package com.javasgj.springboot.configuration;import java.util.List;
import java.util.Map;import javax.validation.constraints.Email;import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import org.springframework.validation.annotation.Validated;/*** @Validated：对注入的值进行一些简单的校验；*              @Email          校验邮箱地址*              @AssertFalse    校验false*              @AssertTrue     校验true*              @DecimalMax(value=,inclusive=) 小于等于value，inclusive=true，是小于等于*              @DecimalMin(value=,inclusive=) 与上类似*              @Max(value=)    小于等于value*              @Min(value=)    大于等于value*              @NotNull        检查Null*              @Past           检查日期*              @Pattern(regex=,flag=)  正则*              @Size(min=, max=)       字符串，集合，map限制大小*              这些注解位于javax.validation.constraints包下，校验不通过时抛出异常。* @Component：作为Bean注入到spring容器，或者使用@Configuration；* @ConfigurationProperties：将配置文件中以person前缀的属性值自动绑定到对应的字段中；*/
@Validated
@Component
@ConfigurationProperties(prefix="person")
public class PersonProperties {private String id;private String name;private int age;private String sex;@Emailprivate String email;private String desc;private String desc1;private Map<String, String> maps;private List<String> list;public String getId() {return id;}public void setId(String id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}public String getDesc() {return desc;}public void setDesc(String desc) {this.desc = desc;}public String getDesc1() {return desc1;}public void setDesc1(String desc1) {this.desc1 = desc1;}public Map<String, String> getMaps() {return maps;}public void setMaps(Map<String, String> maps) {this.maps = maps;}public List<String> getList() {return list;}public void setList(List<String> list) {this.list = list;}
}

#properties、yml同时存在，取properties内容#调试信息，控制台查看自动配置报告信息
#debug=true#自定义属性
person.name=Jim
person.age=28
person.sex=0
person.email=111@qq.com
#${}占位符，可以引用配置文件其他属性值，如果没有可以配置一个默认值：${person.name:default}
person.desc=I'm ${person.name}
#n特殊字符，换行
person.desc1=I'm ${person.name} n welcome!
#map数据类型，对象类型同理：person.对象名.属性名
person.maps.privince=js
person.maps.city=nj
#array、list、set集合
person.list[0]=0
person.list[1]=1
#随机数，通过 RandomValuePropertySource工具类。可以生成随机字符串、随机 int 、随机 long、某范围的随机数
#person.id=${random.int}
#person.id=${random.long}
#person.id=${random.long[1,100]}
#person.id=${random.uuid}
person.id=${random.value}

person: name: jim1age: 28sex: 0desc1: I am jim n welcome!list: [0,1,2]
person.maps: {privince: js, city: nj}

package com.javasgj.springboot.configuration;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;/*** spring boot应用启动类*/
@SpringBootApplication
public class Application {public static void main(String[] args) {SpringApplication.run(Application.class, args);}
}

<!-- spring boot test -->
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope>
</dependency>

package com.javasgj.springboot.configuration;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)
@SpringBootTest(classes=Application.class)
public class PersonPropertiesTest {@AutowiredPersonProperties personProperties;@Testpublic void testGetName() {/*** springboot默认以ISO-8859-1编码读取properties文件内容，所以会有中文乱码，我们可以做如下处理解决乱码，* 或者使用yml类型文件进行配置，没有中文乱码问题。*//*try {System.out.println(new String(personProperties.getName().getBytes("ISO-8859-1"), "UTF-8"));} catch (UnsupportedEncodingException e) {e.printStackTrace();}*/System.out.println("结果：" + personProperties.getId());System.out.println("结果：" + personProperties.getName());System.out.println("结果：" + personProperties.getEmail());System.out.println("结果：" + personProperties.getDesc1());System.out.println("结果：" + personProperties.getMaps().keySet().toString());System.out.println("结果：" + personProperties.getList().size());}
}