Spring Boot-加载多个YAML文件 [英] Spring Boot - Load multiple YAML files

问题描述

我正在为项目使用Spring Boot，并尝试加载yaml文件，以便可以在项目中使用文件中的数据.例如，我的application.yml中包含如下内容.

I'm using Spring boot for my project and trying to load yaml files so that I can use the data in the files in my project. For example I have content in my application.yml like below.

currency:
     code:
        840: 2
        484: 2
        999: 0

在我从application.yml中读取内容的代码中，我有一个类似的类.

And in my code for reading the content from application.yml I have a class like this.

import java.util.Map;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;

@Configuration
@ConfigurationProperties(prefix = "currency")
public class Currency {

   private Map<String, String> code;

   public Map<String, String> getCode() {
       return code;
   }
   public void setCode(Map<String, String> code) {
       this.code = code;
   }
}

如果我将它打印在测试课中

And If I print it in the test class

public class Test{

@Autowired
Currency currency;

Map<String, String> test = currency.getCode();
       for (Map.Entry<String, String> entry : test.entrySet()) {
           System.out.println("Key : " + entry.getKey() + " Value : " + entry.getValue());
       }
}

我在下面变得很完美.

Key : 840 Value : 2
Key : 484 Value : 2
Key : 999 Value : 0

如果我将application.yml保留在jar本身中，或者也可以将其放置在git repo中进行读取，则此方法可以正常工作.

This is working if I keep the application.yml in my jar itself or I can read it by placing it in git repo aswell.

我尝试将内容保留在currency.yml和application.yml中，我尝试使用spring.config.location，以便可以直接从currency.yml读取内容，但是没有用.

I tried keeping the content in currency.yml and in my application.yml I tried to use spring.config.location, so that I can read the content from currency.yml directly but it didn't work.

我想加载诸如currency.yml和codes.yml等文件，这些文件是自定义的yml文件，以便我可以读取多个文件的内容并在我的应用程序中使用.我可以使用任何注释或某种方法来加载custom.yml文件吗?

I would like to load files like currency.yml and codes.yml etc... which are custom yml files so that I can read multiple files content and use in my application. Are there any annotations or some approach I can use to load custom.yml files?

推荐答案

在项目的.yml文件中添加以下内容.

In the .yml file of the project add below content.

spring:
  profiles:
    include:
      - currency

注意:如果需要，您可以通过这种方式引用多个.yml文件.您需要其他.yml文件和Config类，例如下面的示例.

Note: You can refer to multiple .yml files this way if you want. You need additional .yml files and Config classes like below example.

您需要另一个.yml文件，该文件是 application-currency.yml

You need to have another .yml file which is application-currency.yml

在application-currency.yml中，您可以添加如下所示的货币

In application-currency.yml you can add currencies, like below

currencies:
  mappings:
    USD:
      fraction: 2
      symbol: $
      text: "US Dollar"
    MXN:
      fraction: 2
      symbol: $
      text: "Mexican Peso"

您的配置类如下所示.

package com.configuration;

import com.Currency;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.stereotype.Component;

import java.util.Map;

@Component
@EnableConfigurationProperties
@ConfigurationProperties(prefix = "currencies")
public class CurrencyConfiguration {

    private Map<String, Currency> mappings;

    public Map<String, Currency> getMappings() {
        return mappings;
    }

    public void setMappings(Map<String, Currency> mappings) {
        this.mappings = mappings;
    }
}

您需要使用可通过致电获得的货币详细信息，如下所示.

Wherever you need to use the currency details you can get by calling as shown below.

@Autowired
private CurrencyConfiguration currencyConfiguration;

String currencyCodeAlpha3 = "USD";
Currency currency = currencyConfiguration.getMappings().get(currencyCodeAlpha3);

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