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

Posted 2022-04-16 756623607-zhang

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;