Spring Boot Mongodb Nested Object Example

This page provides examples of query operations on embedded/nested documents using the com. Please note the depth is calculated based on the level of child properties of an JSON object. setName method will be invoked on the object with the name. – Html5 DateTime + Ajax Jquery + SpringBoot @JsonFormat example. Technologies Used: Spring Boot 2. Spring is an application framework built on top. properties or application. Nameable interface, then the the Nameable. Spring Boot Crud Application Tutorial with MongoDB Welcome to this quick tutorial on creating a spring boot crud application with MongoDB database. Author Piotr Mińkowski Posted on June 22, 2018 June 22, 2018 Categories other, spring boot Tags bitcoin, blockchain, cryptocurrency, ethereum, security, spring boot, webj 10 thoughts on “Introduction to Blockchain with Java using Ethereum, web3j and Spring Boot”. This post sample consists on a project that uses spring-boot with spring-data-mongo repository, Fongo(an in-memory mongodb representation) and NoSqlUnit - a helper library for tests. NestedIOException. In this tutorial, you'll learn how to use Spring Boot, Spring WebFlux, and Spring Data to create a reactive web service that talks to a NoSQL database backend (MongoDB, in this case). Python Object Class example program code : Like Java and C++, Python is also based on OOPs Concept, i. In this post, we will focus on learning a use case where it makes sense. This example shows a domain class using both JPA and Spring Data MongoDB annotations. This post explains how to query and fetch embedded documents from within an array field in a MongoDB collection, using the Aggregation Framework. In order to have a reasonable example, I have created three new. Spring Boot 2 + MongoDB + Filtering Service. Contains all basic CRUD operations. Spring-Boot Tutorial with Examples Spring Boot makes it easy to create stand-alone, production-grade Spring based Applications that you can "just run". Converting JSON to/from Java Objects using JACKSON API Created on: June 27, 2015 | Last updated on: September 30, 2017 websystiqueadmin This post explains Jackson data-binding , which is a common approach when dealing with JSON using Jackson API in your Java projects. 3, which is the one we are using, sets 4. Spring MongoDB is a sub-project of Spring Data. In this tutorial, we will learn how to develop a CRUD (Create, Read, Update, Delete) Web Application using Angular 7 as a front-end and Spring boot 2 restful API as a backend. Spring Boot and OAuth2. MongoDB tutorial provides basic and advanced concepts of SQL. Tip The driver provides com. Yatechi Solutions. So let us get started up by defining the dependencies in our POM file. The default value is 12. CrudRepository is a Spring data interface and to use it we need to create our interface by extending CrudRepository. js Hello World application, we will extend the same Hello World application to show the Vue. Deploying Spring Boot-based microservices with Docker – part 3 Posted on November 16, 2014 by ceracm In part 1 and part 2 of this series, we looked at the benefits of the microservice architecture and showed how Spring Boot simplifies the development of microservices. The database engine can use a predefined index, which maps documents fields and can tell the engine which documents are compatible with this query statement, hence improves performance. IOException April 7, 2019 · by Yogesh Prajapati · in Spring Boot · Leave a response Guys,. With Spring Boot and MongoDB, we did not even have to configure an OR-mapping. Also, just creating the domain object won't do. CRUD (Create, Read, Update and Delete) application is the most important application for creating any project. In an enterprise application peoples have creating separate files for each environment like Development, Staging and Production to define the properties for respective environment. Spring API for MongoDB was changing so fast and was not stable enough. I had gone through some your blogs and I understood that my objective of inserting a pdf in gridFS method is well suitable in Spring framework. This blog entry will describe how you can use query methods for creating custom queries with Spring Data JPA. Spring is one of the most prominent frameworks used across Java enterprise projects. Annotation can be used on primitives, complex objects, collections, etc - filter value is structureless. MongoDB is a very popular NoSQL solution and the camel-mongodb component integrates Camel with MongoDB allowing you to interact with MongoDB collections both as a producer (performing operations on the collection) and as a consumer (consuming documents from a MongoDB collection). This is done through a Repository interface. • Supported the Merge or Update operation on the payload in. In last case you can understand both native Mongo API and Spring Data API. Spring 4 MVC REST Controller Service Example (JSON CRUD Tutorial) - A step by step tutorial to understand Spring 4 MVC REST API and to create RESTful service using Spring 4. Also, just creating the domain object won't do. From many years Java developers relies on properties file or xml files for specifying application configurations. Spring Boot’s Spring Data JPA provides an easy way to do this. Setting up a project with Spring Data and MongoDB July 2, 2012 codesilo Leave a comment