Play Framework 2.3.8 Java-使用特定模式覆盖默认配置负载

我想使用Java在Play Framework 2.3.8中实现特定于模式的配置加载。我知道这在Scala是可以实现的：

import java.io.File
import play.api._
import com.typesafe.config.ConfigFactory

object Global extends GlobalSettings {
  override def onLoadConfig(config: Configuration, path: File, classloader: ClassLoader, mode: Mode.Mode): Configuration = {
    val modeSpecificConfig = config ++ Configuration(ConfigFactory.load(s"application.${mode.toString.toLowerCase}.conf"))
    super.onLoadConfig(modeSpecificConfig, path, classloader, mode)
  }
}

目前我设法在java中实现了同样的功能，但我无法将typesafe-s

ConfigFactory.load（modeSpecificConfigFile）

从

com.typesafe.config.config

返回对象到

play.Configuration

：

 @Override
    public Configuration onLoadConfig(Configuration configuration, File file, ClassLoader classLoader, Mode mode) {
        String modeSpecificConfigFile = "application." + mode.toString().toLowerCase() + ".conf";
        Logger.debug("Loading mode specific configuration from: " + modeSpecificConfigFile);
        Configuration modeSpecificConfig = ConfigFactory.load(modeSpecificConfigFile);
        return super.onLoadConfig(modeSpecificConfig , file, classLoader);
    }

---

谢谢大家!

将其包装到

play.Configuration

：

Configuration modeSpecificConfig = new play.Configuration(ConfigFactory.load(modeSpecificConfigFile)); 

---

此解决方案在播放2.4.6时不起作用，因为正如它所说：
onLoadConfig已弃用。这种方法没有任何作用。相反，请在配置文件中指定配置或创建自己的ApplicationLoader（请参阅GuiceApplicationBuilder.loadConfig）

因此，我实现了一个更简单的替代解决方案，一个自定义配置加载程序，并在下面共享了示例代码

首先，假设您在“application.conf”中已经有了所有参数
然后为产品环境创建“application.prod.conf”
和（可选）为开发环境创建“application.dev.conf”

示例application.prod.conf

# include the main config file, aka make all common params usable  
include "application.conf"  

# PROD specific params, you can also override params from the included conf  
param.for.prod.1 = "etc etc"  
here.override.for.prod = "blabla"  

public class ConfigManager {
    public static play.Configuration modeSpecificConfig = new play.Configuration(
        ConfigFactory.load(
            "application." + Play.mode().toString().toLowerCase() + ".conf"
            )
        );
}

可在整个应用程序中使用：ConfigManager.java

# include the main config file, aka make all common params usable  
include "application.conf"  

# PROD specific params, you can also override params from the included conf  
param.for.prod.1 = "etc etc"  
here.override.for.prod = "blabla"  

public class ConfigManager {
    public static play.Configuration modeSpecificConfig = new play.Configuration(
        ConfigFactory.load(
            "application." + Play.mode().toString().toLowerCase() + ".conf"
            )
        );
}

现在可以通过应用程序访问特定于环境的参数，您可以使用ConfigManager获取任何参数，例如：

ConfigManager.modeSpecificConfig.getString("keyname");  
ConfigManager.modeSpecificConfig.getInt("keyname2");