SPRINGBOOT读取PROPERTIES配置文件数据过程详解

网友投稿 440 2022-12-18


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 fruits;

private HashMap 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', fruitColor='yellow'},

       Fruit{fruitName='watermelon', fruitColor='green'},

       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")

publichttp:// String springbootTest() {

return brand+"====="+height;

}

}


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