SpringBoot properties 配置文件

2018-02-02

JDK: 1.8

SpringBoot: 1.5.10.RELEASE

SpringBoot 使用一个全局的配置文件，配置文件名是固定的：

application.properties
application.yml

配置文件的作用：修改 SpringBoot 自动配置的默认值

Properties 示例

public class Dog {
	
	private String name;
	
	private Integer age;
	
	@Override
	public String toString() {
		return "Dog{" +
			"name='" + name + '\'' +
			", age=" + 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;
	}
}


import java.util.Date;
import java.util.List;
import java.util.Map;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(prefix = "person")
public class Person {
	
	private String name;
	private Integer age;
	private Boolean boss;
	private Date birthday;
	
	private List<Object> list;
	private Map<String, Object> map;
	private Dog dog;
	
	@Override
	public String toString() {
		return "Person{" +
			"name='" + name + '\'' +
			", age=" + age +
			", boss=" + boss +
			", birthday=" + birthday +
			", list=" + list +
			", map=" + map +
			", dog=" + dog +
			'}';
	}
	
	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 getBoss() {
		return boss;
	}
	
	public void setBoss(Boolean boss) {
		this.boss = boss;
	}
	
	public Date getBirthday() {
		return birthday;
	}
	
	public void setBirthday(Date birthday) {
		this.birthday = birthday;
	}
	
	public List<Object> getList() {
		return list;
	}
	
	public void setList(List<Object> list) {
		this.list = list;
	}
	
	public Map<String, Object> getMap() {
		return map;
	}
	
	public void setMap(Map<String, Object> map) {
		this.map = map;
	}
	
	public Dog getDog() {
		return dog;
	}
	
	public void setDog(Dog dog) {
		this.dog = dog;
	}
}

person.name=张三
person.age=18
person.birthday=2018/02/02
person.boss=false
person.map.key1=value1
person.map.key2=value2
person.list=a,b,c
person.dog.name=旺旺
person.dog.age=3

person toString

1	Person{name='å¼ ä¸', age=18, boss=false, birthday=Fri Feb 02 00:00:00 CST 2018, list=[list1, list2, list3], map={key2=value2, key1=value1, key3=value3}, dog=Dog{name='æºæº', age=3}}

properties 默认编码集是 ISO-8859-1，故中文会乱码

若使用 IDEA，则可通过如下设置：

设置 File Encodings的Transparent native-to-ascii conversion为true，具体步骤如下：依次点击

File -> Settings -> Editor -> File Encodings

将Properties Files (*.properties)下的Default encoding for properties files设置为UTF-8，将Transparent native-to-ascii conversion前的勾选上。

重新创建 properties 文件后，可以发现中文不再乱码

1	Person{name='张三', age=18, boss=false, birthday=Fri Feb 02 00:00:00 CST 2018, list=[list1, list2, list3], map={key2=value2, key1=value1, key3=value3}, dog=Dog{name='旺旺', age=3}}

推荐使用 YAML 格式的配置文件，可以自动处理中文，并且更加直观、简洁