将多个文件压缩成zip文件_多个inputstream 压缩成zip-优快云博客

该篇博客详细介绍了如何使用Java的IO和ZipOutputStream类将多个文件压缩成ZIP文件，包括创建临时文件、初始化输出流、添加ZipEntry以及关闭流等关键步骤。适合Java初学者和需要处理文件压缩的开发者参考。

import java.io.File;
import java.io.IOException;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
 * 将多个文件压缩成zip文件
 *
 * @param fileList 文件列表
 * @param zipName 压缩后的文件名
 * @throws IOException
 */
public void toZipFile(List<File> fileList, String zipName) throws IOException {
    String tmpPath  = System.getProperty("java.io.tmpdir");
    String tmpZipName = tmpPath + File.separator + zipName;
    System.out.println(tmpPath);
    FileOutputStream fileOutputStream = null;
    ZipOutputStream zipOutputStream = null;
    InputStream inputStream = null;
    BufferedOutputStream bufferedOutputStream = null;
    BufferedInputStream bufferedInputStream = null;
    try {
        fileOutputStream = new FileOutputStream(tmpZipName);
        bufferedOutputStream = new BufferedOutputStream(fileOutputStream);
        zipOutputStream = new ZipOutputStream(bufferedOutputStream);
        for (int index = 0; index < fileList.size(); index++) {
            inputStream = new FileInputStream(fileList.get(index));
            bufferedInputStream = new BufferedInputStream(inputStream);
            ZipEntry zipEntry = new ZipEntry(fileList.get(index).getName());
            zipOutputStream.putNextEntry(zipEntry);
            int len;
            byte[] buffer = new byte[1024];
            while ((len = bufferedInputStream.read(buffer)) > 0) {
                zipOutputStream.write(buffer, 0, len);
            }
        }
    } finally {
        if (zipOutputStream != null) {
            zipOutputStream.closeEntry();
            zipOutputStream.close();
        }
        if (bufferedOutputStream != null) {
            bufferedOutputStream.flush();
            bufferedOutputStream.close();
        }
        if (bufferedInputStream != null) {
            bufferedInputStream.close();
        }
        if (inputStream != null) {
            inputStream.close();
        }
        if (fileOutputStream != null) {
            fileOutputStream.close();
        }
    }
}

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