SpringBoot项目获取统一前缀配置以及获取非确定名称配置

在SpringBoot项目中，我们经常看到统一前缀的配置，我们该怎么统一获取
my.config.a.name=xiaoming
my.config.a.age=18
my.config.a.address=guangdong

my.config.b.name=xiaomli
my.config.b.age=20
my.config.b.address=shandong

方式一：使用对应的配置类并结合注解：@ConfigurationProperties(prefix = “xxx.xxx”)

配置文件：

my.config.name=xiaoming
my.config.age=18
my.config.address=guangdong

对应的配置类：MyProperties

import lombok.Getter;
import lombok.Setter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

/**
 * @author gooluke
 */
@Component
@ConfigurationProperties(prefix = "my.config")
@Getter
@Setter
public class MyProperties {

    private String name;
    private int age;
    private String address;
}

获取配置类，打印属性：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/test")
public class TestController {

    @Autowired
    private MyProperties myProperties;

    @RequestMapping("/show")
    public void show() {
        System.out.println("myProperties.getName() = " + myProperties.getName());
        System.out.println("myProperties.getAge() = " + myProperties.getAge());
        System.out.println("myProperties.getAddress() = " + myProperties.getAddress());
    }
}

打印结果：

方式二：获取统一前缀，而后面非确定字段名的配置

配置文件：

my.config.a.name=xiaoming
my.config.a.age=18
my.config.a.address=guangdong

my.config.b.name=xiaomli
my.config.b.age=20
my.config.b.address=shandong

对应的配置类：

import lombok.Getter;
import lombok.Setter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

import java.util.Map;

/**
 * @author gooluke
 */
@Component
@ConfigurationProperties(prefix = "my")
@Getter
@Setter
public class MyProperties2 {

	//这里的config得对应上my.config.xx里的config
    private Map<String, UserInfoConfig> config;

    @Setter
    @Getter
    public static class UserInfoConfig {
        private String name;
        private Integer age;
        private String address;
    }

}

获取配置类，打印属性：

@Autowired
private MyProperties2 myProperties2;

@RequestMapping("/show2")
public void show2() {
    Map<String, MyProperties2.UserInfoConfig> config = myProperties2.getConfig();
    config.forEach((user, userInfoConfig) -> {
        System.out.println("user = " + user);
        System.out.println("userInfoConfig.getName() = " + userInfoConfig.getName());
        System.out.println("userInfoConfig.getAge() = " + userInfoConfig.getAge());
        System.out.println("userInfoConfig.getAddress() = " + userInfoConfig.getAddress());
    });
}

打印结果：