Ankur Jain, Author at TechSupper

Spring MVC RESTful web service for file upload

This is one of the common requirement in all the project to upload a file. In the blog, we are gonna to show you the complete example how to create […]

Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode) -> [Help 1]

Some time you will be struggling with building the war using maven and will get the error: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in […]

Oracle Integration Cloud Service(ICS)

Oracle Integration Cloud Service (ICS) is Oracle’s integration Platform as a Service (PaaS). It provides a web-based interface to integrate Software as a Service (SaaS) and on-premise applications. It includes […]

Convert HTTP GET to POST in OSB REST service

This is very important and useful blog for all who has developed OSB REST API using HTTP GET verb and quickly want to convert into HTTP POST verb. That change […]

Secure RESTFul API using OAuth2 : Spring

This blog is the extension of my previous blog in which we have explained how to develop RESTFul APIs using Spring and Hibernate. This time is to implement OAuth 2 in […]

RESTFul API in Spring MVC : CRUD Operation

REST stands for Representational State Transfer. It’s an is an architectural style which can be used to design web services, that can be consumed from a variety of clients. The […]

Oracle Service Bus : Insert operation using Database Adapter

In the previous article, I have demonstrated how to perform select operation on the database using DB adapter. Now it’s time to perform insert operation on the database. It’s required […]

What is WSDL and difference between abstract and concrete WSDL

An official W3C standard, the Web Services Description Language (WSDL) is an XML language for describing web services. WSDL 1.1 (which is still in wide use) has five major elements–types, […]

How to increase heap size of the integrated server in JDeveloper 12c

Sometimes there may be a need to increase the heap size of the integrated weblogic server within JDeveloper. Obviously one can modify the setDomainEnv file in the domain’s bin directory. […]

Increasing the Java Heap size for a Admin Server & managed server in Weblogic

For better performance, we may need to increase the heap size for each Managed Server in our environment. As per performance tuning guidelines it is good practice to start Admin […]

Prototype Design Pattern

In the prototype pattern, a new object is created by cloning an existing object. The prototype pattern can be a useful way of creating copies of objects. One example of […]

Factory Method Pattern

A Factory Pattern or Factory Method Pattern says that just define an interface or abstract class for creating an object but let the subclasses decide which class to instantiate. In […]

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