SpringBoot配置——@PropertySource、@ImportResource、@Bean

@PropertySource：加载指定的配置文件

package com.hoje.springboot.bean;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.PropertySource;
import org.springframework.stereotype.Component;
import org.springframework.validation.annotation.Validated;

import javax.validation.constraints.Email;
import java.util.Date;
import java.util.List;
import java.util.Map;

/**
 * 将配置文件中配置的每一个属性的值，映射到这个组件中
 * @ConfigurationProperties :告诉SpringBOot将本类中的所有属性和配置文件中相关配置进行绑定；
 * prefix = "person":配置文件中哪个下面的所有属性进行一一映射
 *
 * 只有这个组件是容器中的组件，才能使用容器中的功能；
 */
@PropertySource(value = {"classpath:person.properties"} )
@Component
@ConfigurationProperties(prefix="person")
@Validated
public class Person {

    /**
     *<bean class="Person">
     *     <property name="LastName" value="字面量/${key}从环境变量、配置文件中获取值/#{SpEL}"></>
     * </>
     */
   /* @Value("${person.last-name}")*/
    @Email
     private String lastName;
   /* @Value("#{11*2}")*/
     private Integer age;
   /*  @Value("true")*/
     private Boolean boss;
     private Date bitrh;
     private Map<String,Object> maps;
     private List<Object>  lists;
     private Dog dog;

    @Override
    public String toString() {
        return "Person{" +
                "lastName='" + lastName + '\'' +
                ", age=" + age +
                ", boss=" + boss +
                ", bitrh=" + bitrh +
                ", maps=" + maps +
                ", lists=" + lists +
                ", dog=" + dog +
                '}';
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public Integer getAge() {
        return age;
    }

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

    public Boolean getBoss() {
        return boss;
    }

    public void setBoss(Boolean boss) {
        this.boss = boss;
    }

    public Date getBitrh() {
        return bitrh;
    }

    public void setBitrh(Date bitrh) {
        this.bitrh = bitrh;
    }

    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;
    }
}

@ImportResource:导入Spring的配置文件，让配置文件里面的内容生效

 

1 <?xml version="1.0" encoding="UTF-8"?>
2 <beans xmlns="http://www.springframework.org/schema/beans"
3        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
5     <bean  ></bean>
6 </beans>

beans.xml