本文以Hello World为例，介绍如何使用JSR 168 API编写portlet，打包成portlet应用，部署portlet应用到portlet容器上。最后给出JSR 168的参考实现－Apache pluto的安装配置。

pluto.zip: Pluto ephemeris size 10 KB. Trigonometric expansion for ephemeris of Pluto. Longitude accuracy 20" vs DE102 冥王星星历计算程序。-pluto.zip: Pluto ephemeris size 10 KB. Trigonometric expansion for ephemeris of Pluto. Longitude accuracy 20

该程序将太阳系中冥王星轨道用c语言模拟并作出模拟轨迹-The program will use the solar system in orbit Pluto c language simulation and trajectory simulation

Simulata Pluto-Generate code on Matlab