4-1说了yml文件置入JavaBean，properties文件也是一样的。
配置都一样，就是properties是这样写：
#private String lastName;
#private Integer age;
#private Boolean boss;
#private Date birth;
#private Map<String,Object> maps;
#private List<Object> lists;
#private Dog dog;
#=============================================================
#person.lastName 相当于 person.last-name 【松散写法】
person.last-name=BiHu
person.age=18
person.boss=false
person.birth=2025/10/10
person.maps.k1=value1
person.maps.k2=value2
person.lists=v1,v2,v3,v4
person.dog.name=小勾勾
person.dog.age=2
然后其他都一样的 即：
package com.bihu.Bean;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import java.util.Date;
import java.util.List;
import java.util.Map;
//无论是properties 还是 yml 文件绑定映射 JavaBean 都是下面两个注解原理而且要导入对应gav，原理也说明白了
@Component
@ConfigurationProperties(prefix = "person")
public class JavaBean {
private String lastName;
private Integer age;
private Boolean boss;
private Date birth;
private Map<String,Object> maps;
private List<Object> lists;
private Dog dog;
@Override
public String toString() {
return "Person{" +
"lastName='" + lastName + '\'' +
", age=" + age +
", boss=" + boss +
", birth=" + birth +
", 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 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;
}
}
JavaBean.java
我们在用Test 测试一下：
package com.bihu;
import com.bihu.Bean.JavaBean;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class) //有了@RunWith(SpringRunner.class)这些类才能实例化到spring容器中，自动注入才能生效，
@SpringBootTest
public class ApplicationTests {
//这里测试JavaBean
@Autowired
JavaBean Person;
@Test
public void contextLoads() {
System.out.println(Person);
}
}
ApplicationTests.java
发现小勾勾中文乱码 ，因为IDEA默认是UTF-8，我们在IDEA设置 查找 file Encodings ,编码换为UTF-8 右边是否转换ASCLL码 打钩即可
运行结果:
Person{lastName='BiHu', age=18, boss=false, birth=Fri Oct 10 00:00:00 CST 2025, maps={k1=value1, k2=value2}, lists=[v1, v2, v3, v4], dog=Dog{name='小勾勾', age=2}}
其实挺简单的
【松散写法】
作者：咸瑜
