Java配置文件Properties加载

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

/**
 * Created by fubin on 2017/1/12 0012.
 *
 *
 * 配置文件加载与访问
 *
 *
 */
public class PropertiesUtils {

    private static Properties PRO = new Properties();

    static {
        InputStream ins = null;
        try {
            ins = PropertiesUtils.class.getResourceAsStream("/payConfig.properties");
            PRO.load(ins);
        } catch (IOException e) {
            System.out.println("加载连连支付配置文件失败！");
            e.printStackTrace();
        } finally {
            try {
                ins.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static String getConfigValue(String key){
        String value = PRO.getProperty(key);
        return value;
    }

    public static final String OID_PARTNER       = getConfigValue("OID_PARTNER");

    public static final String YT_PUB_KEY       = getConfigValue("YT_PUB_KEY");

    public static final String MD5_KEY       = getConfigValue("MD5_KEY");

    public static final String PLATFORM_DOMAIN = "new.vpfinance.cn";

    public static final String NOTIFY_URL        = getConfigValue("NOTIFY_URL");

    public static final String RETURN_URL        = getConfigValue("RETURN_URL");

    public static final String PRI_KEY_VALUE     = getConfigValue("PRI_KEY_VALUE");

    public static final String SERVER            = getConfigValue("SERVER");

    public static final String TRADER_MD5_KEY    = getConfigValue("TRADER_MD5_KEY");

    public static final String CARD_AND_PAY_NOTIFY  = getConfigValue("CARD_AND_PAY_NOTIFY");

    public static final String CARD_AND_PAY_URL     = getConfigValue("CARD_AND_PAY_URL");

    public static void main(String[] args){
        String value = PropertiesUtils.getConfigValue("TRADER_MD5_KEY");
        System.out.println(value);
        System.out.println(PropertiesUtils.TRADER_MD5_KEY);
    }

}