Go to comments From springsource : "The goal of the Spring Data Document (or DATADOC) framework is to provide an extension to the Spring programming model that supports writing applications that use Document databases". database=rest_tutorial This object is then. If a collection does not exist, MongoDB creates the collection when you first store data for that collection. Annotation can be used on primitives, complex objects, collections, etc - filter value is structureless. Open Projection, Close Projection, Dynamic Projection examples. There is no excuse for not using Value Objects anymore! Spring Boot. MongoDB JSON based query method example using spring data. For example, Spring Boot 1. So, let's discuss MongoDB Data Types. getCollection("test"); MongoCollection instances are immutable. By default, Spring Data MongoDB stores the fully qualified class name in each document like this: { _class : "com. The first parameter of the find() method is a query object. Then configure the required spring. Document is same as a row in the table of relational database. Spring MVC CRUD Example. If Statement in java In this post, We will discuss about If statement, If Else, Multiple if-else, nested Statement or condition in java If Statement in java In this post, We will discuss about If statement, If Else, Multiple if-else, nested Statement or condition in java with examples. All of these is based on Java 8. Now that we have a model that identifies the data structure stored in the database to Spring Boot, we can create the connector between the model and MongoDB. It enables the database engine to efficiently resolve queries which make it one of the best key features of MongoDB. View: Spring MVC form tags are used to render the equivalent HTML form fields, and most importantly, bind the object in the model with the form. The rest of the class contains the basic constructors, getters, and setters for the Pets object. Spring Boot + Spring Data MongoDB example By mkyong | March 1, 2017 | Viewed : 216,336 | +1,585 pv/w In this article, we will show you how to create a Spring Boot + Spring Data MongoDB application, using Gradle build tool. If you want to get only one Talk that has a certain title you can use a find with a projection :. The spring-boot-starter-test is a starter for testing Spring Boot applications with libraries including JUnit, Hamcrest and Mockito. Our Spring Boot starters simplify integrating JaVers with your application. This article was a quick but comprehensive introduction to using MongoDB with Spring Data, both via the MongoTemplate API as well as making use of MongoRepository. It's interesting to take a step back and see just how many powerful ways we have to query MongoDB - varying from limited control all the way to full control with raw queries. With Spring MVC Framework, its so much easy to map JSON String to Java Objects or convert Java Objects in to JSON string. Filters helper methods to facilitate the creation of filter documents. find method in the MongoDB Java Synchronous Driver. js Hello World application, we will extend the same Hello World application to show the Vue. If we create multiple objects of ‘MyStatic‘ class, always instance variables will be given separate space for storage, but static variable is common to all objects of MyStatic class, no separate space will be given to each object. This uses the positional filtered $[] syntax in order to match the specific elements and apply different conditions through arrayFilters in the update statement:. All nested objects are stored as nested objects in the document and *not* as DBRefs. In our example, we will be using Spring boot 2. This is all you need to do to start using Embedded MongoDB in a Spring Boot. What to read next Part III. x driver codecs which means objects are no longer converted first to MongoDB Document objects and then to Groovy objects, instead the driver reads Groovy objects directly from the JSON stream at the driver level, which is far more efficient, however may not exhibit exactly the same behaviour as the previous version. – Jquery Ajax POST-GET Nested Objects to SpringBoot server. The first parameter of the find() method is a query object. For example, we’ll see how to use the below given simple data object. You can find the final code developed throughout the article in this GitHub repository. · The Spring Framework is an open source application framework and inversion of…. When it comes to JSON APIs is it good practice to flatten out responses and avoid nested JSON objects? As an example lets say we have an API similar to IMDb but for video games. Spring Data JPA Projections. Validating nested objects in spring MVC. To select data from a table in MongoDB, we can also use the find() method. The preceding image shows the Initializr with Maven chosen as the build tool. The database engine can use a predefined index, which maps documents fields and can tell the engine which documents are compatible with this query statement, hence improves performance. Annotated field will proceed for filters gathering. However our project had a large amount of complex Flyway SQL Database Migration scripts that were written by our DBA for use on the dev/staging/prod MariaDB database. 