SpringBoot自定义Starter实现流程详解

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

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-autoconfigure</artifactId>
	<version>2.2.9.RELEASE</version>
</dependency>

package com.duohoob.bean;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.context.properties.ConfigurationProperties;
/**
 * 这两个都是非@Component注解，
 * 否则springboot启动时会直接被加载进spring容器
 */
@EnableAutoConfiguration
@ConfigurationProperties(prefix = "simplebean")
public class SimpleBean {
	private String id;
	private String name;
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	@Override
	public String toString() {
		return "SimpleBean{" +
				"id='" + id + '\'' +
				", name='" + name + '\'' +
				'}';
	}
}

package com.duohoob.config;
import com.duohoob.bean.SimpleBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MyAutoConfiguration {
	@Bean
	public SimpleBean simpleBean() {
		return new SimpleBean();
	}
}

<dependency>
	<groupId>com.duohoob</groupId>
	<artifactId>mystarter-spring-boot-starter</artifactId>
	<version>1.0-SNAPSHOT</version>
</dependency>

package com.duohoob.springbootmytest.controller;
import com.duohoob.bean.SimpleBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class TestController {
	@Autowired
	private SimpleBean simplebean;
	@RequestMapping("/test")
	public String test() {
		return simplebean.toString();
	}
}