這篇文章主要介紹如何在springboot中如何建立含有多個module的工程,栗子中含有兩個 module,一個做爲libarary. 工程,另一個是主工程,調用libary .其中libary jar有一個服務,main工程調用這個服務。java
建立一個maven 工程,其pom文件爲:web
<?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>
須要注意的是packaging標籤爲pom 屬性。spring
libary工程爲maven工程,其pom文件的packaging標籤爲jar 屬性。建立一個service組件,它讀取配置文件的 service.message屬性。apache
@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; } }
提供一個對外暴露的方法:springboot
@Configuration @EnableConfigurationProperties(ServiceProperties.class) public class ServiceConfiguration { @Bean public Service service(ServiceProperties properties) { return new Service(properties.getMessage()); } }
引入相應的依賴,建立一個web服務:架構
@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); } }
架構代碼以下:app
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