java 分割字符串

原创于 2025-12-11 10:31:42 发布 · 58 阅读

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#java #开发语言

  public static void main(String[] args) {
        // 从 classpath 读取资源文件
        try (InputStream is = MerchantNoTest.class.getClassLoader()
                .getResourceAsStream("merchant.txt")) {
            assert is != null;
            try (BufferedReader reader = new BufferedReader(
                         new InputStreamReader(is, StandardCharsets.UTF_8))) {

                List<String> merchantNos = reader.lines()
                        .map(String::trim)
                        .filter(s -> !s.isEmpty())
                        .collect(Collectors.toList());

                String inClause = merchantNos.stream()
                        .map(no -> "'" + no + "'")
                        .collect(Collectors.joining(", "));

                System.out.println(" (" + inClause + ")");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }