创建自己的Spring Boot Starter

抽取通用模块作为项目的一个spring boot starter。可参照mybatis的写法。

IDEA创建Empty Project并添加如下2个module，一个基本maven模块，另一个引入spring-boot-starter依赖。

1) xxx-spring-boot-starter - 引入依赖并管理依赖版本

demo-spring-boot-starter

    <dependencies>
        <dependency>
            <groupId>org.chris</groupId>
            <artifactId>demo-spring-boot-autoconfigure</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>

2) xxx-spring-boot-autoconfigure - xxx的自动配置类

demo-spring-boot-autoconfigure

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
    </dependencies>

属性类DemoProperties

@ConfigurationProperties(prefix = "chris.demo")
public class DemoProperties {
    private String name;
    private String content;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }
}

　功能类DemoService

public class DemoService {

    private DemoProperties demoProperties;

    public DemoProperties getDemoProperties() {
        return demoProperties;
    }

    public void setDemoProperties(DemoProperties demoProperties) {
        this.demoProperties = demoProperties;
    }

    public String demoShow(){
        return this.demoProperties.getName() + " ----- " + this.demoProperties.getContent();
    }
}

自动配置类DemoAutoConfiguration

@Configuration
@ConditionalOnWebApplication
@EnableConfigurationProperties(DemoProperties.class)
public class DemoAutoConfiguration {

    @Autowired
    private DemoProperties demoProperties;

    @Bean
    public DemoService demoService(){
        DemoService demoService = new DemoService();
        demoService.setDemoProperties(demoProperties);
        return demoService;
    }
}

最后添加DemoAutoConfiguration到EnableAutoConfiguration中

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
org.chris.springboot.DemoAutoConfiguration

在新的spring boot项目中如果需要引用以上starter，只需要在依赖中添加如下，

        <dependency>
            <groupId>org.chris</groupId>
            <artifactId>demo-spring-boot-starter</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

测试类DemoController

@RestController
public class DemoController {

    @Autowired
    private DemoService demoService;

    @GetMapping("demo")
    public String demo(){
        return demoService.demoShow();
    }
}

附上代码

demo-starter, demo