Techniques used in Java software development

I'm a JAVAEE. General companies require you to be familiar with frameworks, such as Hibernate, Spring, EJB, Struts, JSF, Seam, and containers: Weblogic, JBOSS, Tomcat, etc.

In the direction of JAVAEE (old version called J2EE), we need to learn the technology of pages, that is, html, DHTML and JAVASCRIPT. AJAX is popular now, which means asynchronous refresh. You don't need to know so much, just learn the basics first. Then we must master the knowledge of database, master SQL language, learn to install and configure a database connection pool and so on. Database recommends learning ORACLE and MYSQL.