SPRINGBOOT读取PROPERTIES配置文件数据过程详解

这篇文章主要介绍了SPRINGBOOT读取PROPERTIES配置文件数据过程详解,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

一.使用@ConfigurationProperties来读取

1、Coffer entity

@Configuration
@ConfigurationProperties(prefix = "coffer")
@PropertySource("classpath:config/coffer.properties")
public class Coffer {
  private String brand;
  private Double length;
  private Double width;
  private Double height;          //省略了get/set方法
  private String[] contains;
  private ArrayList<Fruit> fruits;
  private HashMap<String,Object> map;
}

2、Fruit entity

@Configuration
@ConfigurationProperties(prefix = "coffer.fruits")
@PropertySource("classpath:config/coffer.properties")
public class Fruit {
  private String fruitName;
  private String fruitColor;        //省略了get/set方法
}

3、coffer.properties

coffer.brand=Camel
coffer.length=100.00
coffer.width=80.00
coffer.height=60.00
coffer.contains[0]=Raincoat
coffer.contains[1]=trousers
coffer.contains[2]=hat
coffer.contains[3]=glove
coffer.contains[4]=scarf
coffer.contains[5]=hood
coffer.fruits[0].fruitName=apricot
coffer.fruits[0].fruitColor=yellow
coffer.fruits[1].fruitName=plum
coffer.fruits[1].fruitColor=green
coffer.fruits[2].fruitName=pineapple
coffer.fruits[2].fruitColor=yellow
coffer.fruits[3].fruitName=watermelon
coffer.fruits[3].fruitColor=green
coffer.fruits[4].fruitName=strawberry
coffer.fruits[4].fruitColor=red
coffer.map.name=xiaomao
coffer.map.age=22
coffer.map.gender=female

4、springbootApplicationTest

@SpringBootTest
class SpringbootApplicationTests {

  @Autowired
  private ApplicationContext ioc;

  @Autowired
  private Coffer coffer;

  @Test
  public void springbootTest(){
    System.out.println(coffer);
  }
}

5、result

Coffer{
　　brand='Camel',　　length=100.0,　　width=80.0,　　height=60.0,　　contains=[Raincoat,trousers,hat,glove,scarf,hood],　　fruits=[
　　　　　　 Fruit{fruitName='apricot',fruitColor='yellow'},　　　　　　 Fruit{fruitName='plum',fruitColor='green'},　　　　　　 Fruit{fruitName='pineapple',　　　　　　 Fruit{fruitName='watermelon',　　　　　　 Fruit{fruitName='strawberry',fruitColor='red'}
　　　　　　],　　map={age=22,gender=female,name=xiaomao}}

二、使用@Value来读取

在springTest中无法使用@Value来读取配置属性,需要放到Controller中去读取

@PropertySource("classpath:config/coffer.properties")
@RestController
public class SpringbootController {

  @Value("${coffer.brand}")
  private String brand;
  @Value("${coffer.height}")
  private Double height;

  @RequestMapping("/test")
  public String springbootTest() {
    return brand+"====="+height;
  }
}

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