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SPRINGBOOT讀取PROPERTIES配置文件數(shù)據(jù)過(guò)程詳解

來(lái)源:本站原創(chuàng)|時(shí)間:2020-01-10|欄目:Java|點(diǎn)擊: 次

這篇文章主要介紹了SPRINGBOOT讀取PROPERTIES配置文件數(shù)據(jù)過(guò)程詳解,文中通過(guò)示例代碼介紹的非常詳細(xì),對(duì)大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價(jià)值,需要的朋友可以參考下

一.使用@ConfigurationProperties來(lái)讀取

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', fruitColor='yellow'}, 
       Fruit{fruitName='watermelon', fruitColor='green'}, 
       Fruit{fruitName='strawberry', fruitColor='red'}
      ], 
  map={age=22, gender=female, name=xiaomao}}

二、使用@Value來(lái)讀取

在springTest中無(wú)法使用@Value來(lái)讀取配置屬性,需要放到Controller中去讀取

@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;
  }
}

以上就是本文的全部?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持我們。

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