3 Release version, it comes with hibernate 5. For example, using the following file you can pass any value for "message" variable and you can print different values of message without impacting HelloWorld. Spring is one of the most prominent frameworks used across Java enterprise projects. Jul 31, 2018: Updated to use Spring Boot 2. MongoDB is a document-based NoSQL database, providing high performance and high availability. With JaVers you can forget about the troublesome data versioning. The Model-View-Controller design pattern helps in separating the business logic, presentation logic and navigation logic. Spring API for MongoDB was changing so fast and was not stable enough. For example, you probably don't want to allow unauthenticated users to consume your API, right? One easy way to fix this is to integrate your app with Auth0. Spring Boot and Spring Data make it even easier to get a simple application up and running. host=localhost spring. A Spring Boot web application can be built to a stand-alone JAR. Build the Spring Boot app with the authentication updates:. The Spring DataBinder is not only useful to bind request parameters, you can also use the DataBinder on other parameters, like command line arguments, JSON objects coming from an Ajax request and query results from a database. There are two starters compatible with Spring Data and common persistence stacks: JaVers Spring Boot starter for MongoDB, compatible with Spring Boot starter for Spring Data MongoDB. By default a field with a name of 'id' or '_id' will be used as the ID field of the document. You can also use Gradle. We can take this even further and add more restrictions, like string length. Spring 4 MVC REST provides powerful APIs to built complete RESTful services. Previously, we have shown you how to securing Spring Boot, MVC and MongoDB web application. This tutorial explains how to implement RESTful web service using Spring Boot and MongoDB. Expressive Object Model. NestedIOException. Maybe you want to take a look at Data aggregation with Spring Data MongoDB and Spring Boot if you need more detail about how to create the project and configure the application. Jul 31, 2018: Updated to use Spring Boot 2. The different CRUD operations such as Create, Read, Update and Delete will be first implemented through MongoRepository and. This tutorial will walk you through the steps of mapping a JPA and Hibernate One To One bidirectional entity relationships example with Spring Boot, Spring Data JPA, Lombok, MySQL and Docker What you will need JDK 8+ or OpenJDK 8+ Maven 3+ MySQL Server 5+ or Docker CE 18+ Init. 0 and above uses a new engine based on MongoDB 3. All Possible Examples. Our final Spring Data MongoDB example project will look like below image. MongoDB tutorial provides basic and advanced concepts of SQL. Spring API for MongoDB was changing so fast and was not stable enough. If you are new to these technologies, you are advised to get familiar with these concepts and then come back to this MongoDB tutorial. Find Documents by ID and other Attribute Values. Since there are no specific tutorial for Cassandra (as yet) I am trying to replicate the MongoDb description with Cassandra. We will create a Spring boot hibernate application which will have JSP as user interface. The source for the ONDB example can be found here. sql needs to be imported into the database. Introduction. The database itself is feature rich offering features such as sharding, in place updates and map reduce. This tutorials uses already implemented REST services using Node. Spring provides us with several ways to read our application’s configuration files: properties files. Spring Boot: Excel, Csv and Pdf view example. The below code example can be used to insert multiple documents at a time. This line instantiates a new object instance of type com. RELEASE with Spring Boot project created using Spring Initializr Web. The rest of the class contains the basic constructors, getters, and setters for the Pets object. The query that you built seems ok, but it won't return Talk objects, but instead will return Speaker objects that have at least one 'Stuff' talk. Let’s boot up for Christmas: Spring Boot is an opinionated framework that simplifies the development of Spring applications. The following example shows how this can be done, Step 1) Create a JavaScript variable called myEmployee to hold the array of. For example, using the following file you can pass any value for "message" variable and you can print different values of message without impacting HelloWorld. Spring Data JPA Projections. Spring Boot With MongoDB CRUD Example | Java Techie - Duration: 20:56. x driver codecs which means objects are no longer converted first to MongoDB Document objects and then to Groovy objects, instead the driver reads Groovy objects directly from the JSON stream at the driver level, which is far more efficient, however may not exhibit exactly the same behaviour as the previous version. boot » spring-boot-starter-data-mongodb Spring Boot Data MongoDB Starter Starter for using MongoDB document-oriented database and Spring Data MongoDB. The MongoDB BSON implementation is lightweight, fast and highly traversable. Spring Boot + Spring Data MongoDB example By mkyong | March 1, 2017 | Viewed : 216,336 | +1,585 pv/w In this article, we will show you how to create a Spring Boot + Spring Data MongoDB application, using Gradle build tool. Transcript Okay, I'd like do a quick code review of my Spring Boot Mongo DB example application. 