Hello World, a simple JSR 168 Portlet In the past three years, the company is facing information, process integration issues, "Enterprise Portal" and "Enterprise Application Integration" have become a hot topic in IT industry. IT manufacturers and open source organizations at home and abroad have developed a variety of enterprise portal servers. Single is a Java camp, IBM has released WebSphere Portal Server 1.2 / 2.1 / 4.x / 5.x, Apache Software Foundation launched JetSpeed, BEA, ORACLE, SAP, and Sun also introduced their respective Portal servers. These portal servers provide different Java API to develop portlets to application system developers, and application system developers have to use the same portLet using the different portal servers using the same portlets. Treating people, I hope that one day can write a portlet application that can run on most Portal servers like a day of writing Java Servlet.
