public static void removeDirFromZipArchive(String file, String removeDir) throws ZipException {
// 创建ZipFile并设置编码
ZipFile zipFile = new ZipFile(file);
zipFile.setFileNameCharset("GBK");
// 给要删除的目录加上路径分隔符
if (!removeDir.endsWith(File.separator)) removeDir += File.separator;
// 如果目录不存在, 直接返回
FileHeader dirHeader = zipFile.getFileHeader(removeDir);
if (null == dirHeader) return;
// 遍历压缩文件中所有的FileHeader, 将指定删除目录下的子文件名保存起来
@SuppressWarnings("unchecked")
List<FileHeader> headersList = zipFile.getFileHeaders();
List<String> removeHeaderNames = new ArrayList<String>();
for (int i = 0, len = headersList.size(); i < len; i++) {
FileHeader subHeader = (FileHeader) headersList.get(i);
if (subHeader.getFileName().startsWith(dirHeader.getFileName())
&& !subHeader.getFileName().equals(dirHeader.getFileName())) {
removeHeaderNames.add(subHeader.getFileName());
}
}
// 遍历删除指定目录下的所有子文件, 最后删除指定目录(此时已为空目录)
for (String headerNameString : removeHeaderNames) {
zipFile.removeFile(headerNameString);
}
zipFile.removeFile(dirHeader);
}
/**
* 从ZIP的压缩文件中，搜索指定文件名的文件路径
*
* @param zipfile
* @param filename
* @return
* @throws ZipException
*/
public static String getFileNameFromZIP(ZipFile zipfile, String filename) throws ZipException {
// Get the list of file headers from the zip file
@SuppressWarnings("unchecked")
List<FileHeader> fileHeaderList = zipfile.getFileHeaders();
for (FileHeader fh : fileHeaderList) {
if (fh.getFileName().contains(filename)) {
return fh.getFileName();
}
}
return "";
}
public static void copyJavaToZip(String warFile, String toZip, String javafile, String jarName) {
ZipFile zipfile = null;
InputStream isJar = null;
try {
isJar = getFileStreamFromZip(warFile, getFileNameFromZIP(new ZipFile(warFile), jarName));
zipfile = genZipFileFromStream(isJar);
// java文件中可能会有子类，需要检查,并生成list
String javaName = javafile.substring(0, javafile.lastIndexOf(".java"));
List<FileHeader> listJavaFile = searchZipFiles(zipfile, javaName);
for (FileHeader fileheader : listJavaFile) {
InputStream isfile = zipfile.getInputStream(fileheader);
AddStreamToZip(toZip, isfile, jarName + "/" + fileheader.getFileName());
// "com.foresee.etax.bizfront/com/foresee/etax/bizfront/constant/EtaxBizFrontConstant.class"
isfile.close();
}
} catch (ZipException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (isJar != null) isJar.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static List<FileHeader> searchZipFiles(ZipFile zipfile, String filename)
throws ZipException {
// Get the list of file headers from the zip file
@SuppressWarnings("unchecked")
List<FileHeader> fileHeaderList = zipfile.getFileHeaders();
List<FileHeader> retList = new ArrayList<FileHeader>();
for (FileHeader fh : fileHeaderList) {
if (fh.getFileName().contains(filename)) {
retList.add(fh);
}
}
return retList;
}
public void ExtractSelectFilesWithInputStream(
String zipFileName, String fileName, String destinationPath) {
ZipInputStream is = null;
OutputStream os = null;
try {
// Initiate the ZipFile
ZipFile zipFile = new ZipFile(zipFileName);
// String destinationPath = "c:\\ZipTest";
// If zip file is password protected then set the password
if (zipFile.isEncrypted()) {
zipFile.setPassword("password");
}
// Get the FileHeader of the File you want to extract from the
// zip file. Input for the below method is the name of the file
// For example: 123.txt or abc/123.txt if the file 123.txt
// is inside the directory abc
FileHeader fileHeader = zipFile.getFileHeader(fileName);
if (fileHeader != null) {
// Build the output file
String outFilePath =
destinationPath + System.getProperty("file.separator") + fileHeader.getFileName();
File outFile = new File(outFilePath);
// Checks if the file is a directory
if (fileHeader.isDirectory()) {
// This functionality is up to your requirements
// For now I create the directory
outFile.mkdirs();
return;
}
// Check if the directories(including parent directories)
// in the output file path exists
File parentDir = outFile.getParentFile();
if (!parentDir.exists()) {
parentDir.mkdirs(); // If not create those directories
}
// Get the InputStream from the ZipFile
is = zipFile.getInputStream(fileHeader);
// Initialize the output stream
os = new FileOutputStream(outFile);
int readLen = -1;
byte[] buff = new byte[BUFF_SIZE];
// Loop until End of File and write the contents to the output
// stream
while ((readLen = is.read(buff)) != -1) {
os.write(buff, 0, readLen);
}
// Closing inputstream also checks for CRC of the the just
// extracted file.
// If CRC check has to be skipped (for ex: to cancel the unzip
// operation, etc)
// use method is.close(boolean skipCRCCheck) and set the flag,
// skipCRCCheck to false
// NOTE: It is recommended to close outputStream first because
// Zip4j throws
// an exception if CRC check fails
is.close();
// Close output stream
os.close();
// To restore File attributes (ex: last modified file time,
// read only flag, etc) of the extracted file, a utility class
// can be used as shown below
UnzipUtil.applyFileAttributes(fileHeader, outFile);
System.out.println("Done extracting: " + fileHeader.getFileName());
} else {
System.err.println("FileHeader does not exist-->" + fileName);
}
} catch (Exception e) {
e.printStackTrace();
}
}