通过ZipOutputStream压缩文件夹中的文件
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import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipCompressor {
private File zipFile;
public ZipCompressor(String pathName) {
zipFile = new File(pathName);
}
public void compress(String... pathName) {
ZipOutputStream out = null;
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
out = new ZipOutputStream(cos);
String basedir = "";
for (int i=0;i<pathName.length;i++){
compress(new File(pathName[i]), out, basedir);
}
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public void compress(String srcPathName) {
File file = new File(srcPathName);
if (!file.exists())
throw new RuntimeException(srcPathName + "不存在!");
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
ZipOutputStream out = new ZipOutputStream(cos);
String basedir = "";
compress(file, out, basedir);
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private void compress(File file, ZipOutputStream out, String basedir) {
/* 判断是目录还是文件 */
if (file.isDirectory()) {
System.out.println("压缩:" + basedir + file.getName());
this.compressDirectory(file, out, basedir);
} else {
System.out.println("压缩:" + basedir + file.getName());
this.compressFile(file, out, basedir);
}
}
/** 压缩一个目录 */
private void compressDirectory(File dir, ZipOutputStream out, String basedir) {
if (!dir.exists())
return;
File[] files = dir.listFiles();
for (int i = 0; i < files.length; i++) {
/* 递归 */
compress(files[i], out, basedir + dir.getName() + "/");
}
}
//压缩一个文件
public void compressFile(File file,ZipOutputStream out,String basedir){
//如果文件不存在直接返回
if(!file.exists())
return;
int count,byteLength=1024;
byte data[]=new byte[byteLength];
BufferedInputStream bis = null;
try{
bis =
new BufferedInputStream(new FileInputStream(file));
System.out.println(basedir+file.getName());
ZipEntry entry = new ZipEntry(basedir+file.getName());
out.putNextEntry(entry);
while((count=bis.read(data, 0, byteLength))!=-1){
System.out.println(data);
out.write(data,0,count);
}
}catch(IOException io){
}finally{
try{
bis.close();
}catch(IOException io){
}
}
}
public static void main(String[] args) {
ZipCompressor zc = new ZipCompressor("d:/test.zip");
zc.compress("d:/test");
}
}
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipCompressor {
private File zipFile;
public ZipCompressor(String pathName) {
zipFile = new File(pathName);
}
public void compress(String... pathName) {
ZipOutputStream out = null;
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
out = new ZipOutputStream(cos);
String basedir = "";
for (int i=0;i<pathName.length;i++){
compress(new File(pathName[i]), out, basedir);
}
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public void compress(String srcPathName) {
File file = new File(srcPathName);
if (!file.exists())
throw new RuntimeException(srcPathName + "不存在!");
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
ZipOutputStream out = new ZipOutputStream(cos);
String basedir = "";
compress(file, out, basedir);
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private void compress(File file, ZipOutputStream out, String basedir) {
/* 判断是目录还是文件 */
if (file.isDirectory()) {
System.out.println("压缩:" + basedir + file.getName());
this.compressDirectory(file, out, basedir);
} else {
System.out.println("压缩:" + basedir + file.getName());
this.compressFile(file, out, basedir);
}
}
/** 压缩一个目录 */
private void compressDirectory(File dir, ZipOutputStream out, String basedir) {
if (!dir.exists())
return;
File[] files = dir.listFiles();
for (int i = 0; i < files.length; i++) {
/* 递归 */
compress(files[i], out, basedir + dir.getName() + "/");
}
}
//压缩一个文件
public void compressFile(File file,ZipOutputStream out,String basedir){
//如果文件不存在直接返回
if(!file.exists())
return;
int count,byteLength=1024;
byte data[]=new byte[byteLength];
BufferedInputStream bis = null;
try{
bis =
new BufferedInputStream(new FileInputStream(file));
System.out.println(basedir+file.getName());
ZipEntry entry = new ZipEntry(basedir+file.getName());
out.putNextEntry(entry);
while((count=bis.read(data, 0, byteLength))!=-1){
System.out.println(data);
out.write(data,0,count);
}
}catch(IOException io){
}finally{
try{
bis.close();
}catch(IOException io){
}
}
}
public static void main(String[] args) {
ZipCompressor zc = new ZipCompressor("d:/test.zip");
zc.compress("d:/test");
}
}
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