0 M1 and Spring Security 5. After making a GET request to a REST service the natural progression is to POST information back to the server. Spring Boot's Spring Data JPA provides an easy way to do this. This post explains how to query and fetch embedded documents from within an array field in a MongoDB collection, using the Aggregation Framework. Contains all basic CRUD operations. A step-by-step tutorial to create leaner and faster applications using MongoDB Who This Book Is For This book is for Java developers and architects that want to learn how to develop Java applications using the most popular NoSQL solution and the use cases of it. Model: basically a POJO (Plain Old Java Object) class is created to bind form fields with properties of the object. You can pass any number of key, value pairs in find clause. Here we will see a post on Spring Boot MongoDB CRUD example, where CRUD means Create, Read, Update, and Delete operations. NestedIOException. Which is best Spring MVC or JSF? Spring MVC Web and the Hibernate frameworks. We have written a small Spring-Boot application utilizing Spring-Data-MongoDB to read and write documents in MongoDB. It is fascinating to see how much simpler it makes working with the database. This is done through a Repository interface. We have developed. We use spring provided DriverManagerDataSource to create and configure the DataSource. Example-Let’s store some values in variable arrays, local1, local2, local3. Spring Boot Redis Data Example: A simple example to understand Spring boot data redis. All Possible Examples. Below is the preview image of the application to be performed by us:. This article was a quick but comprehensive introduction to using MongoDB with Spring Data, both via the MongoTemplate API as well as making use of MongoRepository. Mongodb Schema Design for Real-World Examples. 4, MongoDB 4. Use Spring Data and Spring Boot to leverage micro-services using MongoDB as storage; About : The NoSQL movement is growing in relevance, attracting more and more developers. The script of mal_tiny. For the above given example, equivalent where clause will be ' where by = 'tutorials point' AND title = 'MongoDB Overview' '. Spring boot: Spring boot is (Spring + Configuration) bundle which helps you to develop application faster. In this tutorial, you'll learn how to use Spring Boot, Spring WebFlux, and Spring Data to create a reactive web service that talks to a NoSQL database backend (MongoDB, in this case). Python Object Class example program code : Like Java and C++, Python is also based on OOPs Concept, i. For example, you have a Collection T and you want to create a Class with 4 functions such as querying, adding, editing, deleting on this Collection. Jul 31, 2018: Updated to use Spring Boot 2. This post is in continuation of our Update MongoDB Java Example series. Here I will make a Spring Boot REST Application which provides REST APIs for make booking, read booking, update booking and delete booking. In spring MVC, we can develop a simple CRUD application. your username. For all the tabs there is separate Header component inside which the Title i have hard coded. The below code example can be used to insert multiple documents at a time. It uses jackson-datatype-jsr310 from com. getCouchbaseBucket() you will get access to the Bucket object, which potentially is the one you are using right now. The rest of the class contains the basic constructors, getters, and setters for the Pets object. 3, which is the one we are using, sets 4. This uses the positional filtered $[] syntax in order to match the specific elements and apply different conditions through arrayFilters in the update statement:. Dependency injection is the mechanism for implementing IOC. In an enterprise application peoples have creating separate files for each environment like Development, Staging and Production to define the properties for respective environment. Let’s see how to integrate spring with MongoDB database. yml file (this will work with a. But you can use pretty much any other Java framework or vanilla Java code for this. The goal of Spring Boot is to provide a set of tools for quickly building Spring applications that are easy to configure, and that make it easy to create and run production-grade Spring-based applications. Maybe you want to take a look at Data aggregation with Spring Data MongoDB and Spring Boot if you need more detail about how to create the project and configure the application. spring data mongodb querying nested objects and nested objects performance. The rest of the class contains the basic constructors, getters, and setters for the Pets object. Previous Next Hello friends !!! In this tutorial we are going to discuss about using NoSQL database MongoDB with Spring Boot Application. database=example Repository & Controller. We have developed. Building upon my previous blog post on Spring Boot, I would now like to talk about building REST APIs with Spring Boot. Example Spring Boot Application using Mongo DB running in a Docker Container. Below is the preview image of the application to be performed by us:. If you want to expose MongoDB repositories with a hypermedia-based RESTful front end with little effort, read Accessing MongoDB Data with REST. By Yashwant Chavan, Views 151099, Last updated on 09-May-2019. To use MongoDB in a Spring Boot project, we need to add the Spring Data MongoDB starter