项目由GBK转成UTF-8 遇到原有解析zip发现中文文件名称乱码问题

net.lingala.zip4j

zip4j

1.3.2

package com.multek.ebuy.utils;

import net.lingala.zip4j.model.FileHeader;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.nio.charset.Charset;

import java.util.Enumeration;

import java.util.List;

import java.util.zip.ZipEntry;

import java.util.zip.ZipFile;

//import net.lingala.zip4j.core.ZipFile;

//import net.lingala.zip4j.model.FileHeader;

public class ZipUtil {

/**

* 解压

* @param zipPath

* @param descDir

* @return

*/

public static boolean decompressZip(String zipPath, String descDir) {

File zipFile = new File(zipPath);

boolean flag = false;

File pathFile = new File(descDir);

if (!pathFile.exists()) {

pathFile.mkdirs();

}

ZipFile zip = null;

try {

System.setProperty("sun.zip.encoding", System.getProperty("sun.jnu.encoding"));

// zip = new ZipFile(zipFile, Charset.forName("UTF-8"));//防止中文目录，乱码

String encoding = getEncoding(zipPath);

zip = new ZipFile(zipFile, Charset.forName(encoding));//防止中文目录，乱码

for (Enumeration entries = zip.entries(); entries.hasMoreElements(); ) {

ZipEntry entry = (ZipEntry) entries.nextElement();

String zipEntryName = entry.getName();

InputStream in = zip.getInputStream(entry);

//指定解压后的文件夹+当前zip文件的名称

String outPath = (descDir + "/" + zipEntryName).replace("/", File.separator);

//判断路径是否存在,不存在则创建文件路径

File file = new File(outPath.substring(0, outPath.lastIndexOf(File.separator)));

if (!file.exists()) {

file.mkdirs();

}

//判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压

if (new File(outPath).isDirectory()) {

continue;

}

//保存文件路径信息(可利用md5.zip名称的唯一性，来判断是否已经解压)

OutputStream out = new FileOutputStream(outPath);

byte[] buf1 = new byte[2048];

int len;

while ((len = in.read(buf1)) > 0) {

out.write(buf1, 0, len);

}

in.close();

out.close();

}

flag = true;

//必须关闭，要不然这个zip文件一直被占用着，要删删不掉，改名也不可以，移动也不行，整多了，系统还崩了。

zip.close();

}catch (Exception e) {

e.printStackTrace();

}

return flag;

}

// public static void decompressZip(String source, String target, String targetName) throws Exception {

// try {

// File file = new File(source);

// if (!file.exists() || file.isDirectory()) {

// throw new Exception("将要解压文件不存在或路径不正确！");

// }

//

// file = new File(target + File.separator + targetName);

// if (!file.exists()) {

// file.mkdirs();

// }

// ZipFile zipfile = new ZipFile(source);

// if (!zipfile.isValidZipFile()) {

// throw new Exception("压缩文件不合法,可能被损坏.");

// }

// zipfile.setFileNameCharset("UTF-8");

zipfile.setFileNameCharset("GBK");

// zipfile.extractAll(target + File.separator + targetName);

// } catch (Exception e) {

// e.printStackTrace();

// throw e;

// }

//

//

// }

// 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";

net.lingala.zip4j.core.ZipFile zipFile = new net.lingala.zip4j.core.ZipFile(path);

zipFile.setFileNameCharset(encoding);

Listlist = 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);

// 当从Unicode编码向某个字符集转换时，如果在该字符集中没有对应的编码，则得到0x3f(即问号字符?)

// 从其他字符集向Unicode编码转换时，如果这个二进制数在该字符集中没有标识任何的字符，则得到的结果是0xfffd

if ((int) c == 0xfffd) {

// 存在乱码

return true;

}

}

return false;

}

}

https://blog.csdn.net/qq_34122822/article/details/90902815