boost gzip_compressor and gzip_decompressor

boost gzip_compressor and gzip_decompressor

本文关键字：gzip decompressor and compressor boost      更新时间：2023-10-16

我使用boost的gzip_compressor和'gzip_expressor'来压缩一些字符串。我正在压缩像这样的字符串

string compressedString;
{
    filtering_ostream out;
    out.push(gzip_compressor(gzip_params(gzip::best_compression)));
    out.push(boost::iostreams::back_inserter(compressedString));
    out.write(stringToBeCompressed.c_str(), stringToBeCompressed.size());
}

它工作得很好，但我无法解压缩。这是我的代码

std::string decompressedString;
{
    filtering_ostream out;
    out.push(gzip_decompressor());
    out.push(boost::iostreams::back_inserter(decompressedString));
    out.write(compressedString.c_str(), compressedString.size());
}

我做错了什么？

提前谢谢！

我找到了解决这个问题的方法。这是工作代码。

压缩部件

std::string compressedString;
{
    filtering_ostream compressingStream;
    compressingStream.push(boost::iostreams::gzip_compressor(gzip_params(gzip::best_compression)));
    compressingStream.push(boost::iostreams::back_inserter(compressedString));
    compressingStream << stringToBeCompressed;
    boost::iostreams::close(compressingStream);
}

减压部分

std::string decompressedString;
{
    boost::iostreams::filtering_ostream decompressingStream;
    decompressingStream.push(boost::iostreams::gzip_decompressor());
    decompressingStream.push(boost::iostreams::back_inserter(decompressedString));
    decompressingStream << stringToBeDecompressed;
    boost::iostreams::close(decompressingStream);
}
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