java 解压缩中文乱码问题

内容转载自https://blog.csdn.net/u014298330/article/details/79976983

引入zip4j

import net.lingala.zip4j.core.ZipFile;

public static void unZip( String zipPath, String destDir ) throws Exception
    {
        ZipFile zipFile = new ZipFile( zipPath ) ;
        zipFile.setFileNameCharset( getEncoding( zipPath ) ) ;
        zipFile.extractAll( destDir ) ;
    }

    @SuppressWarnings( "unchecked" )
    private static String getEncoding( String path ) throws Exception
    {

        String encoding = "GBK" ;
        ZipFile zipFile = new ZipFile( path ) ;
        zipFile.setFileNameCharset( encoding ) ;
        List<FileHeader> list = zipFile.getFileHeaders() ;
        for( int i = 0; i < list.size(); i++ )
        {
            FileHeader fileHeader = list.get( i ) ;
            String fileName = fileHeader.getFileName();
            if( isMessyCode( fileName ) )
            {
                encoding = "UTF-8" ;
                break ;
            }
        }
        return encoding ;
    }

    private static boolean isMessyCode( String str )
    {
        for( int i = 0; i < str.length(); i++ )
        {
            char c = str.charAt( i ) ;
            if( (int)c == 0xfffd )
            {
                // 存在乱码
                return true ;
            }
        }
        return false ;
    }

ps：zipPath 是压缩包的位置   destDir 为解压位置