是否有任何用于二进制文件解析的 Java 框架？
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Are there any Java Frameworks for binary file parsing?
提问by Kosi2801
My problem is, that I want to parse binary files of different types with a generic parser which is implemented in JAVA. Maybe describing the file format with a configuration file which is read by the parser or creating Java classes which parse the files according to some sort of parsing rules.
我的问题是，我想使用在 JAVA 中实现的通用解析器来解析不同类型的二进制文件。也许用解析器读取的配置文件来描述文件格式，或者创建根据某种解析规则解析文件的 Java 类。
I have searched quite a bit on the internet but found almost nothing on this topic.
我在互联网上搜索了很多，但几乎没有找到关于这个主题的任何内容。
What I have found are just things which deal with compiler-generators (Jay, Cojen, etc.) but I don't think that I can use them to generate something for parsing binary files. But I could be wrong on that assumption.
我发现的只是与编译器生成器（Jay、Cojen 等）有关的东西，但我认为我不能使用它们来生成用于解析二进制文件的东西。但我的假设可能是错误的。
Are there any frameworks which deal especially with easy parsing of binary files or can anyone give me a hint how I could use parser/compiler-generators to do so?
是否有任何框架可以特别处理二进制文件的简单解析，或者任何人都可以给我一个提示，我可以如何使用解析器/编译器生成器来做到这一点？
Update: I'm looking for something where I can write a config-file like
更新：我正在寻找可以编写配置文件的东西，例如
file:
header: FIXED("MAGIC")
body: content(10)
content:
value1: BYTE
value2: LONG
value3: STRING(10)
and it generates automatically something which parses files which start with "MAGIC", followed by ten times the content-package (which itself consists of a byte, a long and a 10-byte string).
它会自动生成一些解析以“MAGIC”开头的文件，然后是十倍的内容包（它本身由一个字节、一个长字符串和一个 10 字节字符串组成）。
Update2: I found something comparable what I'm looking for, "Construct", but sadly this is a Python-Framework. Maybe this helps someone to get an idea, what I'm looking for.
更新 2：我发现了一些与我正在寻找的类似的东西，“构造”，但遗憾的是，这是一个 Python 框架。也许这有助于某人得到一个想法，我正在寻找什么。
回答by Wilfred Springer
Using Preon:
使用Preon：
public class File {
@BoundString(match="MAGIC")
private String header;
@BoundList(size="10", type=Body.class)
private List<Body> body;
private static class Body {
@Bound
byte value1;
@Bound
long value2;
@BoundString(size="10")
String value3;
}
}
Decoding data:
解码数据：
Codec<File> codec = Codecs.create(File.class);
File file = codecs.decode(codec, buffer);
Let me know if you are running into problems.
如果您遇到问题，请告诉我。
回答by Peter Lawrey
I have used DataInputStream for reading binary files and I write the rules in Java. ;) Binary files can have just about any format so there is no general rule for how to read them.
我使用 DataInputStream 读取二进制文件，并用 Java 编写规则。;) 二进制文件几乎可以有任何格式，因此没有关于如何读取它们的一般规则。
Frameworks don't always make things simpler. In your case, the description file is longer than the code to just read the data using a DataInputStream.
框架并不总是让事情变得更简单。在您的情况下，描述文件比仅使用 DataInputStream 读取数据的代码长。
public static void parse(DataInput in) throws IOException {
// file:
// header: FIXED("MAGIC")
String header = readAsString(in, 5);
assert header.equals("MAGIC");
// body: content(10)
// ?? not sure what this means
// content:
for(int i=0;i<10;i++) {
// value1: BYTE
byte value1 = in.readByte();
// value2: LONG
long value2 = in.readLong();
// value3: STRING(10)
String value3 = readAsString(in, 10);
}
}
public static String readAsString(DataInput in, int len) throws IOException {
byte[] bytes = new byte[len];
in.readFully(bytes);
return new String(bytes);
}
If you want to have a configuration file you could use a Java Configuration File. http://www.google.co.uk/search?q=java+configuration+file
如果你想要一个配置文件，你可以使用 Java 配置文件。http://www.google.co.uk/search?q=java+configuration+file
回答by Ben Reeves
Google's Protocol Buffers
Google 的协议缓冲区
回答by Igor Maznitsa
I have been developing a framework for Java which allows to parse binary data https://github.com/raydac/java-binary-block-parserin the case you should just describe structure of your binary file in pseudolanguage
我一直在为 Java 开发一个框架，它允许解析二进制数据https://github.com/raydac/java-binary-block-parser如果你应该只用伪语言描述二进制文件的结构
回答by stepancheg
回答by asalamon74
You can parse binary files with parsers like JavaCC. Hereyou can find a simple example. Probably it's a bit more difficult than parsing text files.
您可以使用JavaCC 之类的解析器解析二进制文件。在这里你可以找到一个简单的例子。可能比解析文本文件要困难一些。
