java Spring Boot - 加载多个 YAML 文件
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Spring Boot - Load multiple YAML files
提问by Arun
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.
我正在为我的项目使用 Spring boot 并尝试加载 yaml 文件，以便我可以使用项目中文件中的数据。例如，我的 application.yml 中有如下内容。
currency:
code:
840: 2
484: 2
999: 0
And in my code for reading the content from application.yml I have a class like this.
在我从 application.yml 读取内容的代码中，我有一个这样的类。
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;
}
}
And If I print it in the test class
如果我在测试类中打印它
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());
}
}
I'm getting like below which is perfect.
我越来越像下面这是完美的。
Key : 840 Value : 2
Key : 484 Value : 2
Key : 999 Value : 0
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.
如果我将 application.yml 保存在我的 jar 中，或者我可以通过将它放在 git repo 中来读取它，这将起作用。
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.
我尝试将内容保留在currency.yml 中，而在我的application.yml 中，我尝试使用spring.config.location，这样我就可以直接从currency.yml 中读取内容，但是没有用。
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?
我想加载诸如currency.yml 和codes.yml 等文件……它们是自定义yml 文件，以便我可以读取多个文件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？
回答by Arun
In the .yml file of the project add below content.
在项目的 .yml 文件中添加以下内容。
spring:
profiles:
include:
- currency
Note:You can refer to multiple .yml files this way if you want. You need additional .yml files and Config classes like below example.
注意：如果需要，您可以通过这种方式引用多个 .yml 文件。您需要额外的 .yml 文件和配置类，如下例所示。
You need to have another .yml file which is application-currency.yml
您需要有另一个 .yml 文件，即application-currency.yml
In application-currency.yml you can add currencies, like below
在 application-currency.yml 中，您可以添加货币，如下所示
currencies:
mappings:
USD:
fraction: 2
symbol: $
text: "US Dollar"
MXN:
fraction: 2
symbol: $
text: "Mexican Peso"
Your Configuration class would look like below.
您的 Configuration 类将如下所示。
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;
}
}
Wherever you need to use the currency details you can get by calling as shown below.
无论您在哪里需要使用货币详细信息，您都可以通过如下所示的电话获得。
@Autowired
private CurrencyConfiguration currencyConfiguration;
String currencyCodeAlpha3 = "USD";
Currency currency = currencyConfiguration.getMappings().get(currencyCodeAlpha3);
回答by Magnus
You can use spring.config.locationto specify paths to additional config files as a comma separated list.
您可以使用spring.config.location以逗号分隔的列表形式指定其他配置文件的路径。
java -jar myproject.jar --spring.config.location=classpath:/default.properties,classpath:/override.properties
