FileToZip

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.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public final class FileToZip {

private FileToZip(){}

public static boolean fileToZip(String sourceFilePath,String zipFilePath,String fileName,List rootFilesMD5){
boolean flag = false;
File sourceFile = new File(sourceFilePath);
FileInputStream fis = null;
BufferedInputStream bis = null;
FileOutputStream fos = null;
ZipOutputStream zos = null;

if(sourceFile.exists() == false){
System.out.println(“待压缩的文件目录：”+sourceFilePath+”不存在.”);
//sourceFile.mkdir(); // 新建目录
}
try {
File zipFile = new File(zipFilePath + “/” + fileName +”.zip”);
if(zipFile.exists()){
System.out.println(zipFilePath + “目录下存在名字为:” + fileName +”.zip” +”打包文件.”);
}else{
//File[] sourceFiles =
String[] strings = sourceFile.list();
File[] originSourceFiles = sourceFile.listFiles();
List sourceFiles = new ArrayList<>();
for(int i=0; ilength; i++){
for(int j=0;j
if(rootFilesMD5.get(j).equals(originSourceFiles[i].getName())){
sourceFiles.add(originSourceFiles[i]);
break;
}
}
}
if(null == sourceFiles || sourceFiles.size()<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
//创建ZIP实体，并添加进压缩包
ZipEntry zipEntry = new ZipEntry(sourceFiles.get(i).getName());
zos.putNextEntry(zipEntry);
//读取待压缩的文件并写进压缩包里
fis = new FileInputStream(sourceFiles.get(i));
bis = new BufferedInputStream(fis, 1024*10);
int read = 0;
while((read=bis.read(bufs, 0, 1024*10)) != -1){
zos.write(bufs,0,read);
}
}
flag = true;
}
}
} 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 flag;
}
}