We cannot imagine using our mobile phone or laptop without web applications. There is a huge number of web applications available now, on the internet to meet all the user’s necessities. Applications for booking transport services, food delivery, education, entertainment, health, and more are at our fingertips today. Where it can say that without using a web application a professional’s daily routine is incomplete. Most of these applications are designed using Java technologies, Let’s understand some Java technologies used in web applications.
Java Technologies for web applications
Java is the most widely used technology for web applications. There are many Java technologies available for developing web applications. You can choose any of the technology depending upon your requirement. Here is the list of Java technologies for web applications.
- Servlet API
- JDBC API
- Java Persistence API
- JavaServer Faces Technology
- Java Message Service API etc.
The classes and interfaces are primarily defined by the Java Servlet API package. If this bundle includes several types of interfaces, such as a filter, filter chain, servlet, servlet configuration, etc. This servlet operates on the server-side without any program of its own, as an HTML user interface(UI) or API packages for GUI. In improving the applications hosted by web servers, Java servlets are handy. And the request-response model parallels the growth of web applications. The added benefit of this technology is that it is platform-neutral and allows you to create web pages on any platform. In responding to client requests by establishing contact with databases, Java servlets are functional.
The developers use this Java server page(JSP) technology to create dynamic web pages because this is both server and platform-independent. JSP is having access to the entire Java API family hence, you can avoid CGI(Common Gateway Interface) for embedding dynamic elements in HTML pages. It is handy to do web development with special JSP tags because it aids in copying Java code to HTML pages. The JSP document contains two types of text, one is text-format like HTML, WML, XML, etc . and the other is JSP technology elements to govern the dynamic web page contents. JSP is the branch technology from Java EE, which allows you to create web applications rapidly.
The JDBC(Java Database Connectivity) technology enables you to call on the SQL database queries using Java language methods. You can apply this JDBC in other technologies like JSP, Java servlet API, enterprise bean, and more. There are four different JDBC drivers, they are JDBC-ODBC bridge driver, Network protocol driver, Thin driver, and Native driver helps to connect the database. JDBC is having two parts, one is the application-level interface and the other is the service provider interface. The first one is whose components help in accessing the database and the second part is to connect the JDBC driver to the Java EE platform.
4.Java Persistence API
Java Persistence API is nothing but a Java Technology based solution for persistence. This is the object-oriented model to connect the gap between the object-oriented model and the relational model. It is the easiest method to store or retrieve a large amount of data at a time because you need not write any code or use a framework here to interact with the database. There are three major areas in Java Persistence API technology they are:
- The Java Persistence API
- The query language and
- Object-relational mapping metadata
5.Java Message Service API
Messaging is peer-to-peer communication between clients. The sender client creates, sends the message, and the receiver client receives, reads the message. The combination of enterprise messaging and Java technology is the Java Message Service API.
Messaging enterprise is flexible and reliable where JMS API attaches a framework to it, which enables you to develop portable messaging-based applications in Java programming language. JMS plays a vital role in boosting developers’ productivity by redefining the set of programming strategies and messaging concepts that a JSM technology-based messaging system supports.
Hope you are familiar with all the five web application technologies explained in this article. start practicing these technologies to gain hands-on experiences. Learn more Java web application technologies from here. It is suggested to know about the Java technologies before you learn to code as it helps to create a perfect pathway in this technology after knowing all its applications.