import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
/**
* 将文件夹下面的文件
* 打包成zip压缩文件
*
* @author hwt
*
*/
public class FileToZip {
private FileToZip(){}
/**
* 将存放在sourceFilePath目录下的源文件,打包成fileName名称的zip文件,并存放到zipFilePath路径下
* @param sourceFilePath :待压缩的文件路径
* @param zipFilePath :压缩后存放路径
* @param fileName :压缩后文件的名称
* @return
*/
public static String fileToZip(String sourceFilePath,String zipFilePath,String fileName){
File sourceFile = new File(sourceFilePath);
FileInputStream fis = null;
BufferedInputStream bis = null;
FileOutputStream fos = null;
ZipOutputStream zos = null;
//判断源文件是否存在
if(!sourceFile.exists()){
System.out.println("待压缩的文件目录:"+sourceFilePath+"不存在.");
}else{
try {
File zipFile = new File(zipFilePath + "/" + fileName +".zip");
//判断压缩后文件是否会重复
if(zipFile.exists()){
System.out.println(zipFilePath + "目录下已存在名字为" + fileName +".zip" +"文件");
}else{
//获取源文件夹下的所有文件
File[] sourceFiles = sourceFile.listFiles();
if(null == sourceFiles || sourceFiles.length<1){
System.out.println("待压缩的文件目录:" + sourceFilePath + "里面不存在文件,无需压缩.");
}else{
fos = new FileOutputStream(zipFile);
zos = new ZipOutputStream(new BufferedOutputStream(fos));
byte[] bufs = new byte[1024*10];
for(int i=0; i<sourceFiles.length; i++){
//创建ZIP实体,并添加进压缩包
ZipEntry zipEntry = new ZipEntry(sourceFiles[i].getName());
zos.putNextEntry(zipEntry);
//读取待压缩的文件并写进压缩包里
fis = new FileInputStream(sourceFiles[i]);
bis = new BufferedInputStream(fis, 1024*10);
int read = 0;
while((read=bis.read(bufs, 0, 1024*10)) != -1){
zos.write(bufs,0,read);
}
}
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
throw new RuntimeException(e);
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException(e);
} finally{
//关闭流
try {
if(null != bis) bis.close();
if(null != zos) zos.close();
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
}
return fileName + ".zip";
}
public static void main(String[] args){
String sourceFilePath = "D:\\source";
String zipFilePath = "D:\\targetzip";
String fileName = "test";
String fn = FileToZip.fileToZip(sourceFilePath, zipFilePath, fileName);
System.out.println(fn);
}
}
每日积累一点,都是进步的见证。