Spring boot自定义自动配置类

自动配置类

package com.wisely.spring_boot_starter_hello;
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
@Configuration
@EnableConfigurationProperties(HelloServiceProperties.class)
//判断HelloService这个类在类路径中是否存在
@ConditionalOnClass(HelloService.class)
@ConditionalOnProperty(prefix = "hello",value = "enabled",matchIfMissing = true)
public class HelloServiceAutoConfiguration {
    @Autowired
    private HelloServiceProperties helloServiceProperties;
    
    @Bean
    @ConditionalOnMissingBean(HelloService.class)
    public  HelloService helloService()
    {
        HelloService helloService=new HelloService();
        helloService.setMsg(helloServiceProperties.getMsg());
        return helloService;
    }
}

5 在src/main/resource/META-INF的sping.factories中注册配置

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
com.wisely.spring_boot_starter_hello.HelloServiceAutoConfiguration

 

来源：CSDN

作者：soliderzzz

链接：https://blog.csdn.net/qq_18975791/article/details/104196618