The Best Java Servlet Hosting for Java Apps in 2020

What is Java Servlet Hosting for Java Apps?

As one of the most popular programming languages in the world, Java is capable of some pretty amazing things.

Your favorite Android apps, online desktop games like Minecraft, and hundreds of thousands of e-commerce applications are all built with Java code.

But none of these apps would be possible without some form of Java hosting.

Java hosting depends on a combination of different Java programs working together to transfer data between a server and a client.

One of these essential programs is a server-side technology called a Java servlet.

How do you host your app using servlets, and how can servlet hosting improve the way that users view and interact with your Java app?

What is a Java Servlet?

A Java servlet is a smaller program within a server (think as piglet is to pig, servlet is to server) that extends its capabilities and responds to requests from a web browser in order to generate dynamic web content.

Java servlets are the Java-equivalent of PHP and ASP.NET technologies. But while they perform the same basic server-side functions, only servlets are compatible with the Java programming language.

There are two main types – generic servlets (sometimes referred to as basic servlets) and HTTP servlets. These are independent of any specific protocol, while HTTP servlets are specific to a particular HTTP protocol. Today, generic ones are rare – you’ll primarily be using HTTP types to host your Java app.

How Do Servlets Work?

Servlets are like the middleman between the client and the host server. When you or another user want to use the Java application you’ve built and hosted on the web, a request is sent from the client’s browser to the hosting server. A Java servlet translates the request so that it can be executed and then sent back to the client.

The Benefits of Using Servlet Web Hosting

Now that you know what they are and how they work, how can using them benefit your Java app? What makes them better for your business than other dynamic server-side programs like Common Gateway Interface (CGI)?

  • Performance: Your Java app will run faster with their help because they’re able to process multiple requests simultaneously, while CGI can only handle one request at a time.
  • Portability: Because they are written entirely in Java code, they’re entirely platform independent. That means that it’s easy to switch between operating systems without having to change a thing, saving you a considerable amount of time and frustration.
  • Security: Because they are a server-side technology, they inherit the protections of the host server. While this depends largely on the web hosting provider that you choose, it’s still far more secure than anything client-side.

What is a Java Servlet Container?

Java servlets are just one of the many programs that make up a Java Virtual Machine (JVM), and they can’t be deployed without the help of a Java servlet container.

A Java servlet container is a program responsible for the creation, execution, and destruction of servlets. The container provides an environment for servlets to run in and interacts with them to handle user requests.

Apache Tomcat is easily the most popular servlet container used by developers to host Java applications. Since its initial release in 1999, the free open-source program has been downloaded more than 10 million times, and remains a Java web hosting staple to this day.

Some of the key benefits of using Apache Tomcat to host them are:

  • Reliability: Because it’s open-source, Tomcat is constantly being tweaked and perfected by developers. More than a decade of these performance updates has made it the most reliable web container available.
  • Lightweight: Tomcat is an incredibly lightweight application, meaning it takes up less server memory and runs quickly.

The Life Cycle of a Java Servlet

Web containers like Apache Tomcat work together to respond to a web browser’s request to view dynamic Java content like your application. The basic life cycle of a Java servlet is as follows:

  1. A request is sent from the client web browser and received by the Java web container.
  2. The server loads the proper servlet class.
  3. The servlet instance is created by the web container.
  4. The servlet is initialized by the web container using the init() method. Servlets only need to be initialized once.
  5. Once initialized, the service() method is invoked by the web container. The service() method is invoked each time the servlet is requested – if a servlet has already been loaded, instanced, and initialized, this becomes the new first step.
  6. When the servlet is no longer needed, it’s removed by the web container using the destroy() method.

So why does knowing any of this matter?

Understanding how these programs work is important when it comes to choosing the best servlet hosting provider. Knowing more about the technology behind your app can give you a clearer idea of the quality of different hosting services and save you from falling victim to scams and false promises.

How to Find Java Servlet Hosting For Your Java App

Now that you know how JSP hosting containers work, how do you find a good hosting service that supports Java servlet hosting? As you’ve just learned, Java hosting is a fairly complex process compared to traditional hosting, so finding a Java hosting provider that meets even the basic requirements can be tricky.

Luckily, you don’t have to look very far to find fast and reliable servlet hosting plans.

JavaPipe’s managed Java hosting plans support the programming language, servlets, Apache Tomcat versions 6, 7, 8 and 9, MySQL, and more.

Everything that you need to host your application is already installed on our servers so that you don’t have to worry about installing Apache Tomcat or Java servlets yourself.

Instead, all you have to focus on is building your JSP application, attracting users, and growing your business.

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