In this Spring CRUD Example, we will build a Simple Spring Application and perform CRUD operations using Spring JdbcTemplate. We will create a simple Employee management application which has abilities to create a new employee, update the existing employee, get a particular employee/ all employee and finally delete the existing employee. … [Read more...]
Spring JdbcTemplate Example + JdbcDaoSupport
Spring framework provides excellent support to JDBC, it provides a super powerful utility class called "JdbcTemplate" which helps us avoid boiler-plate code from our database operations such as Creating Connection, Statement, Closing the Resultset and Connection, Exception handling, Transaction management etc. In this Spring JdbcTemplate Example, let's understand how … [Read more...]
Spring Boot – How to Change Embedded Tomcat default port
By default, the embedded tomcat server of Spring Boot application will be starting at port 8080. In this article, we will learn how to change embedded Tomcat default port using one of the following approaches Using application.properties or application.yml Implementing EmbeddedServletContainerCustomizer interface Using SpringApplication class Change port directly … [Read more...]
Spring Boot CommandLineRunner and ApplicationRunner
Whenever you need, to perform a specific task once after all the Spring Beans are created and the Application Context has been created then you can implement ApplicationRunner or CommandLineRunner interface. Both the interfaces works the same way and has a single run() method. A similar implementation is already there in Spring and many people would have known it … [Read more...]
How to Create Deployable WAR | Spring Boot | SpringBootServletInitializer
Previously we have learnt how to build a Spring Boot Hello World application using Maven and through Eclipse. In this Spring Boot example, we will be building the same hello world application with a slight difference instead of building an executable JAR we will be building a WAR file. We will be extending SpringBootServletInitializer in order to create deployable WAR file. … [Read more...]
Spring Security Annotation Configuration Example – HelloWorld
Previously we have seen how to implement Spring Security in a Hello World program using XML configuration. In this Spring Security Annotation Configuration Example, we will be using the same example but instead of XML configuration, we will be configuring it through annotation. … [Read more...]
AngularJS Spring MVC integration
In this tutorial, we will learn how to integrate AngularJS with Spring MVC application. We will be building a REST Web service using Spring MVC Controller (@RESTController), here AngularJS will request the data through the HTTP protocol and the RESTFul Web Service will return the JSON format response. Let's now dig into the code. … [Read more...]
Spring Security Custom Login Form Example – XML Configuration
In the previous Spring Security Hello World Example, we have built a simple Spring MVC Hello World application and took the advantage of Spring Security by using the default login form provided. In this tutorial, we will go a bit further and build our own login for our Spring Security Custom Login Form application. … [Read more...]
Spring Security Tutorial Hello World Example – Using XML Configuration
In this Spring Security Tutorial, we will build a Simple Spring MVC Hello World application integrated with Spring Security features. In this application, we will be dealing with two major security areas Authentication and Authorization. Authentication - It is nothing but validating whether the user is a valid user or not. Authorization - Deciding whether the … [Read more...]
ClassNotFoundException: org.springframework.web.context.ContextLoaderListener
When you happen to work with a Spring MVC Framework based Web application. Then java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener is a common problem which will be occurring during deployment. Spring MVC throws this exception when it is not able to find the "org.springframework.web.context.ContextLoaderListener" class which loads up the all … [Read more...]
Spring PropertyPlaceholderConfigurer Example – Reading a Property File
It’s never a good practice to hard code and combine any environment related details such a username, password or file path etc. along with spring bean configuration. Usually in Java we will be having those details written in a separate property file and it will be read during the execution, the same can be followed in the spring as well using … [Read more...]
Spring Bean Creation – Static Factory Method & Instance Factory Method
In Spring we can create bean using Spring FactoryBean, FactoryBean is an interface and we need to give implementations for the methods in it. If you don't want to go by that methodology but still want Java Factory Pattern to be implemented then we can go for Static Factory Method and Instance Factory Method. The client who requests for an object can simply make a call to … [Read more...]
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