将Java Deflater / Inflater与自定义词典一起使用会导致IllegalArgumentException
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以下代码基于javadocs.java.util.zip.Deflater中给出的示例。我所做的唯一更改是创建一个称为dict的字节数组，然后使用setDictionary（byte []）方法在Deflater和Inflater实例上设置字典。
我看到的问题是，当我使用与Deflater所使用的数组完全相同的数组调用Inflater.setDictionary（）时，会收到IllegalArgumentException。
这是有问题的代码：
import java.util.zip.Deflater;
import java.util.zip.Inflater;
public class DeflateWithDictionary {
public static void main(String[] args) throws Exception {
String inputString = \"blahblahblahblahblah??\";
byte[] input = inputString.getBytes(\"UTF-8\");
byte[] dict = \"blah\".getBytes(\"UTF-8\");
// Compress the bytes
byte[] output = new byte[100];
Deflater compresser = new Deflater();
compresser.setInput(input);
compresser.setDictionary(dict);
compresser.finish();
int compressedDataLength = compresser.deflate(output);
// Decompress the bytes
Inflater decompresser = new Inflater();
decompresser.setInput(output, 0, compressedDataLength);
decompresser.setDictionary(dict); //IllegalArgumentExeption thrown here
byte[] result = new byte[100];
int resultLength = decompresser.inflate(result);
decompresser.end();
// Decode the bytes into a String
String outputString = new String(result, 0, resultLength, \"UTF-8\");
System.out.println(\"Decompressed String: \" + outputString);
}
}
没有找到相关结果
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冉案
import java.util.zip.Deflater; import java.util.zip.Inflater; public class DeflateWithDictionary { public static void main(String[] args) throws Exception { String inputString = \"blahblahblahblahblah??\"; byte[] input = inputString.getBytes(\"UTF-8\"); byte[] dict = \"blah\".getBytes(\"UTF-8\"); // Compress the bytes byte[] output = new byte[100]; Deflater compresser = new Deflater(); compresser.setInput(input); compresser.setDictionary(dict); compresser.finish(); int compressedDataLength = compresser.deflate(output); // Decompress the bytes Inflater decompresser = new Inflater(); decompresser.setInput(output, 0, compressedDataLength); byte[] result = new byte[100]; decompresser.inflate(result); decompresser.setDictionary(dict); int resultLength = decompresser.inflate(result); decompresser.end(); // Decode the bytes into a String String outputString = new String(result, 0, resultLength, \"UTF-8\"); System.out.println(\"Decompressed String: \" + outputString); } }