j2ee

j2ee

Document

Design pattern

Transfer object design pattern

Data access object design pattern

Singleton pattern

Filters

Java validation filter

Some example about filter

JDBC

Easy and better way to use JDBC

Using batch update in JDBC

Using connection pool in tomcat

CDI

How to use producer

CDI tutorial VN

Sample code

Sample code 1

Sample code 2

Other

Sample model

Sample database