JAVA读取properties

 InputStream is=null;  
        OutputStream os=null;
        
        Properties props = new Properties();  
        InputStream in = null;  
        
        //读取properties
        try {  
            //第一种，通过类加载器进行获取properties文件流  
            //in = PropertyUtil.class.getClassLoader().getResourceAsStream("sysConfig.properties");  
            //第二种，通过类进行获取properties文件流  
            in = CardUtil.class.getResourceAsStream("/card.properties");  
            props.load(in);  
            props.getProperty("key");
        } catch (FileNotFoundException e) {  
            //logger.error("sysConfig.properties文件未找到"); 
            e.printStackTrace();
        } catch (IOException e) {  
            //logger.error("出现IOException");
            e.printStackTrace();
        } finally {  
            try {  
                if(null != in) {  
                    in.close();  
                }  
            } catch (IOException e) {  
                //logger.error("sysConfig.properties文件流关闭出现异常");  
                e.printStackTrace();
            }  
        }  
       
        String urlAll=null;
        String NewmyFileFileName=null;
        try {  
            is = new BufferedInputStream(new FileInputStream(myFile)); 
            String uuid = UUID.randomUUID().toString().replaceAll("-", "");
            NewmyFileFileName=uuid+myFileFileName.substring(myFileFileName.lastIndexOf("."));
            urlAll=props.getProperty("toPath")+NewmyFileFileName;
            os = new BufferedOutputStream(new FileOutputStream(urlAll));  
              
            byte[] buffer = new byte[1024];  
            int len=0;  
            while((len=is.read(buffer))>0){  
                os.write(buffer,0,len);  
            }     
        }finally{  
            if(is !=null){is.close();}  
            if(os!=null){os.close();}  
        }