07:00

What is J2EE, and JEE ?
JEEJava Platform, Enterprise Edition or Java EE is a widely used platform for server programming in the Java programming language. The Java EE Platform differs from the Standard Edition (SE) of Java in that it adds additional libraries which provide functionality to deploy fault-tolerant, distributed, multi-tier Java software, based largely on modular components running on an application server.
The platform was known as Java 2 Platform, Enterprise Edition or J2EE until the name was changed to Java EE in version 5. The current version is called Java EE 5. The previous version is called J2EE 1.4.

Kamera Casio

2009-04-21T10:23:00.002+07:00

Dapatkan harga terbaik kamera digital Casio di Amazone: