资源文件Properties的读取

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

import org.apache.log4j.Logger;


/**
 * 用于加载jbbc_systemManager.properties文件
 * @author Administrator
 */
public class ReadProperties {
    
    private static Properties prop = null;
    private static String propFileName = "/jdbc_systemSystem.properties"; // 资源文件读取位置
    private static Logger log = Logger.getLogger(ReadProperties.class); // 日志文件管理

    private synchronized static void loadProperties() {
        prop = new Properties();
        try {
            InputStream input = ReadProperties.class
                    .getResourceAsStream(propFileName);
            prop.load(input);
        } catch (IOException e) {
            log.info("读取资源文件失败，" + e.toString());
        }
    }

    public String getProperty(String propName) {
        loadProperties();
        return prop.getProperty(propName);
    }

    public void setProperty(String propKey, String value) {
        loadProperties();
        prop.setProperty(propKey, value);
    }

    public String getPropFileName() {
        return propFileName;
    }

    public static void setPropFileName(String propFileName) {
        ReadProperties.propFileName = propFileName;
    }
    
}