Java将byte流转换成zip文件_java zip文件的压缩与解压

可以使用Java内置的ZipInputStream和ZipOutputStream类来进行zip文件的压缩与解压缩。

压缩文件：

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipFileDemo {
    public static void main(String[] args) throws Exception {
        // 创建ZipOutputStream对象
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream("output.zip"));
        // 添加ZipEntry对象
        out.putNextEntry(new ZipEntry("input.txt"));
        // 读取文件并写入输出流
        FileInputStream in = new FileInputStream("input.txt");
        byte[] buffer = new byte[1024];
        int len;
        while ((len = in.read(buffer)) > 0) {
            out.write(buffer, 0, len);
        }
        // 关闭输入输出流
        in.close();
        out.closeEntry();
        out.close();
    }
}

解压文件：

import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class UnZipFileDemo {
    public static void main(String[] args) throws Exception {
        // 创建ZipInputStream对象
        ZipInputStream zipIn = new ZipInputStream(UnZipFileDemo.class.getResourceAsStream("output.zip"));
        // 读取ZipEntry对象并解压
        ZipEntry entry = zipIn.getNextEntry();
        FileOutputStream out = new FileOutputStream("output.txt");
        byte[] buffer = new byte[1024];
        int len;
        while ((len = zipIn.read(buffer)) > 0) {
            out.write(buffer, 0, len);
        }
        // 关闭输入输出流
        out.close();
        zipIn.closeEntry();
        zipIn.close();
    }
}

以上代码仅供参考，具体实现还需要根据实际需求进行调整。