加载src下的properties文件

public class ProsUtil {  
    private static Log log = LogFactory.getLog(ProsUtil.class);  
    private static Properties pros;  
    static {  
        pros = new Properties();  
        try {  
            pros.load(ProsUtil.class.getClassLoader().getResourceAsStream("sql.properties"));  
            log.info("--->加载sql.properties成功!");  
        } catch (Exception e) {  
            log.error(e.getMessage());  
        }  
    }  
 
    public static String getParameterValue(String key) {  
        return pros.getProperty(key);  
    }  
}