Java读取txt文件

<span style="white-space:pre">	</span>@SuppressWarnings("resource")
	public static void getTxt(String filePath) {
		
		InputStreamReader inStreamReader=null;

		try {
			File file = new File(filePath);

			if (!file.isFile() || !file.exists()) {
				System.out.println("找不到指定文件！");
				return;
				
			} else {
				inStreamReader = new InputStreamReader(new FileInputStream(file));
				BufferedReader bufferedReader=new BufferedReader(inStreamReader);
				
				String lineTxt=null;
				int count = 0;
				while((lineTxt=bufferedReader.readLine())!=null){
					
					//截取
					int lineLength=lineTxt.length();
					String subLineTxt=lineTxt.substring(1, lineLength-5);
					
					//分离
					String[] subTxts=subLineTxt.split("_");
					int subTxtsLength=subTxts.length;
					
					//正则表达式判断最后一个是否为数字
					String lastTxt=subTxts[subTxtsLength-1];
					if(!lastTxt.matches("\\d*")){
						count++;
						System.out.println(lineTxt);
					}
				}
				System.out.println("总共有"+count);
				
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			
			//关闭InputStream
			if(inStreamReader!=null){
				try {
					inStreamReader.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
	}