java 编程思想 GZip(Zip) 格式压缩解压缩

GZIPOutputStream 只能支持 OutputStream对象，不能接受Writer 对象，会中文乱码

GZIPInputStream  支持 Reader字符流

package io;

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

public class GZipcompress {
    
    
    public static void main(String[] args) throws IOException {
        String fileName = "src\io\GZipcompress.java";
        BufferedReader in = new BufferedReader(new FileReader(fileName)   );
        
        BufferedOutputStream out  = new BufferedOutputStream(
                                        new GZIPOutputStream(
                                                new FileOutputStream("test.gz"))
                                        );
        
        System.out.println("write file");
        int c ;
        
        while ((c = in.read()) != -1) {
            out.write(c);
        }//GZIPOutputStream只支持字节对象,一个一个写（中文乱码）

        in.close();
        out.close();
        
        //-------------------read--------------
        System.out.println("读取文件 file ");
        
        BufferedReader in2 = new BufferedReader(
                new InputStreamReader(new GZIPInputStream(
                                new FileInputStream("test.gz"))));
        // 支持字符对象
        String s ;
        while ( (s = in2.readLine())!= null ) {
            System.out.println(s);
        }
        
        
        
    }
    
    
    
    

}

 结果 及 文件结构