在读取application.yaml文件时获取null值
我正在尝试从我的应用程序中获取数据。包含配置文件详细信息的yAML文件，in variables
文件
spring.profiles.active: dev
---
spring.config.activate.on-profile: dev
application.id : dev-app
my.server : localhost:8080
---
spring.config.activate.on-profile: uat
application.id : uat-app
my.server : localhost:8081
。
@SpringBootApplication
public class App {
@Value("${application.id}")
private String applicationId;
@Value("${my.server}")
private String server;
public static void main(String args[]) {
SpringApplication.run(App.class, args);
App app = new App();
app.display();
}
public void display(){
System.out.println("Application Id : "+ applicationId);
System.out.println("Server : "+ server);
}
}
目录
2022-06-08 19:38:29 main INFO App:640 - The following 1 profile is active: "dev"
2022-06-08 19:38:30 main INFO App:61 - Started App in 2.266 seconds (JVM running for 3.345)
Application Id : null
Server : null
application.yaml
I am trying to fetch the data from my application.yaml file which contain profile details, into variables
application.yaml file contents
spring.profiles.active: dev
---
spring.config.activate.on-profile: dev
application.id : dev-app
my.server : localhost:8080
---
spring.config.activate.on-profile: uat
application.id : uat-app
my.server : localhost:8081
App.java
@SpringBootApplication
public class App {
@Value("${application.id}")
private String applicationId;
@Value("${my.server}")
private String server;
public static void main(String args[]) {
SpringApplication.run(App.class, args);
App app = new App();
app.display();
}
public void display(){
System.out.println("Application Id : "+ applicationId);
System.out.println("Server : "+ server);
}
}
Output:
2022-06-08 19:38:29 main INFO App:640 - The following 1 profile is active: "dev"
2022-06-08 19:38:30 main INFO App:61 - Started App in 2.266 seconds (JVM running for 3.345)
Application Id : null
Server : null
Could you please help me to understand why it is not picking the values from yaml file?
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文件格式，您需要将属性格式化为YML格式。
在YML中，您所拥有的格式是“ .properties的
in your yml, what you have is formatted in a ".properties' file format, you need to format your property to yml format. So, your yml file should be in the format (something like this):
etc...