建立一个maven 工程,其pom文件为:html
<?xml version="1.0" encoding="UTF-8"?> <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.forezp</groupId> <artifactId>springboot-multi-module</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>pom</packaging> <name>springboot-multi-module</name> <description>Demo project for Spring Boot</description> </project>
须要注意的是packaging标签为pom 属性。java
libary工程为maven工程,其pom文件的packaging标签为jar 属性。建立一个service组件,它读取配置文件的 service.message属性。nginx
@ConfigurationProperties("service") public class ServiceProperties { /** * A message for the service. */ private String message; public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } }
提供一个对外暴露的方法:web
@Configuration @EnableConfigurationProperties(ServiceProperties.class) public class ServiceConfiguration { @Bean public Service service(ServiceProperties properties) { return new Service(properties.getMessage()); } }
引入相应的依赖,建立一个web服务:spring
@SpringBootApplication @Import(ServiceConfiguration.class) @RestController public class DemoApplication { private final Service service; @Autowired public DemoApplication(Service service) { this.service = service; } @GetMapping("/") public String home() { return service.message(); } public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } }
在配置文件application.properties中加入:apache
service.message=Hello World
打开浏览器访问:http://localhost:8080/;浏览器显示:浏览器
Hello World
说明确实引用了libary中的方法。springboot
源码来源app