(OFBiz is a very famous e-commerce mode and a very famous open source project. It provides a structure for creating a multi tier, distributed e-commerce WEB usage system based on the latest J2EE/XML standards and technical standards, and building large and medium-sized enterprise level, cross mode, cross database, cross server. The most important attribute of OFBiz is that OFBiz provides a complete set of components and tools for developing Java based web applications. Including entity engine, service engine, message engine, office flow engine, rule engine, etc. Session 1: free audition Session 2: paid trainees' introduction Guide Session 3: pre class environment preparation Description Session 4: OFBiz development environment building and reference materials Session 5: books and materials Session 6: introduction to e-commerce use, collective enterprises Session 7: members, warehouses, sites, stores Session 8: stores Session 9: product catalog, product classification, simple product release Session 10: product features, virtual products, product deformation Session 11: product price rules, Product Promotion............. Session 36: OFBiz Promotion Engine Explanation Session 37: Mini Language [Mini Speech] Definition and Analysis Session 38: Introduction to the interface foil process and common controls Session 39: Office - the fourth week [II] Session 40: Third party payment integration (Alipay) Session 41: Development of Restful API Introduction (JBossResteasy) Session 42: Development of a complete use Part I [CRUD use] Session 43: Development of a complete use Part II [AjaxForm])