标签：Fix style oid com pack ati aml yml factory
新建 javaBean，有那么多个成员变量：【get、set、toString 那些不用我教了吧......】
private String lastName; private Integer age; private Boolean boss; private Date birth; private Map<String,Object> maps; private List<Object> lists; private Dog dog; //dog里面一个name（String） 一个age（Integer）
package com.bihu.Bean; import java.util.Date; import java.util.List; import java.util.Map; 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; } }
然后呢 我们新建一个application.yml：
然后吧这些对着这些值写入：
person: lastName: hello age: 18 boss: false birth: 2017/12/12 maps: {k1: v1,k2: 12} lists: ‐ lisi ‐ zhaoliu dog: name: 小狗 age: 12
怎么把yml配置文件的数据映射到JavaBean，我们在JavaBean中添加注解，但是要一个gav：
一定要这个gav 才能映射：
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional> </dependency>
然后你在JavaBean类添加以下注解（注意看注释 注释说明一切）
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; /** * 将配置文件中配置的每一个属性的值，映射到这个组件中 * @Component:只有这个组件是容器中的组件，才能容器提供的@ConfigurationProperties功能； * @ConfigurationProperties：告诉SpringBoot将本类中的所有属性和配置文件中相关的配置进行绑定； * prefix = "person"：配置文件中哪个下面的所有属性进行一一映射 */ @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; } }
条件：
1.添加到SpringBoot 成为组件，用@Component 即可，
2.映射绑定：用@ConfigurationProperties绑定，其中用属性 prefix 说明 绑定那个对象
最后我们测试一下，在SpringBoot下面的Test测试（自动生成的）
按照下面我代码来即可：
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); } }
这里测试了 JavaBean，我们还打印了，结果如下：
Person{lastName=‘hello‘, age=18, boss=false, birth=Tue Dec 12 00:00:00 CST 2017, maps={k1=v1, k2=12}, lists=[‐ lisi ‐ zhaoliu], dog=Dog{name=‘小狗‘, age=12}}
可以看到 完全注入进去了
这就是YAML配置文件 注入 JavaBean中、
标签：Fix style oid com pack ati aml yml factory
原文地址：https://www.cnblogs.com/bi-hu/p/15070067.html
