通用配置文件读取

package com.yrl.common.constant;

import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.ResourceBundle;

public class ConfigConstant {
    private static Map valueMap = new HashMap<>();
    static {
        ResourceBundle ct = ResourceBundle.getBundle("ct");
        Enumeration keys = ct.getKeys();
        while (keys.hasMoreElements()){
            String key = keys.nextElement();
            String value = ct.getString(key);
            valueMap.put(key,value);
        }
    }

    public static String getVal(String key){
        return valueMap.get(key);
    }

    public static void main(String[] args) {
        String val = getVal("ct.cf.caller");
        System.out.println(val);
    }
}