package com.huawei.pms.realtime.util;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.apache.log4j.Logger;
/**
*
* 用于处理 properties 文件，从中获得配置信息
*
* PropertiesOperator
* @author fhuan123
* 2009-7-6上午09:03:50
* @phone 13733836515
*/
public class PropertiesOperator
{
private static Logger logger = Logger.getLogger(PropertiesOperator.class
.getName());
/**
* @describe 从固定的配置文件中，根据指定的 key 来查找对应的属性
*
* @param key 对应的键
*
*/
public static String getValueByKey(String key)
{
String result = null;
Properties p = new Properties();
InputStream in = PropertiesOperator.class.getClassLoader()
.getResourceAsStream("config.properties");
try
{
p.load(in);
result = p.getProperty(key);
}
catch (IOException e)
{
logger.debug("check host --- load properties happend err");
e.printStackTrace();
}
finally
{
try
{
in.close();
}
catch (Exception e)
{
logger.error(e) ;
}
}
return result;
}
/**
* @describe 根据指定的配置文件名和Key 返回 key 的属性值
* @param name 配置文件名
* @param key 键
* @return 返回 属性值
*/
public static String getValueByKey(String name, String key)
{
String result = null;
Properties p = new Properties();
InputStream in = PropertiesOperator.class.getClassLoader()
.getResourceAsStream(name);
try
{
p.load(in);
result = p.getProperty(key);
}
catch (IOException e)
{
logger.debug("check host --- load properties happend err");
e.printStackTrace();
}
finally
{
try
{
in.close();
}
catch (Exception e)
{
logger.error(e) ;
}
}
return result;
}
public static void main(String[] args)
{
// System.out.println(getValueByKey("INFO_FILE_PATH")) ;
// System.out.println(getValueByKey("masterIp")) ;
// System.out.println(getValueByKey("masterPort")) ;
// System.out.println(getValueByKey("configservice.properties","hostName")) ;
}
}
相关资源：Java 读取资源文件
