Summary of the use of SpringBoot project POM files

In Java development,MavenIt is a very popular project management and construction tool. It manages project dependencies, plug-ins and build configurations through POM files (Project Object Model). This article explains the role of each dependency in detail to help you understand how to use these dependencies to build a complete Spring Boot application.

POM file infrastructure

First, let's look at the infrastructure of the project POM file:

<modelVersion>4.0.0</modelVersion>
<parent>
    <groupId></groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>3.3.4</version>
    <relativePath/>
</parent>

parent element

parentThe element references a basic configuration provided by Spring Boot, which simplifies the developer's dependency management.spring-boot-starter-parentProvides default plug-in configuration and dependency version management to help reduce duplicate configurations in the project and ensure compatibility of all dependency versions.

groupId: Spring Boot is a framework that helps developers quickly build microservice applications based on the Spring framework.
artifactId: spring-boot-starter-parentThis is the parent POM of Spring Boot, providing default configuration and dependency version management.
version: 3.3.4The version number indicates the specific version of Spring Boot we are using, here we are using version 3.3.4.

Project basic information

<groupId></groupId>
<artifactId>NailPartyWeb</artifactId>
<version>0.0.1-SNAPSHOT</version>

These fields define basic information for the Maven project:

groupId: The organizational identifier of the project, usually in the company's domain name reversal form. Here is。
artifactId: The unique identifier of the project, usually the project name. Here isNailPartyWeb。
version: The version number of the project.0.0.1-SNAPSHOTIndicates that this is a snapshot version under development.

Project dependency details

<dependencies>
    <dependency>
        <groupId></groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId></groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>3.0.3</version>
    </dependency>
    <dependency>
        <groupId></groupId>
        <artifactId>mysql-connector-j</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId></groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId></groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId></groupId>
        <artifactId>mybatis-spring-boot-starter-test</artifactId>
        <version>3.0.3</version>
        <scope>test</scope>
    </dependency>
</dependencies>

1. spring-boot-starter-web

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

effect:

Spring Boot Web StarterProvides the infrastructure required to develop web applications. It includes core dependencies for building RESTful web services, e.g.Spring MVC, embedded Tomcat server and Jackson serialization/deserialization tools.

Key knowledge points:

Spring MVC: Used to build web applications based on MVC (Model-View-Controller) architecture.
Tomcat: Spring Boot uses an embedded Tomcat server by default, allowing you to easily start web applications.
Jackson: A Java library for converting Java objects to JSON, or converting JSON to Java objects.

2. mybatis-spring-boot-starter

&lt;dependency&gt;
    &lt;groupId&gt;&lt;/groupId&gt;
    &lt;artifactId&gt;mybatis-spring-boot-starter&lt;/artifactId&gt;
    &lt;version&gt;3.0.3&lt;/version&gt;
&lt;/dependency&gt;

effect:

MyBatis Spring Boot StarterProvides integrated support for MyBatis and Spring Boot. MyBatis is a persistence layer framework that helps developers simplify interaction with databases. This dependency automatically configures MyBatis and provides SQL mapping capabilities.

Key knowledge points:

MyBatis:MyBatis is a data persistence framework that supports custom SQL, stored procedures, and advanced mapping.
Spring Boot integrates with MyBatis: Simplifies the configuration of MyBatis and provides a more intuitive way to interact with the database.

3. mysql-connector-j

<dependency>
    <groupId></groupId>
    <artifactId>mysql-connector-j</artifactId>
    <scope>runtime</scope>
</dependency>

effect:

MySQL Connector/Jis a driver for Java applications to interact with MySQL databases. It allows access to MySQL databases through the JDBC API.

Key knowledge points:

JDBC (Java Database Connectivity): A Java API for executing SQL statements that can be used to query and update data in a database.
runtime range: This dependency is only required at runtime, so it will not participate in compilation at compile time.

4. lombok

<dependency>
    <groupId></groupId>
    <artifactId>lombok</artifactId>
    <optional>true</optional>
</dependency>

effect:

LombokIt is a Java library that simplifies common boilerplate code in Java code through annotations, such as getters, setters, constructors, etc.

Key knowledge points:

Simplify the code: By using Lombok annotations, developers can greatly reduce the lengthy getters, setters, equals, hashCode and toString methods.

5. spring-boot-starter-test

&lt;dependency&gt;
    &lt;groupId&gt;&lt;/groupId&gt;
    &lt;artifactId&gt;spring-boot-starter-test&lt;/artifactId&gt;
    &lt;scope&gt;test&lt;/scope&gt;
&lt;/dependency&gt;

effect:

Spring Boot Test StarterIt is a test launcher provided by Spring Boot, which contains the core dependencies required to test Spring Boot applications. It includesJUnit 5、Mockito、AssertJandSpring TestModule.

Key knowledge points:

JUnit 5: Java's mainstream testing framework for writing unit tests.
Mockito: A popular Mocking framework that allows the creation and configuration of mock objects to simplify testing.
Spring Test: Spring provides test support, allowing developers to easily write and execute tests based on Spring framework.

6. mybatis-spring-boot-starter-test

<dependency>
    <groupId></groupId>
    <artifactId>mybatis-spring-boot-starter-test</artifactId>
    <version>3.0.3</version>
    <scope>test</scope>
</dependency>

effect:

This dependency is used to integrate MyBatis functionality in tests and provides some tools and configurations specifically for MyBatis testing to help developers write and run tests integrated with MyBatis.

Build plugins

<build>
    <plugins>
        <plugin>
            <groupId></groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <excludes>
                    <exclude>
                        <groupId></groupId>
                        <artifactId>lombok</artifactId>
                    </exclude>
                </excludes>
            </configuration>
        </plugin>
    </plugins>
</build>

spring-boot-maven-plugin

effect:

This is a Maven plug-in provided by Spring Boot for packaging and running Spring Boot applications. It allows developers to passmvn spring-boot:runThe command starts the application, or you can use itmvn packageThe command packages executable JAR files.

Key knowledge points:

Exclude Lombok: Since Lombok is an optional dependency, it is excluded from the build by configuring it to avoid it being packaged into the final JAR file.

Conclusion

With these dependencies and plug-in configurations, you can easily build, run, and test a Spring Boot and MyBatis-based web application. Understanding the role of these dependencies and related knowledge points will not only help you master Spring Boot's project configuration, but also allow you to develop and maintain enterprise-level applications more efficiently.

This is the article about the use of SpringBoot project POM files. For more related SpringBoot project POM files, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!