java解压缩zip

Posted 2020-10-16 张倩要好好学习

依赖的包：

<!-- https://mvnrepository.com/artifact/org.apache.ant/ant -->
<dependency>
<groupId>org.apache.ant</groupId>
<artifactId>ant</artifactId>
<version>1.8.2</version>
</dependency>

 

package com.jd.dlink.service.utils;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;

/**
* 解压Zip文件工具类
*
* @author zhangqian
*
*/
public class unzipUtil {
private static final int buffer = 2048;

/**
* 解压Zip文件
*
* @param path
* 文件目录
*/
public static void unZip(String path) {
int count = -1;
String savepath = "";

File file = null;
InputStream is = null;
FileOutputStream fos = null;
BufferedOutputStream bos = null;

savepath = path.substring(0, path.lastIndexOf("\\")) + File.separator; // 保存解压文件目录
new File(savepath).mkdir(); // 创建保存目录
ZipFile zipFile = null;
try {
zipFile = new ZipFile(path, "gbk"); // 解决中文乱码问题
Enumeration<?> entries = zipFile.getEntries();

while (entries.hasMoreElements()) {
byte buf[] = new byte[buffer];

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

String filename = entry.getName();
boolean ismkdir = false;
if (filename.lastIndexOf("/") != -1) { // 检查此文件是否带有文件夹
ismkdir = true;
}
filename = savepath + filename;

if (entry.isDirectory()) { // 如果是文件夹先创建
file = new File(filename);
file.mkdirs();
continue;
}
file = new File(filename);
if (!file.exists()) { // 如果是目录先创建
if (ismkdir) {
new File(filename.substring(0, filename.lastIndexOf("/"))).mkdirs(); // 目录先创建
}
}
file.createNewFile(); // 创建文件

is = zipFile.getInputStream(entry);
fos = new FileOutputStream(file);
bos = new BufferedOutputStream(fos, buffer);

while ((count = is.read(buf)) > -1) {
bos.write(buf, 0, count);
}
bos.flush();
bos.close();
fos.close();

is.close();
}

zipFile.close();

} catch (IOException ioe) {
ioe.printStackTrace();
} finally {
try {
if (bos != null) {
bos.close();
}
if (fos != null) {
fos.close();
}
if (is != null) {
is.close();
}
if (zipFile != null) {
zipFile.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}

public static void main(String[] args) {
unZip("E:\\jd\\东联\\资源包问题相关.zip");
// String f = "E:\\jd\\东联";
// File file = new File(f);
// String[] test = file.list();
// for (int i = 0; i < test.length; i++) {
// System.out.println(test[i]);
// }
//
// System.out.println("------------------");
//
// String fileName = "";
//
// File[] tempList = file.listFiles();
// for (int i = 0; i < tempList.length; i++) {
// if (tempList[i].isFile()) {
// System.out.println("文 件：" + tempList[i]);
//
// fileName = tempList[i].getName();
//
// System.out.println("文件名：" + fileName);
// }
// if (tempList[i].isDirectory()) {
// System.out.println("文件夹：" + tempList[i]);
// }
// }
}
}