Q1. HTTP is a stateless protocol, so how do you maintain state? How do you store user data between requests? A1. This is a commonly asked interview question. The “http protocol is a stateless request/response based protocol”. You can retain the state information between different page requests as follows: HTTP...
15 Spring boot interview questions & answers with tutorials for easy setup of new Spring applications. Spring boot helps you get started quickly with its auto-configuration ability, and Spring Cloud Microservices interview questions & answers extends Spring Boot with cloud & … Read more ›...
As an enterprise Java developer, you will be spending more time integrating systems via Java web services & messaging. Java Web Services interview questions are must know for the Java developers. Q1. What are the different styles of Web Services used for application integration? … Read more ›...
60+ microservices interview questions & answers covering Spring boot, Spring cloud, and microservices design patterns. If you are an enterprise Java developer, then most likely you will be developing Microservices using Spring boot. Let’s start with the beginner microservices interview questions & then get to much needed 20+ microservices design...
Q1. What is RESTful Web service, and why is it favored over SOAP Web service? A1. REST stands for REpresentational State Transfer (REST), which is a stateless software architecture that reads webpages containing XML, JSON, Plain text, etc. REST is a simpler alternative to Simple Object Access Protocol (SOAP) and...
Q1. What happens when you open up a browser and type a URL to request a Web page or RESTFul web service data? A1. HTTP is a stateless protocol on top of TCP (Transmission Control Protocol). 1) When the IP address is obtained, … Read more ›...
Step 1: pom.xml file with commons-dbcp2 for the connection pooling and abstraction layer for the datasource.
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.mytutorial</groupId> <artifactId>simple-persistence</artifactId> <packaging>jar</packaging> <version>1.0-SNAPSHOT</version> <name>simple-persistence</name> <url>http://maven.apache.org</url> <properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!-- MySQL Driver --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>6.0.6</version> </dependency> <!-- Connection Pool --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-dbcp2</artifactId> <version>2.1.1</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-shade-plugin</artifactId> <executions> <execution> <phase>package</phase> <goals> <goal>shade</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project> |
db.properties for connection details
Step 2: Create a new source folder “src/main/resources”.
Step 3: Define the MySQL database “learnjavadb” connection properties in a new file named “db.properties”
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Q1. What is a Servlet? Is a Servlet inherently multi-threaded? A1. A Servlet is a Java class that runs within a web container in an application server, servicing multiple client requests concurrently forwarded through the server and the web container. The web browser establishes a socket connection to the host...
Q. What are the high level steps in developing a RESTful web service in Java?
A. You can see the complete tutorial in the tutorials section. This post is to quickly explain the major steps at the job interview. Knowing all the basics is of no use if you can’t write a web service.
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This extends Kubernetes (i.e. Minikube) – deploy a node js service.
Docker containers & Kubernetes for deploying Spring Boot microservices. As mentioned earlier in Kubernetes, Docker & Microservices interview Questions & Answers.
Docker gives you application isolation, and solves the dependency hell issues.
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JAXB interview Questions & Answers Links: 6 Java RESTful Web services Interview | 11 SOAP Web service interview | Java Web Services interview Questions & Answers Q1. What does JAXB stand for? What is an XML Binding? A1. … Read more ›...
JSF or JavaScript based frameworks like angularjs, ember, etc are more popular than JSPs for web developemnt. Q1. What is a JSP? How does it differ from a Servlet? A1. JSP stands for Java Server Pages. JSP technology extends the Servlet technology, which means anything you can do with a...
The high level pattern for the RESTful URI is http(s)://myserver.com:8080/app-name/{version-no}/{domain}/{rest-reource-convetion} For example: http(s)://myserver.com:8080/accounting-services/1.0/forecasting/accounts to list … Read more ›...
I have a good news, I got job offer. I like to share with you from my bottom of my heart feeling thankful to you.