Spring Boot Integrated MongoDB

As for the MongoDB web has a lot of relevant information, so there is not too much to introduce here, we are here mainly to introduce how to use MongoDB and spring boot combination. This section outlines:

(1) Preparatory work;

(2) Create a new MAVEN Java project;

(3) to introduce relevant dependence;

(4) write the test code;

(5) configuration file;

(6) using mongotemplate to operate;

Let's take a look at how each of these steps work.

(1) preparatory work;

Now that you need to use MongoDB, it's obvious that you need to install MongoDB services. This network has a lot of relevant information, to operate on its own.

After the download installs, the MongoDB service is started up for later operation.

(2) Create a new Maven Java project;

Here we create a new Spring-boot-mongodb project.

(3) to introduce relevant dependence;

The introduction of dependency, where the most important is the dependency of MongoDB, other dependencies are basic, see the following Pom.xml file:

<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/xsd/maven-4.0.0.xsd" >

<modelVersion>4.0.0</modelVersion>

<groupId>com.kfit</groupId>

<artifactId>spring-boot-mongodb</artifactId>

<version>0.0.1-SNAPSHOT</version>

<packaging>jar</packaging>

<name>spring-boot-mongodb</name>

<url>http://maven.apache.org</url>

<properties>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

<!--JDK version number, Angel use 1.8 here, you can modify the JDK version number for your local configuration.

<java.version>1.8</java.version>

</properties>

<!--

Spring Boot parent Node dependency,

After introducing this, the relevant introduction does not need to add the version configuration,

Spring boot will automatically select the most appropriate version to add.

-

<parent>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>1.3.3.RELEASE</version>

</parent>

<dependencies>

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

</dependency>

<!--Spring Boot Web support: Mvc,aop ...-

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-web</artifactId>

</dependency>

<!--add MongoDB Support--

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-data-mongodb</artifactId>

</dependency>

</dependencies>

</project>

(4) write the test code;

Here we need to write a simple example to test, we need to create a Demoinfo entity class, we need to create an operation MongoDB repository class, and another is a control class Democontroller. See the following code specifically:

The entity class code DemoInfo:com.kfit.demo.DemoInfo, the specific code is as follows:

Package Com.kfit.demo;

import org.springframework.data.annotation.Id;

/**

* Entity class.

* @author Angel--Guardian Angel

* @version v.0.1

* @date August 18, 2016 3:15:39

*/

Public class Demoinfo {

The id attribute is for MongoDB, decorated with @id annotations

@Id

Private String ID;

Private String name;

Privateintage;

Public String GetName () {

returnname;

}

Public void setName (String name) {

this. Name = name;

}

public int getage () {

return age;

}

Public void setage (int.) {

this. Age = age;

}

@Override

Public String toString () {

return "Demoinfo [id=" + ID + ", name=" + name + ", age=" + Age + "]";