SpringBoot02--将application.yaml配置文件中的属性和组件中的属性进行绑定

Posted 2020-12-19 gongxiao

1、在resource下创建一个application.yaml文件

person:
  name: zhangsan
  age: 20
  birth: 1998/02/01
  list:
    - l1
    - l2
    - l3
  map: {k1: v1,k2: v2}

2、创建一个Person类。

@ConfigurationProperties(prefix = "person")：将yaml文件中前缀是person下的属性与Peron类中的属性绑定。
如果要使@ConfigurationProperties(prefix = "person")生效，需要将组件注册到容器中。所以使用@Component注册组件。

package com.killbug.helloworld.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 int age;
    private Date birth;
    private List list;
    private Map map;

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }

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

    public Date getBirth() {
        return birth;
    }

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

    public List getList() {
        return list;
    }

    public void setList(List list) {
        this.list = list;
    }

    public Map getMap() {
        return map;
    }

    public void setMap(Map map) {
        this.map = map;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name=‘" + name + ‘‘‘ +
                ", age=" + age +
                ", birth=" + birth +
                ", list=" + list +
                ", map=" + map +
                ‘}‘;
    }
}