This report presents a case study of implementing an English Learning Website (ELW) using Servlet and JSP technologies.  English Learning Website is a web application that runs on Tomcat web server. It provides with international students whose mother language is not English a friendly online environment in learning English vocabulary and increasing reading ability. The system administrator can update data from the database directly. The system consists of eight functions: Vocabulary Level Testing, Vocabulary Studying, Lesson Testing, Reading, Online Dictionary, User Comments, Update Vocabulary Database, and Update Article Database. A two-level index structure is designed for the vocabulary database. A two-level searching algorithm is developed for this structure in order to achieve fast searching in large database and multi-user environment.