MOST POPULAR APPLICATION SERVER IN JAVA

Names of application server in java, when you can use shared server and when to use dedicated server, how to select the right application server etc is given in this topic.

First of all, application server sits in between web server and database server. Further , there are many application server examples. application server WebSphere is one such server. Most of the application servers in java given below.

Now a server is a software running on a machine to handle requests from the clients. Also, this runs 24X7 as it connected to internet. So, the website stored on the server.

Moreover, we have web server, application server and database server installed on same machine or different machines depending upon the load and volume of work, No. of visitors etc. .

First of all when you have a website that handles 1000 visitors request on a daily basis you can have shared hosting and all these servers are installed and run on the same machine./computer.

Further if we have big database and more than one lakh visitors daily then it is better to hoist on dedicated server with VPN for security reasons. Then we will have three servers installed on three different machines but the functions remain the same.

What does the webserver , application server and database server handle?

First of all Webserver handles HTTP requests and hands out HTML pages. Further, Webserver runs on Apache, Nginx, IIS, Microsoft etc. Also, Webserver can map the parts of URL (Uniform Resource Allocator) into

an external and internal program

A local file resource

So,If there was no webserver then requesting a name file and age file will be like this

https:// file://c://documents%nameand%age/Home.index.html

Moreover, in case of bank our login request is the web server request. Also, It resides on port 80/443 and handles HTTP request . However, If page not found the error message 404 – page not found flashes.

Now application server is go between web server and database server. So,an application server can often be described as a software framework that resides on the middle tier of Service centric architecture. However, database is never available on the internet for security reasons. Most noteworthy is that it is the dynamic application server which fetches the database for the client using some protocols . Now these protocols depend upon application business logic. In banks to serve their purpose they use Application server Flex cube. Application server will always sit on DMZ.

However , Database server uses protocols ODBC ,JDBC etc. Also, it runs on MYSQL, Oracle, Postgre SQL etc

Need for application server

Application server integrates database with existing system

Helps to solve complex transaction

E Commerce

website support

web integrated collaboration

Load balancing

Messaging

clustering

Persistence

redundancy high performance

What will happen if there is no application server

First of all, Webserver can only handle HTTP request so the webpage will be displayed and pricing information will be handed over to server side program .Now, suppose the query is about price of certain product the pricing information will be displayed but comparisons and other logical analysis will not be available. So, application server uses its business logic application to give useful information.

How to choose right application servers

  1. Reliability and performance are the Key factors
  2. Reviews of users will guide your purchase
  3. Use of free VPN or paid VPN is must to protect from third party

Examples of Application server in Java

JBoss is a open source application server in Java server for JBoss community

Glassfish Provided by Sun Microsystems and now acquired by Oracle

WebLogic : Provided by Oracle . it is more secured

WebSphere : provided by IBM

WildFly

Apache Tomcat

Apache Tom EE

JoNAS

blazix

Now for WebSphere application software details visit

outbound links

https://pixabay.com/photos/person-woman-asian-female-801823/

https://www.quora.com/What-is-the-difference-between-a-web-server-an-application-server-and-a-database-server

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How webserver and application server works

First of all, I am giving the need for website in my earlier post. Further, I am also mentioning the types of websites depending on purpose in great detail .

what is a server ?

A server is a computer program providing services to computer program and users either in the same computer or other computer.

How does server differ from desktop?

First of all, a desktop computer and a server differs in a variety of features and hardware.

Further more, a desktop computer system runs a user friendly operating system and desktop application to facilitate desktop oriented tasks. However,a Server manages all network resources. Also servers are dedicated to particular task. So,they are engineered in such a way that it manages, stores, sends ,processes voluminous data 24 hours a day. Thus, a server is more reliable.

What are the two types of server

Thus the two types of server are web server and application server

what is a web server ? what is a application server ?

Firstly, the website is stored in a server. Now, web server provides static content in response to HTTP requests. Also, application server provides dynamic content which is included in the website.

Are webserver and application server different?

Though, webserver and application server are different in their working but they both are essential for website to function effectively.

How webserver and application server works

How does web server work?

Firstly, a webserver responds to HTTP request from the user and sends back static HTML page, video files, image files or other type of files included in the website.

further if the webserver does not find the requested web page the web server will send the HTTP response Error404 not found.

It may also redirect or delegate the dynamic response generation to some other programs such as CGI Scripts, JSP( Java Server Page) Servelets, ASP(Active Server Page)Server Side Java Scripts or some other server side technology.

The webserver only provides an environment in which server side program can execute and pass back the generated responses.

It also employs various methods such as load balancing, caching and clustering for fault tolerance and scalability erroneously assigned as application server features.

For eg. ad server used specifically for publishing advertisements.

How does application server work?

An application server serves business logic to application programs through number of protocols.

Application server power the interactive parts of a website and those parts appearing differently depending on the context of the request.

Application server fulfils its basic role of hosting applications. It helps web developers build new application.

Developers use application server environment to develop new application. .

Some application server provide security of web applications. It also provides diagnostic capabilities to identify and troubleshoot problems..

The application server retrieves information from database. So correctly organised, categorized, tagged,and updated database helps application server draw information from proper location.

It is necessary to update security of application server to protect from security flaws. This is mainly responsible for cyber security breaches.

Example of application server are real time availability and pricing information in a store.

conclusion

How application server and web server work shows that they work together. They are not each other’s substitute . They give users good browsing experience.

I have given you enough details about web server and application server. . These details I am giving you in depth to understand web hosting and choose proper hosting provider.

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First of all, can you share this post with your friends and help someone, sparing a minute or two from your busy schedule. Also,this feed back will help me continue to write the kind of articles which will help you in some way.

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