Spring Boot中配置文件信息映射到实体类

# application.properties配置信息映射

com.hundsun.domain.user.id=1001
com.hundsun.domain.user.name=张三
com.hundsun.domain.user.age=30

package com.hundsun.customerGroup.domain;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Data
@NoArgsConstructor
@AllArgsConstructor
@ToString
@Component
@ConfigurationProperties(prefix = "com.hundsun.domain.user")
public class User<E, K, V> {

    private E id;
    private K name;
    private V age;
}

package com.hundsun.customerGroup;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import com.hundsun.customerGroup.domain.User;

@SpringBootTest
class CustomerGroupApplicationTests {

    @Autowired
    private User user;

    @Test
    void contextLoads() {
        System.out.println(user.toString());
    }
}

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User{id=1001, name=张三, age=30}