【Spring Boot】Spring Boot之自定义配置参数绑定到Java Bean

一、@Value方式

1.我的配置文件：application-dev.yml

# 自定义项目配置
startproject:
  pro1: 11
  pro2: 11
  pro3: 11
  pro4: 11
  lists:
    - ‘1‘
    - ‘2‘
    - ‘3‘
  maps:
    key1: 1
    key2: 2
    key3: 3

2.我的Java Bean

/**
 * @author zhangboqing
 * @date 2018/9/18
 */
@Data
@Configuration
public class CustomCode {

    //====================== 项目配置 ============================

    @Value("${startproject.pro1}")
    private String pro1;
    @Value("${startproject.pro2}")
    private String pro2;
    @Value("${startproject.pro3}")
    private String pro3;
    @Value("${startproject.pro4}")
    private String pro4;
    @Value("${startproject.lists[0]},${startproject.lists[1]},${startproject.lists[2]}")
    private List<String> lists;
//    @Value("${startproject.maps2}") 无法获取到
//    private Map<String,Object> maps;

}

二、@ConfigurationProperties方式 （推荐）

1.我的配置文件：application-dev.yml

# 自定义项目配置startproject:  pro1: 11  pro2: 11  pro3: 11  pro4: 11  lists:    - ‘1‘    - ‘2‘    - ‘3‘  maps:    key1: 1    key2: 2    key3: 3  maps2: {key1: 1,key2: 2,key3: 3}

2.我的Java Bean

/**
 * @author zhangboqing
 * @date 2018/9/18
 */
@Data
@Configuration
@ConfigurationProperties(prefix = "startproject")
public class CustomCode {

    //====================== 项目配置 ============================

    private String pro1;
    private String pro2;
    private String pro3;
    private String pro4;

    private List<String> lists;
    private Map<String,Object> maps;
    private Map<String,Object> maps2;

}

原文地址：https://www.cnblogs.com/756623607-zhang/p/11192217.html