Monday, April 8, 2019
On April 08, 2019 by Kamlesh 1 comment
What does spring framework do?
Spring framework lets you develop java j2ee applications in a rapid easy way,Simple right.
But the problem is setting up spring project manually as it involved lot of configurations.
What does spring boot do?
Spring boot aims to wrap all the spring components in a convenient way with no external xml configuration whatsoever. so basically spring boot lets you create...
On April 08, 2019 by Kamlesh 1 comment
Before diving into this implementation, I would suggest you to look at Spring Security Introduction first.
Let's Start
Most of the Web Applications uses custom login page with custom authentication,So lets go with it.
<html>
<body>
<form method="post" action="/login">
${sessionScope["SPRING_SECURITY_LAST_EXCEPTION"].message}
...
On April 08, 2019 by Kamlesh 1 comment
Spring Security provides comprehensive security services for J2EE-based enterprise software applications.
As you probably know two major areas of application security are "authentication" and "authorization" (or "access-control").
These are the two main areas that Spring Security targets.
"Authentication" is the process of establishing a principal is who they claim to be i.e authenticating the...
On April 08, 2019 by Kamlesh No comments
There might be a situation where you need to use your own method based on the requirement of a application.
Spring Boot JPA provides not only CRUD Operations,if you extend JpaRepository, a whole lot of implementation will be available
Some of them are shown below
findByLastnameAndFirstname
findByLastnameOrFirstname
findByStartDateBetween
findByAgeLessThan
findByAgeLessThanEqual
findByAgeGreaterThan
findByAgeGreaterThanEqual
findByStartDateAfter
findByStartDateBefore
findByAgeIsNull
findByAge(Is)NotNull
findByFirstnameLike
findByFirstnameNotLike
findByFirstnameStartingWith
Before...
On April 08, 2019 by Kamlesh No comments
Crud Operations using Spring Data JPA
import org.springframework.data.repository.CrudRepository;
public interface PersonDAO extends CrudRepository<Person, Long> {
}
Here PersonDAO Interface extends CrudRepository which contains crud operation methods and it accepts two generics,
Person - bean which you want to persist(Bean name)
Long - Type of primary key of the bean Person.(primary key...
On April 08, 2019 by Kamlesh No comments
Java Persistance API is a specification that provides an easy way of mapping from java object to relational mapping
Why JPA?
The java bean what we try to insert into database needs to be converted into single relational row that can fit into a table, This was all taken care by ORM's (Object - relational mapping), still the problem persists as the conversion had too much of boiler plate code,JDBC...
On April 08, 2019 by Kamlesh No comments
One of the main reason of Spring boot huge success is AutoConfiguration, Developers were really exhausted by this xml configuration.
In traditional spring mvc architecture if you wanted just to configure component scan and views, you had to write below shown snippet.
<context:component-scan base-package="com.example.spring.dao"></context:component-scan>
<context:component-scan base-package="com.example.spring.controllers"></context:component-scan>
<context:component-scan...
On April 08, 2019 by Kamlesh No comments
For traditional spring mvc architecture refer here, We were annotating spring mvc Controller Class with @Controller as shown below
@Controller
public class ViewsController {
@RequestMapping("/view1")
public String showView1(){
return "register";
}
In the above code as we know,when the request is made to ApplicationContext/view1 the resource register file will be returned.
In addition to...
On April 08, 2019 by Kamlesh No comments
Since most of the spring boot configurations are done by annotations,it is better if we go through what annotations are first.
Annotation : provides information about the program that is annotated with and it is not part of the program itself.
These annotations can be run time or compile time annotations
Compile Time Annotations
Compile time annotations are checked by the compiler at compile time.
public...
On April 08, 2019 by Kamlesh No comments
Setting up Spring Boot
Best way to set up a spring boot application is by Spring Intializer,Where you can add all the dependencies required ,download and import it in IDE.
OR
Create a new maven or gradle project and all the dependencies manually.
OR
Start a spring starter project from spring tools suite IDE
To start an application,just run Generated MainApplication.java file which starts...
On April 08, 2019 by Kamlesh No comments
Why spring boot was introduced when we had all the comforts of frameworks spring like mvc,hibernate etc
One main reason to remove all the configurations that would take plenty of time to just setup the framework.
Setting up the traditional Spring MVC framework includes
Adding Internal View Resolvers
Setting up Hibernate Session Factory
Connection to Database etc
Sample Code of Component...
On April 08, 2019 by Kamlesh No comments
Before staring with Spring Boot,You need to have basic knowledge of spring core to get better understanding of spring boot.
Lets start ...
What is spring boot?
Spring boot acts as a tool to build microservice.
What is microservice?
Microservice is a software architecture style that structures an application with collection of loosely coupled components.
Definition looks little complex?
Lets...
On April 08, 2019 by Kamlesh No comments
This tutorials contains full end to end discussion on spring boot for beginners.The topics are well constructed, source code is available for each topic which can be downloaded and deployed in any IDE.
This "Spring Boot Tutorials" Contains
Spring Boot Introduction
What is Spring Boot?
...
Subscribe to:
Posts (Atom)
Search
AdSense
Recent Posts
Popular Posts
-
WLST Script for checking the health status of Weblogic Domain (Admin/Managed node) After long time writing something about WLST WLST...
-
WLST Script for checking the status of JDBC Datasource in Weblogic WLST has some good features like we can monitor the weblogic dom...
-
WLST Script for Monitoring the JMS status of Weblogic Domain After long time writing something about WLST WLST has some good feature...
-
WLST Server Start The server of a WebLogic domain can be started using different techniques. The best setup depends on the technical re...
-
How to Deploy Application using WLST We can use WLST to quickly deploy an Application in a Weblogic Server. Requirement:- · The ...
-
How to create WebLogic Domain using Domain template: 1. Open an existing domain template (assuming WebLogic Server is installed at c:...
-
Basic concepts of WLST. What is WLST? It is a scripting tool offered by Weblogic. Any way WLST is not only for a sense of control,...
-
Hi All, writing something about OPMN utility with oracle instance and Weblogic. WebLogic Server – Weblogic is J2EE application ...
-
Hadoop Distributed Filesystem (HDFS) Built to support high throughput, streaming reads and writes of extremely large files. NAS ...
-
Before diving into this implementation, I would suggest you to look at Spring Security Introduction first. Let's Start Most of the We...
Recent Posts
Sample Text
Blog Archive
-
▼
2019
(13)
-
▼
April
(13)
- Spring MVC vs Spring Boot
- Spring Security With Spring Boot Example
- What is Spring Security?
- Adding your own implementation in JPA
- Crud Operations using Spring Data JPA
- What is Spring Boot JPA?
- YAML and Application.Properties Configuration in S...
- How Controller works in Spring Boot?
- What is Annotation?
- Setting up Spring Boot
- Why Spring Boot?
- What is Spring Boot?
- Spring Boot Tutorials
-
▼
April
(13)
Total Pageviews
62220
Find Us On Facebook
Powered by Blogger.