mvc2springboot

Spring MVC to Spring Boot Migration

Transform traditional Spring MVC projects to Spring Boot while preserving business logic.

Migration Steps

1. pom.xml Transformation

Add Spring Boot parent and modify packaging:

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.2.RELEASE</version>
</parent>
<packaging>jar</packaging>

Add essential dependencies:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
</dependency>
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jstl</artifactId>
</dependency>

Add Maven plugins:

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <executions>
        <execution>
            <goals><goal>repackage</goal></goals>
            <configuration>
                <mainClass>【项目启动类路径】</mainClass>
            </configuration>
        </execution>
    </executions>
</plugin>

Add resources configuration for JSP support:

<resources>
    <resource>
        <directory>src/main/webapp</directory>
        <targetPath>META-INF/resources</targetPath>
        <includes><include>**/**</include></includes>
    </resource>
    <resource>
        <directory>src/main/resources</directory>
        <includes><include>**/**</include></includes>
    </resource>
</resources>

2. Create SpringBootApplication Class

In root package, create startup class:

@SpringBootApplication
@ImportResource({
    "classpath:spring-context.xml",
    "classpath:spring-dubbo.xml",
    "classpath:spring-dubbo-client.xml",
    "classpath:spring-dubbo-server.xml",
    "classpath:spring-mvc.xml"
})
public class ModuleSpringBootApplication {
    private static final Logger logger = LoggerFactory.getLogger(ModuleSpringBootApplication.class);
    
    public static void main(String[] args) {
        SpringApplication.run(ModuleSpringBootApplication.class, args);
        logger.info("==================== ModuleSpringBootApplication started ====================");
    }
}

3. Create application.yml

In src/main/resources/application.yml:

server:
    port: 8080
    context-path: /【模块名称】
spring:
    profiles:
        active: dev
    application:
        name: 【模块名称】
    http:
        encoding:
            enabled: true
            charset: utf-8
            force: true
    autoconfigure:
        exclude: 
            - org.springframework.boot.autoconfigure.freemarker.FreeMarkerAutoConfiguration
            - org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration
    mvc:
        view:
            prefix: /
            suffix: .jsp

4. Migrate web.xml to Java Config

Context Parameters:

@Configuration
public class ContextParamConfig {
    @Bean
    public ServletContextInitializer initializer() {
        return sc -> sc.setInitParameter("webAppRootKey", "【项目.root】");
    }
}

Listeners:

@Configuration
public class ListenerRegistrationConfig {
    @Bean
    public ServletListenerRegistrationBean<IntrospectorCleanupListener> introspectorCleanupListener() {
        return new ServletListenerRegistrationBean<>(new IntrospectorCleanupListener());
    }
    @Bean
    public ServletListenerRegistrationBean<RequestContextListener> requestContextListener() {
        return new ServletListenerRegistrationBean<>(new RequestContextListener());
    }
}

Filters:

@Configuration
public class FilterRegistrationConfig {
    @Bean
    public FilterRegistrationBean<XSSSecurityFilter> getXSSSecurityFilter() {
        FilterRegistrationBean bean = new FilterRegistrationBean(new XSSSecurityFilter());
        Map<String, String> map = new HashMap<>();
        map.put("securityconfig", "xss_security_config.xml");
        map.put("filteringconfig", "xss_filter_config.xml");
        map.put("filter.enable", "true");
        bean.setInitParameters(map);
        bean.addUrlPatterns("/*");
        return bean;
    }
    // Add other filters similarly...
}

Servlets:

@Configuration
public class ServletRegistrationConfig {
    @Bean
    public ServletRegistrationBean<StatViewServlet> druidStatViewServlet() {
        ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet());
        bean.addUrlMappings("/webpage/system/druid/*");
        return bean;
    }
}

5. Static Resources

Move IAF_TAGLIB_TEMP folder to webapp/ - Spring Boot handles it automatically.

6. Create Environment Profiles

• application-dev.properties
• application-test.properties
• application-prod.properties