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);
}
}
转载于:https://www.cnblogs.com/smart-hwt/p/8275381.html
