SpringBoot 配置 yaml，properties 配置文件值获取（数组，对象，Map）以及 properties 配置文件打印中文乱码问题解决

秒速五厘米 2024-04-17 05:51 53阅读 0赞

>  *  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
>  *  只有这个组件是容器中的组件，才能容器提供的@ConfigurationProperties功能

Person：

package com.atguigu.springboot.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;
    
    /**
     * @Classname Person
     */
    @Component
    @ConfigurationProperties(prefix = "person")
    public class Person {
    
        private String name;
        private Integer age;
        private Boolean stage;
        private Date birth;
        private Map<String,Object> maps;
        private List<Object> lists;
        private Child child;
    
        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 getStage() {
            return stage;
        }
    
        public void setStage(Boolean stage) {
            this.stage = stage;
        }
    
        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 Child getChild() {
            return child;
        }
    
        public void setChild(Child child) {
            this.child = child;
        }
    
        @Override
        public String toString() {
            return "Person{" +
                    "name='" + name + '\'' +
                    ", age=" + age +
                    ", stage=" + stage +
                    ", birth=" + birth +
                    ", maps=" + maps +
                    ", lists=" + lists +
                    ", child=" + child +
                    '}';
        }
    }

Child：

package com.atguigu.springboot.pojo;
    
    /**
     * @Classname Child
     */
    public class Child {
        private String name;
        private Integer age;
    
        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;
        }
    
        @Override
        public String toString() {
            return "Child{" +
                    "name='" + name + '\'' +
                    ", age=" + age +
                    '}';
        }
    }

导入配置文件处理器，以后编写配置就有提示

<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-configuration-processor</artifactId>
    			<optional>true</optional>
    		</dependency>

### application.yml ###

person:
       name: typ
       age: 20
       stage: true
       birth: 2019/07/15
       maps: {name: jack, age: 12}
       lists:
        - dog
        - cat
       child:
        name: lucy
        age: 11

测试：

package com.atguigu.springboot;
    
    import com.atguigu.springboot.pojo.Person;
    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;
    
    import javax.annotation.Resource;
    
    @RunWith(SpringRunner.class)
    @SpringBootTest
    public class SpringBoot01HelloworldApplicationTests {
    
    	@Autowired
    	private Person person;
    	@Test
    	public void contextLoads() {
    		System.out.println(person.toString());
    	}
    
    }

结果：

> Person\{name='typ', age=20, stage=true, birth=Mon Jul 15 00:00:00 CST 2019, maps=\{name=jack, age=12\}, lists=\[dog, cat\], child=Child\{name='lucy', age=11\}\}

## ##

### application.properties ###

#person
    person.name=詹金斯
    person.age=20
    person.birth=2019/01/01
    person.stage=true
    person.maps.name=jack
    person.maps.age=16
    person.lists=a,b,c,d,e,f
    person.child.name=露西
    person.child.age=11

结果（有乱码）：

> Person\{name='Õ²ï¿½ï¿½Ë¹', age=20, stage=true, birth=Tue Jan 01 00:00:00 CST 2019, maps=\{age=16, name=jack\}, lists=\[a, b, c, d, e, f\], child=Child\{name='Â¶ï¿½ï¿½', age=11\}\}

###  File-->Settings ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTY2Nzcy_size_16_color_FFFFFF_t_70][]

重新输入中文：

测试结果：

> Person\{name='詹金斯', age=20, stage=true, birth=Tue Jan 01 00:00:00 CST 2019, maps=\{age=16, name=jack\}, lists=\[a, b, c, d, e, f\], child=Child\{name='露西', age=11\}\}

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