Solution to Java file compression garbled code

1. The problem of Chinese garbled characters in file compression

1. The solution to the garbled Chinese file names

For compressed files, when the file name is Chinese When using the JDK API's built-in classes (java.util.zip.ZipEntry; java.util.zip.ZipOutputStream;) for compression, after the compression is completed, you can see that the file name in the compressed package is garbled (the file name is garbled). There is no garbled content problem).

At this timeThis problem can be solved by simply using the classes in ant.jar in ANT (org.apache.tools.zip.ZipEntry; org.apache.tools.zip.ZipOutputStream;).

Recommended: java video tutorial

2. ant.jar dependency

<!-- ant.jar 用于解决文件解压缩乱码问题 -->
<dependency>
    <groupId>ant</groupId>
    <artifactId>ant</artifactId>
    <version>1.6.5</version>
</dependency>

2. JAVA implementation of ZIP compression source code

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * zip压缩工具包
 * @Class ZipUtils
 */
public class ZipUtils {

    private final static Logger logger = LoggerFactory.getLogger(ZipUtils.class);

    private static final int BUFFER_SIZE = 2 * 1024;

    /**
     * 压缩成ZIP
     * @param srcFilePath 压缩文件路径
     * @param tarFilePath 目标ZIP输出路径
     * @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
     *            false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
     * @throws Exception 压缩失败会抛出异常
     */
    public static boolean toZip(String srcFilePath, String tarFilePath, boolean KeepDirStructure) throws Exception {
        boolean isCompressSuccess = false;
        long start = System.currentTimeMillis();
        FileOutputStream fos = null;
        ZipOutputStream zos = null;
        try {
            File sourceFile = new File(srcFilePath);
            if (!sourceFile.exists()) {
                throw new FileNotFoundException("待压缩文件 [" + srcFilePath + "]不存在.");
            }
            fos = new FileOutputStream(new File(tarFilePath));
            zos = new ZipOutputStream(fos);
            // 设置压缩的编码，解决压缩路径中的中文乱码问题
            zos.setEncoding("UTF-8");            
            compress(sourceFile, zos, sourceFile.getName(), KeepDirStructure);
            isCompressSuccess = true;
            long end = System.currentTimeMillis();
            logger.info("【文件压缩】 压缩完成，耗时：{} ms", (end - start));
        } catch (Exception e) {
            logger.error("【文件压缩】 压缩失败", e);
            throw new RuntimeException("文件压缩失败", e);
        } finally {
            closeOutPutStream(zos);
            closeOutPutStream(fos);
        }
        return isCompressSuccess;
    }

    /**
     * 递归压缩方法
     * @param sourceFile 源文件
     * @param zos zip输出流
     * @param name 压缩后的名称
     * @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
     *            false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
     * @throws Exception
     */
    private static void compress(File sourceFile, ZipOutputStream zos, String name, boolean KeepDirStructure)
            throws Exception {
        byte[] buf = new byte[BUFFER_SIZE];
        if (sourceFile.isFile()) {
            // 向zip输出流中添加一个zip实体，构造器中name为zip实体的文件的名字
            zos.putNextEntry(new ZipEntry(name));
            // copy文件到zip输出流中
            int len;
            FileInputStream in = new FileInputStream(sourceFile);
            while ((len = in.read(buf)) != -1) {
                zos.write(buf, 0, len);
            }
            zos.closeEntry();
            in.close();
        } else {
            File[] listFiles = sourceFile.listFiles();
            if (listFiles == null || listFiles.length == 0) {
                // 需要保留原来的文件结构时,需要对空文件夹进行处理
                if (KeepDirStructure) {
                    // 空文件夹的处理
                    zos.putNextEntry(new ZipEntry(name + "/"));
                    // 没有文件，不需要文件的copy
                    zos.closeEntry();
                }
            } else {
                for (File file : listFiles) {
                    // 判断是否需要保留原来的文件结构
                    if (KeepDirStructure) {
                        // 注意：file.getName()前面需要带上父文件夹的名字加一斜杠,
                        // 不然最后压缩包中就不能保留原来的文件结构,即：所有文件都跑到压缩包根目录下了
                        compress(file, zos, name + "/" + file.getName(), KeepDirStructure);
                    } else {
                        compress(file, zos, file.getName(), KeepDirStructure);
                    }
                }
            }
        }
    }

    /**
     * 释放资源
     * @Title closeOutPutStream
     * @param ops
     * @return void
     */
    public static void closeOutPutStream(OutputStream ops) {
        if (ops != null) {
            try {
                ops.close();
            } catch(IOException ex) {
                logger.error("关闭输出流失败", ex);
            }
        }
    }

}

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