dependency, spring-boot-starter-data-mongodb. Dependency. We'll go over the basics using both the MongoTemplate as well as MongoRepository using practical examples to illustrate each operation. This blog entry will describe how you can use query methods for creating custom queries with Spring Data JPA. For example how to construct embedded-embedded documents with @DBRef and other technics. For our example, we have added below in our application. Related posts: – JQuery Ajax Http Delete remove data from SpringBoot RestAPI. So As I spent a couple of hours searching solution on Internet, this post will give you a full example of a project getting data from a MongoDB instance to provide a simple webservice. Create a table. Notice that some of the fields have a max_length parameter set. We moved on with Morphia which is decent API. In this tutorial, we will learn to integrate MongoDB with a spring boot application and perform different CRUD operations through Spring Data MongoRepository as well as MongoTemplate with different examples and samples. In relational databases, the SQL JOIN clause allows you to combine rows from two or more tables using a common field between. Java Project Tutorial - Make Login and Register Form Step by Step Using NetBeans And MySQL Database - Duration: 3:43:32. Listing 1 shows a Spring data caching example. Now the base Document object can use that information to validate the data we provide it. html This is the tutorial on Spring Roo. Spring boot has made bootstrapping Java application incredibly simple. Spring Data JPA and Hibernate (as JPA implementation) will be used to implement the data access layer. Spring is a famous framework because it supports a lot of technologies for View layer. Spring Boot + Angular 8 CRUD Example. Like JSON, MongoDB's BSON implementation supports embedding objects and arrays within other objects and arrays - MongoDB can even 'reach inside' BSON objects to build indexes and match objects against query expressions on both top-level and nested BSON keys. Let the changes in your data be managed by JaVers. 4 added support for JSONB data type. Spring Boot Data JPA - Modifying update query - Refresh persistence context. Static Variables. Tip The driver provides com. Spring Boot is mostly used to create web applications but can also be used for command line applications. RELEASE as the Spring framework version. It provides an elegant solution to use MVC in Spring Framework with the help of DispatcherServlet. To use MongoDB in a Spring Boot project, we need to add the Spring Data MongoDB starter dependency, spring-boot-starter-data-mongodb. Author Piotr Mińkowski Posted on June 22, 2018 June 22, 2018 Categories other, spring boot Tags bitcoin, blockchain, cryptocurrency, ethereum, security, spring boot, webj 10 thoughts on “Introduction to Blockchain with Java using Ethereum, web3j and Spring Boot”. Step by step Spring Boot, Hibernate CRUD Web Application tutorial February 13, 2017 August 8, 2017 ranatigrina2002 Uncategorized java , jpa , spring , thymeleaf It's been a while I have not been able to write a new tutorial, even though I coded the application with the intention of posting it around New Year's; Its just been a crazy month. By default, Spring Data MongoDB stores the fully qualified class name in each document like this: { _class : "com. The $ operator can be used to project fields in documents nested deeply in an array. To mitigate such risks, LoopBack allows you to configure maxDepthOfQuery and maxDepthOfData in datasource/model settings. This is up on github. The relationship between an exam and a student has a property that is either. However, Spring data is much more productive. If I were to recommend any "documentation" outside the official guides provided by MongoDB and Spring I would recommend 'mkyong dot com' Also, just take this free course from MongoDB University if you want to learn more about MongoDB and Java -> M101J: MongoDB for Java Developers. Many techniques and examples are available to consume RESTFul web service, probably you would have tried many but using Spring boot RestTemplate is one of terribly easiest technique I have ever used to consume RESTFul web service. This page provides examples of query operations on an array of nested documents using the com. For example, a product catalog application might use a document database (such as MongoDB) to power browsing / searching for products along with a graph database (such as Neo4j) to provide real time personalized product recommendations. A step-by-step tutorial to create leaner and faster applications using MongoDB Who This Book Is For This book is for Java developers and architects that want to learn how to develop Java applications using the most popular NoSQL solution and the use cases of it. As part of this article, I am going to implement a simple spring boot data redis which will acc. It uses jackson-datatype-jsr310 from com. CREATE DATABASE IF NOT EXISTS `concretepage`; USE `concretepage`; CREATE TABLE IF NOT EXISTS `articles` ( `article_id` bigint(5) NOT NULL AUTO_INCREMENT, `title` varchar(200) NOT NULL, `category` varchar(100) NOT NULL, PRIMARY KEY (`article_id`) ). Validating nested objects in spring MVC. Each exam is connected to X students. MongoDB is a document-based NoSQL database, providing high performance and high availability. Spring Data is no longer able to tell