Spring Boot:yaml学习笔记

Spring Boot:yaml学习笔记

在Spring Boot中，一般用yaml代替原来的peoperties文件来进行数据交互。
Spring Boot能自动识别的配置文件名：application.yaml或application.properties

yaml语法

# 普通键值对，分号后面一定要加一个空格
key: value
# 对象,对象的属性一定要设置在对象后（回车+空格）
Person:
  name: xiaoming
  age: 1
# Map集合或对象行内写法 
map: {k1: v1,k2: v2}
# List集合或数组
lists:
  - code
  - music
  - girl
# 数组行内写法
Array: [cat,dog,pig]

yaml属性绑定类

用@ConfigurationProperties(prefix = “”)注解的类绑定yaml中的属性

package com.huang.pojo;

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

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

@Component
@ConfigurationProperties(prefix = "person")
public class Person {
    private String name;
    private Integer age;
    private Boolean happy;
    private Date birth;
    private Map<String,Object> maps;
    private List<Object> lists;
    private Dog dog;

    public Person() {
    }

    public Person(String name, Integer age, Boolean happy, Date birth, Map<String, Object> maps, List<Object> lists, Dog dog) {
        this.name = name;
        this.age = age;
        this.happy = happy;
        this.birth = birth;
        this.maps = maps;
        this.lists = lists;
        this.dog = dog;
    }

    public String getName() {
        return name;
    }

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

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public Boolean getHappy() {
        return happy;
    }

    public void setHappy(Boolean happy) {
        this.happy = happy;
    }

    public Date getBirth() {
        return birth;
    }

    public void setBirth(Date birth) {
        this.birth = birth;
    }

    public Map<String, Object> getMaps() {
        return maps;
    }

    public void setMaps(Map<String, Object> maps) {
        this.maps = maps;
    }

    public List<Object> getLists() {
        return lists;
    }

    public void setLists(List<Object> lists) {
        this.lists = lists;
    }

    public Dog getDog() {
        return dog;
    }

    public void setDog(Dog dog) {
        this.dog = dog;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", happy=" + happy +
                ", birth=" + birth +
                ", maps=" + maps +
                ", lists=" + lists +
                ", dog=" + dog +
                '}';
    }
}

person:
  name: xiaoming
  age: 21
  happy: false
  birth: 1111/11/11
  maps: {k1: v1,k2: v2}
  lists:
    - code
    - music
    - girl
  dog:
    name: 来福
    age: 36

IDEA注解类上红色提示消除办法：

导入如下依赖

<dependency>
	<groupId>org.springframework.bootgroupId>
	<artifactId>spring-boot-configuration-processorartifactId>
	<optional>trueoptional>
dependency>

yaml中springboot多环境配置

server:
  port: 8081
spring:
  profiles:
    active: test
# 选中的环境
---
server:
  port: 8082
spring:
  profiles: dev

---
server:
  port: 8083
spring:
  profiles: test