| | |
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| | | } |
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| | | |
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| | | /** |
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| | | * 读取文件某行 |
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| | | * @param inputStream |
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| | | * @param lineIndex 行索引 0based |
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| | | * @return 行文本 |
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| | | * @throws IOException |
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| | | */ |
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| | | public static String readLineAt(InputStream inputStream,int lineIndex) throws IOException { |
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| | | byte[] bytes = inputStream.readAllBytes(); |
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| | | ByteArrayInputStream byteStream = new ByteArrayInputStream(bytes); |
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| | | Charset charset = Charsets.charset(detectFromInputStream(byteStream)); |
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| | | byteStream.reset();//重置，使继续可用 |
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| | | |
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| | | String lineText = ""; |
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| | | try (BufferedReader reader = new BufferedReader(new InputStreamReader(byteStream,charset))) { |
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| | | // 跳过第一行 |
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| | | int current = 0; |
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| | | while(current<=lineIndex && lineText!=null) { |
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| | | lineText = reader.readLine(); |
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| | | current++; |
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| | | } |
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| | | } |
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| | | return lineText; |
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| | | } |
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| | | |
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| | | /** |
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| | | * 从输入流获取文本 |
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| | | * @param ins 束流 |
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| | | * @return 文本字符 |
|---|
