实现代码如下

import java.util.Properties;

import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.support.EncodedResource;
import org.springframework.core.io.support.PropertiesLoaderUtils;

public class PropertiesLoader {

	public static Properties getPro(String pathLocation){
		Properties pro = null;
		try{
			EncodedResource encodedResource = new EncodedResource(new ClassPathResource(pathLocation), "utf-8");
			pro = PropertiesLoaderUtils.loadProperties(encodedResource);
		}catch (Exception e) {
		
		}
		if(pro == null){
			pro = new Properties();
		}
		return pro;
		
	}
	
	public static void main(String[] args) {
		Properties pro = PropertiesLoader.getPro("file:./config/custom.properties");
	}
	
}