springboot获取自定义配置的值、获取类型安全的自定义配置的值和profile配置

一、获取自定义配置的值

application.properties配置

book.name=springboot

@Controller或@Service组件配置

@Value("${book.name}")
private String name;

二、获取类型安全的自定义配置的值

application.properties配置

book.name=springboot

@Controller或@Service组件配置

@ConfigurationProperties(prefix="book")
public class BookController {

    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }    
}

三、配置文件定义集合类型值

配置文件

#对象配置
#person: {name: huangtingting,age: 19}
person:
  name: mengmeiqi
  age: 18
  #集合配置
  #persons: [{name: huangtingting,age: 18},{name: jujingyi,age: 19}]
  persons:
    - name: jujingyi
      age: 18
    - name: huangtingting
      age: 19

组件

package com.wuxi.bean;

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

import java.util.List;
import java.util.Map;

@Data
@ConfigurationProperties(prefix = "person")//注入配置的值
@Component
public class Person {
    private String name;
    private Integer age;
    private List<Map<String, String>> persons;
}

四、profile配置

application.properties配置

spring.profiles.active=dev

新建application-dev.properties和application-pro.properties