import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
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.ZipOutputStream;
public class FilleUtils {
/**
* zip压缩文件，默认生成的压缩文件目录与当前需要压缩的文件或者目录同级
* @param filePath 需要压缩的文件或者目录
* @return 返回zip压缩文件路径
*/
public static String zip(String filePath) throws Exception{
System.out.println("压缩中...");
String zipFilePath = null;
File srcFile = new File(filePath);
//获得zip文件路径
if(srcFile.isDirectory()){
zipFilePath = srcFile.getParent() + srcFile.getName() + ".zip";
}
else{
String zipFileName = "";
if(srcFile.getName().indexOf(".")>-1)
zipFileName = srcFile.getName().substring(0 ,srcFile.getName().lastIndexOf(".")) + ".zip";
else
zipFileName = srcFile.getName() + ".zip";
zipFilePath = srcFile.getParent() + zipFileName;
}
//开始进行压缩
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFilePath));
BufferedOutputStream bo = new BufferedOutputStream(out);
zip(out, srcFile, srcFile.getName(), bo);
bo.close();
out.close();
System.out.println("压缩完成");
return zipFilePath;
}
/**
* zip压缩文件
* @param filePath
* @param zipFilePath
*/
public static void zip(String filePath ,String zipFilePath) throws Exception{
System.out.println("压缩中...");
File srcFile = new File(filePath);
//检查压缩文件路径是否存在，不存在则创建
File zipFile = new File(zipFilePath);
if(!zipFile.exists()){
zipFile.getParentFile().mkdirs();
}
//开始压缩
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFilePath));
BufferedOutputStream bo = new BufferedOutputStream(out);
zip(out, srcFile, srcFile.getName(), bo);
bo.close();
out.close();
System.out.println("压缩完成");
}
/**
* 压缩指定的多个文件或者目录
* @param filePathList
* @param zipFilePath
* @throws Exception
*/
public static void zip(ArrayList<String> filePathList , String zipFilePath) throws Exception{
System.out.println("压缩中...");
//检查压缩文件路径是否存在，不存在则创建
File zipFile = new File(zipFilePath);
if(!zipFile.exists()){
zipFile.getParentFile().mkdirs();
}
//开始压缩
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFilePath));
BufferedOutputStream bo = new BufferedOutputStream(out);
if(filePathList==null || filePathList.size()==0){
throw new RuntimeException("没有指定需要压缩的文件");
}
for(String filePath :filePathList){
File srcFile = new File(filePath);
zip(out, srcFile, srcFile.getName(), bo);
}
bo.close();
out.close();
System.out.println("压缩完成");
}
private static void zip(ZipOutputStream out , File srcFile ,String base ,BufferedOutputStream bo) throws Exception{
//如果需要压缩的文件是目录，则进行递归压缩处理
if(srcFile.isDirectory()){
File[] fileList = srcFile.listFiles();
//如果是空目录，也需要将该目录压缩进去，注意，此时zipentry的name必须以“/"结束
if (fileList.length == 0) {
out.putNextEntry(new ZipEntry(base + "/")); // 创建zip压缩进入点base
out.closeEntry();
}
for (int i = 0; i < fileList.length; i++) {
zip(out, fileList[i], base + "/" + fileList[i].getName(), bo); // 递归遍历子文件夹
}
}
else{
out.putNextEntry(new ZipEntry(base)); // 创建zip压缩进入点base
FileInputStream in = new FileInputStream(srcFile);
byte[]buffer = new byte[1024];
int len = 0;
while((len = in.read(buffer))!=-1){
out.write(buffer ,0 ,len);
}
in.close(); // 输入流关闭
}
}