the repositories apart which leads to undefined behavior. These multikey indexes support efficient queries against array fields. CRUD (Create, Read, Update and Delete) application is the most important application for creating any project. For the installation of dependent services, please refer to the deployment of MAL in Windows environment. Create a table. Document is same as a row in the table of relational database. Adding Repository to Spring Boot Project. Use Spring Data and Spring Boot to leverage micro-services using MongoDB as storage; About : The NoSQL movement is growing in relevance, attracting more and more developers. Spring 4 MongoDB Repository Example. target class of type alias, type handler class) from an application (or application server). This year I greeted Christmas in a different fashion: I was a part of the Java Advent Calendar. 4 added support for JSONB data type. Then configure the required spring. With MongoDB, we can structure related data by embedded documents. Now that we have some grasp on the theory, let’s jump to our example. A directory of GUIs, admin interfaces, and other tools for getting the most out of MongoDB, a popular open source document-oriented database. 3, which is the one we are using, sets 4. 5; Jedis; Java8; Maven; redis and Jedis specific dependencies: Below are the redis and Jedis maven dependencies. This service is a GET operation, which returns a class with Java Time objects. The different CRUD operations such as Create, Read, Update and Delete will be first implemented through MongoRepository and. setName method will be invoked on the object with the name. springframework. The database itself is feature rich offering features such as sharding, in place updates and map reduce. Spring Boot With MongoDB CRUD Example | Java Techie - Duration: 20:56. You can pass any number of key, value pairs in find clause. In this episode we will look at how to post json to spring controller and have it automatically convert JSON to arraylist, object or multiple objects. datatype in version 2. First of all, we need a Spring Boot project as an example: I now use Spring Boot version 1. Introduction to the Spring Security Tutorial: Form Login Update: I’ve added a new post which explains how to configure the Form Login using Java based configuration. This example shows how to map and persist an Ordering system object model to an Oracle NoSQL Database (ONDB) and a MongoDB NoSQL database. We moved on with Morphia which is decent API. Also, as you wouldn't want to publish insecure APIs, you will learn how to integrate Auth0 in your stack. We will learn to create various custom dynamic queries with multiple MongoDB operators to get started. MongoDB Atlas URL. @ControllerAdvice in the Spring reference docs. properties file, for this tutorial i am keeping my database name as example. Implement Spring Boot Application to retrieve data from h2 database and return it using Spring Boot Pagination Pagination using Spring Boot Simple Example In this post we expose a rest service which takes pageable parameters of page size and sort and return the data accordingly. Spring Boot provides selected groups of auto configured features and dependencies, which makes it. Create a table. CREATE DATABASE IF NOT EXISTS `concretepage`; USE `concretepage`; CREATE TABLE IF NOT EXISTS `articles` ( `article_id` bigint(5) NOT NULL AUTO_INCREMENT, `title` varchar(200) NOT NULL, `category` varchar(100) NOT NULL, PRIMARY KEY (`article_id`) ). This year I greeted Christmas in a different fashion: I was a part of the Java Advent Calendar. The code provides discovery and processing of fields annotated with @Filterable. Let's learn how ModelMapper can help us automate the mapping process of DTOs into entities on Spring Boot APIs. Query and Update documents nested multiple levels in an array The $ positional operator is used to project elements in an array based on a condition. Spring boot JPA With Mysql. Which is best Spring MVC or JSF? Spring MVC Web and the Hibernate frameworks. Nested Classes in Java In java, it is possible to define a class within another class, such classes are known as nested classes. Intro In the last post HowTo: Web Application with Spring-Boot, Kotlin and Mongodb, a short tutorial was provided to create a simple web application. Our MongoDB tutorial is designed for beginners and professionals. We have seen our previous example on Spring Boot Functional Reactive Programming but we did not use any persistent storage like MongoDB but here we are going to use MongoDB for performing CRUD operations. Examples of ApplicationArguments and @Value annotation to access application argument in Spring boot application. Spring Boot ResponseEntity tutorial shows how to use ResponseEntity in a Spring application. We have stored a string, Integer, float, and date data type in these array data type. JAVA Unit Test for Spring Boot with Mockito and EasyMock Here they are some ideas about testing using the different tools given by Spring Boot Test dependency. Spring 4 MVC REST provides powerful APIs to built complete RESTful services. Welcome to Spring Boot MongoDB example. Here we will see a post on Spring Boot MongoDB CRUD example, where CRUD means Create, Read, Update, and Delete operations. REST API is today's requirements for Mobile Apps, Web Application or Desktop Application that need to connect with Database.