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我正在尝试使用此处的一些给定示例在两个字符串之间查找文本，我可以在特定情况下这样做，但是当涉及到十六进制（使用相同的标识符）时，我遇到了错误。请指导我在下面给出的示例和错误之间获得价值...注意-我有大文本（完整的文本文件大约 9999 字）我只提供了正常工作的示例文本

private static void modifyText() {
       String str1 = "private final byte[] record1 = new byte[]{sdfjsdkhfkjsdf hgb sdjfkhsdkfsdf |sdfjksdhfjksd sdf sdkjfhsdkf | sdkjfh hgb sdkjfdshfks|}";
          String result1 = str1.substring(str1.indexOf("byte[] record1 = new byte[]{") , str1.indexOf("}"));
          System.out.println("\n found1\n"+result1);

      String pattern1 = "record1 = new byte[]{";
      String pattern2 = "}";

       String text= "private final byte[] record1 = new byte[]{\r\n (byte)0x70,(byte)0x80}"; //**for small text it is working**   

      String result = text.substring(text.indexOf(pattern1) + 1, text.indexOf(pattern2));

      System.out.println("\n found2\n"+result);
  }

found1 打印完美低于 byte[] record1 = new byte[]{sdfjsdkhfkjsdf hgb sdjfkhsdkfsdf |sdfjksdhfjksd sdf sdkjfhsdkf | sdkjfh hgb sdkjfdshfks|

虽然发现 2 说错误 -------- java.lang.StringIndexOutOfBoundsException: String index out of range: -799 at java.lang.String.substring(Unknown Source)

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