Quickly Build a Maven + Spring + SpringMVC + MyBatis + SpringBoot Project in IntelliJ IDEA

The most popular Java web stack today is SSM (Spring, SpringMVC, MyBatis), and SpringBoot’s lightweight, annotation‑driven approach has become equally popular. This guide shows how to quickly scaffold a Maven‑based project that combines Spring, SpringMVC, MyBatis, and SpringBoot in IntelliJ IDEA.

1. Create the project – Use Spring Initializr in IntelliJ, add the basic dependencies Web, MySQL, and MyBatis, and generate the project (GitHub repo: https://github.com/HowieYuan/SSM-SpringBoot).

2. Configure the data source – Set up the database connection information in application.properties and optionally configure IDEA’s data source view.

spring.datasource.url = jdbc:mysql://<span style="color: rgb(92, 99, 112); font-style: italic">//xx.xx.xx.x:xxx/xxx?characterEncoding=utf8&allowMultiQueries=true&useSSL=false</span>
spring.datasource.username = root
spring.datasource.password = 123456
spring.datasource.driver-class-name = com.mysql.jdbc.Driver

Key properties include url, username, password, and driver-class-name (e.g., com.mysql.jdbc.Driver for MySQL).

3. Spring annotations – Use @Controller / @RestController for controllers, @Service for service layer, @Repository for mapper interfaces, @Component for generic beans, and @Configuration for configuration classes.

4. MyBatis integration – Declare mapper XML files, set mybatis.mapperLocations and mybatis.typeAliasesPackage in application.properties, and optionally configure additional MyBatis settings.

<mapper namespace="com.swit.dao.MyMapper">
    ...
</mapper>

Mapper scanning can be done either with @MapperScan("com.swit.dao") on the main class or by annotating each mapper interface with @Mapper and @Repository.

5. Important SpringBoot annotations – @SpringBootApplication combines @Configuration, @EnableAutoConfiguration, and @ComponentScan, eliminating the need for those three annotations separately.

6. Deployment considerations – To package the application as a WAR for external servlet containers, extend SpringBootServletInitializer and override configure. Add the Spring Boot Maven plugin and the Maven compiler plugin to pom.xml for building.

<build>
    <finalName>projectName</finalName>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.1</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
                <skip>true</skip>
            </configuration>
        </plugin>
    </plugins>
</build>

Cross‑origin support can be added via a custom CorsFilter component that sets the appropriate response headers.

@Component
public class CorsFilter implements Filter {
    private String tokenHeader = "X_Auth_Token";
    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) res;
        HttpServletRequest request = (HttpServletRequest) req;
        // set CORS headers ...
        chain.doFilter(req, res);
    }
    // init and destroy omitted
}

7. Optional components

• Redis – Add spring-boot-starter-data-redis dependency and configure connection properties in application.properties.

# Redis configuration
spring.redis.database=0
spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.password=123456
spring.redis.pool.max-active=15
spring.redis.timeout=0

• Druid datasource – Include the Druid dependency and set pooling properties in application.properties.

spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.filters=stat
spring.datasource.maxActive=20
spring.datasource.initialSize=5
spring.datasource.maxWait=60000
spring.datasource.minIdle=1
spring.datasource.validationQuery=select 'x'
spring.datasource.testWhileIdle=true

Finally, the author invites readers to like and share the tutorial.