JAVA压缩文件、解压文件、删除文件

public File zip(String filePath) {
File target = null;
File source = new File(filePath);
if (source.exists()) {
// 压缩文件名=源文件名.zip
//这里可以对目标文件路径进行设置
String zipName = source.getName() + ".zip";
target = new File(source.getParent(), zipName);
if (target.exists()) {
target.delete(); // 删除旧的文件
}
FileOutputStream fos = null;
ZipOutputStream zos = null;
try {
fos = new FileOutputStream(target);
zos = new ZipOutputStream(new BufferedOutputStream(fos));
// 添加对应的文件Entry
File[] files = source.listFiles();
for(int i = 0 ; i < files.length ;i++){
addEntry("", files[i], zos);
}
zos.close();
fos.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return target;
}

private static void addEntry(String base, File source, ZipOutputStream zos)
throws IOException {
// 按目录分级，形如：/aaa/bbb.txt
String entry = base + source.getName();
if (source.isDirectory()) {
for (File file : source.listFiles()) {
// 递归列出目录下的所有文件，添加文件Entry
addEntry(entry + "/", file, zos);
}
} else {
FileInputStream fis = null;
BufferedInputStream bis = null;
try {
byte[] buffer = new byte[1024 * 10];
fis = new FileInputStream(source);
bis = new BufferedInputStream(fis, buffer.length);
int read = 0;
zos.putNextEntry(new ZipEntry(entry));
while ((read = bis.read(buffer, 0, buffer.length)) != -1) {
zos.write(buffer, 0, read);
}
zos.closeEntry();
} finally {
bis.close();
fis.close();
}
}
}

public void UnZip(String zipFileName , String armFilePath){
//解压文件，zipFileName为压缩文件路径，armFilePath为解压文件夹路径
try {
ZipInputStream zis = new ZipInputStream(new FileInputStream(new File(zipFileName)));
BufferedInputStream bis = new BufferedInputStream(zis);
ZipEntry zipEntry;

while((zipEntry = zis.getNextEntry()) != null && !zipEntry.isDirectory()){
File nowFileOut = new File(armFilePath,zipEntry.getName());
if(!nowFileOut.exists()){
(new File(nowFileOut.getParent())).mkdirs();
}
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(nowFileOut));
byte[] buffer = new byte[1024 * 10];
int read = 0;
while((read = bis.read(buffer,0,buffer.length)) != -1){
bos.write(buffer,0,read);
}
bos.close();
}
bis.close();
zis.close();

} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

private boolean deleteDir(File dir) {
if (dir.isDirectory()) {
String[] children = dir.list();
for (int i=0; i<children.length; i++) {
boolean success = deleteDir(new File(dir, children[i]));
if (!success) {
return false;
}
}
}
// 目录此时为空，可以删除
return dir.delete();
}