java使用ant實現Zip文件壓縮、解壓縮Zip文件。
單個文件壓縮成Zip文件,多個文件壓縮成Zip文件。
可以壓縮大文件。
需要使用到ant.jar文件,放到lib目錄下。
ant.jar下載:http://download.csdn.net/detail/xinxin19881112/8906157
Zip.java
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.zip.ZipOutputStream;
import org.apache.tools.zip.ZipEntry;
/**
* ZIP操作工具類
*/
public class Zip {
/**
* 壓縮文件列表到某ZIP文件
* @param zipFilename 要壓縮到的ZIP文件
* @param paths 文件列表,多參數
* @throws Exception
*/
public static void compress(String zipFilename, String... paths)
throws Exception {
compress(new FileOutputStream(zipFilename), paths);
}
/**
* 壓縮文件列表到輸出流
* @param os 要壓縮到的流
* @param paths 文件列表,多參數
* @throws Exception
*/
public static void compress(OutputStream os, String... paths)
throws Exception {
ZipOutputStream zos = new ZipOutputStream(os);
for (String path : paths) {
if (path.equals(""))
continue;
java.io.File file = new java.io.File(path);
if (file.exists()) {
if (file.isDirectory()) {
zipDirectory(zos, file.getPath(), file.getName()
+ File.separator);
} else {
zipFile(zos, file.getPath(), "");
}
}
}
zos.close();
}
private static void zipDirectory(ZipOutputStream zos, String dirName,
String basePath) throws Exception {
File dir = new File(dirName);
if (dir.exists()) {
File files[] = dir.listFiles();
if (files.length > 0) {
for (File file : files) {
if (file.isDirectory()) {
zipDirectory(zos, file.getPath(), basePath
+ file.getName().substring(
file.getName().lastIndexOf(
File.separator) + 1)
+ File.separator);
} else
zipFile(zos, file.getPath(), basePath);
}
} else {
ZipEntry ze = new ZipEntry(basePath);
zos.putNextEntry(ze);
}
}
}
private static void zipFile(ZipOutputStream zos, String filename,
String basePath) throws Exception {
File file = new File(filename);
if (file.exists()) {
FileInputStream fis = new FileInputStream(filename);
ZipEntry ze = new ZipEntry(basePath + file.getName());
zos.putNextEntry(ze);
byte[] buffer = new byte[8192];
int count = 0;
while ((count = fis.read(buffer)) > 0) {
zos.write(buffer, 0, count);
}
fis.close();
}
}
}
TestCompress.java
import java.io.FileOutputStream;
import com.xx.commmon.Zip;
/**
* 壓縮文件測試
*/
public class TestCompress {
public static void main(String[] args) {
// 要壓縮的文件列表
String path01 = "E:\\下載\\cn_windows_8_x86_dvd_915414.iso";
String path02 = "e:\\PPT模版_V0.1.potx";
try {
FileOutputStream os = new FileOutputStream("e:\\測試.zip"); // 輸出的ZIP文件流
Zip.compress(os, path01);
} catch (Exception e) {
e.printStackTrace();
}
}
}
TestEctractZip.java
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
/**
* 解壓縮測試
*/
public class TestEctractZip {
@SuppressWarnings( { "unchecked", "static-access" })
public static void main(String[] args) {
TestEctractZip z = new TestEctractZip();
ArrayList<String> a = z.Ectract("C:\\a.zip", "C:\\tmp\\"); // 返回解壓縮出來的文件列表
for(String s : a){
System.out.println(s);
}
}
/**
* 解壓縮
* @param sZipPathFile 要解壓的文件
* @param sDestPath 解壓到某文件夾
* @return
*/
@SuppressWarnings("unchecked")
public static ArrayList Ectract(String sZipPathFile, String sDestPath) {
ArrayList<String> allFileName = new ArrayList<String>();
try {
// 先指定壓縮檔的位置和檔名,建立FileInputStream對象
FileInputStream fins = new FileInputStream(sZipPathFile);
// 將fins傳入ZipInputStream中
ZipInputStream zins = new ZipInputStream(fins);
ZipEntry ze = null;
byte[] ch = new byte[256];
while ((ze = zins.getNextEntry()) != null) {
File zfile = new File(sDestPath + ze.getName());
//File zfile = new File(sDestPath +File.separator+ ze.getName());
File fpath = new File(zfile.getParentFile().getPath());
if (ze.isDirectory()) {
if (!zfile.exists())
zfile.mkdirs();
zins.closeEntry();
} else {
if (!fpath.exists())
fpath.mkdirs();
FileOutputStream fouts = new FileOutputStream(zfile);
int i;
allFileName.add(zfile.getAbsolutePath());
while ((i = zins.read(ch)) != -1)
fouts.write(ch, 0, i);
zins.closeEntry();
fouts.close();
}
}
fins.close();
zins.close();
} catch (Exception e) {
System.err.println("Extract error:" + e.getMessage());
}
return allFileName;
}
}
新新:http://blog.csdn.net/xinxin19881112/article/details/46913931