如何使用Java阅读文本中的第二行

时间:2018-04-10 22:53:40

标签: java parsing url methods text-files

我正在尝试创建一个简单的命令行程序,该程序将根据返回的标记确定播放列表是媒体播放列表还是主播。不幸的是,这两种类型的播放列表第一行标签是相同的,所以我想知道他们是否可以调整我的代码来读取从第二行开始的文本?

private static String getPlaylistUrl(String theUrl) throws 
	FileNotFoundException, MalformedURLException, IOException{
		String content = "";
			//Creates a url variable 
			URL url = new URL(theUrl);
			//Cretes a urlConnection variable 
			URLConnection urlConnection = (HttpURLConnection) url.openConnection();
			//Wraps the urlConnection in a BufferedReader 
			BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
			String line;
			
			while ((line = bufferedReader.readLine()) != null) {
				content += line + "\n";
			}
			bufferedReader.close();
	
		
	
		return content;
		
	}

3 个答案:

答案 0 :(得分:2)

只需在循环开始之前阅读第一行。

答案 1 :(得分:0)

private static String getPlaylistUrl(String theUrl) throws IOException {
    try (InputStream is = new URL(theUrl).openConnection().getInputStream();
         BufferedReader reader = new BufferedReader(new InputStreamReader(is));
         Stream<String> stream = reader.lines()) {
        return stream
                // skip the first line
                .skip(1)
                // join all other lines using a new line delimiter
                .collect(Collectors.joining("\n"));
    }
}

答案 2 :(得分:-1)

像这样跳过标题

String line;
bool IsHeader=true;

        while ((line = bufferedReader.readLine()) != null) {
        if (IsHeader){
            IsHeader=false; //skip header..

        }else{
        content += line + "\n";
        }

        }
        bufferedReader.close();