spring boot读取yml文件spring boot自动读取配置功能很方便，但当配置内容过大时，需要分文件进行维护

spring boot自动读取配置功能很方便，但当配置内容过大时，需要分文件进行维护，否则维护不方便。多个配置文件时使用@PropertySource注解进行指定配置文件名，但此注解默认解析properties文件，无法解析yaml，显示结果为null。

截图.png 虽然默认无法解析，但提供了factory配置，我们可以通过配置此参数来实现。

首先实现接口PropertySourceFactory

import org.springframework.beans.factory.config.YamlPropertiesFactoryBean;
import org.springframework.core.env.PropertiesPropertySource;
import org.springframework.core.env.PropertySource;
import org.springframework.core.io.support.EncodedResource;
import org.springframework.core.io.support.PropertySourceFactory;

import java.io.IOException;
import java.util.Properties;

public class YamlPropertySourceFactory implements PropertySourceFactory {
    @Override
    public PropertySource<?> createPropertySource(String s, EncodedResource encodedResource) throws IOException {
        YamlPropertiesFactoryBean factoryBean = new YamlPropertiesFactoryBean();
        factoryBean.setResources(encodedResource.getResource());
        factoryBean.afterPropertiesSet();
        Properties ymlProperties = factoryBean.getObject();
        String propertyName = s !=null ? s: encodedResource.getResource().getFilename();
        return new PropertiesPropertySource(propertyName, ymlProperties);
    }
}

然后在基类的**@PropertySource**注解上加上 factory = YamlPropertySourceFactory.class

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.PropertySource;
import org.springframework.stereotype.Component;

@Data
@Component
@PropertySource(value = "classpath:workWX.yml", encoding = "UTF-8", factory = YamlPropertySourceFactory.class)
@ConfigurationProperties(prefix = "wx")
public class WXWorkConfig {

    public String corpId;
    private String corpSecret;
    private String departmentId;
    private String fetchChild;
    private String url;
    private String getToken;
    private String getUserList;
}

效果

截图.png