在spring容器初始化之前从数据库加载参数

package com.hisign.sso.web.listener;

import java.util.Properties;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.hisign.sdk.config.SysConfigLoader;
import com.hisign.sso.api.constant.UAOPConstant;
import com.hisign.sso.web.common.ConfigProperties;


public class LoadConfigListener implements ServletContextListener {

	
	private final Logger logger = LoggerFactory.getLogger(getClass());

	
	@Override
	public void contextInitialized(ServletContextEvent sce) {
		Properties pro = ConfigProperties.getInstance().getProps();
		String isSsoRmi = pro.getProperty("is_sso_rmi");
		if ("0".equals(isSsoRmi)) {
			logger.info("LoadConfigListener contextInitialized custom setting");
			System.setProperty("protocol", "multicast");
			System.setProperty("zkconnect", "224.5.6.7:1234");
		} else {
			// TODO Auto-generated method stub
			SysConfigLoader.getInstance().loadSysConfig(UAOPConstant.SYSTEMID);
			System.setProperty("protocol", "zookeeper");
			logger.info("LoadConfigListener contextInitialized");
		}
	}

	
	@Override
	public void contextDestroyed(ServletContextEvent sce) {
		// TODO Auto-generated method stub
		logger.info("LoadConfigListener contextDestroyed");
	}

}