Java 文件转Zip实现

/**
* 文件转zip
* @param sourceFilePath
* @param zipFilePath
* @param fileName
* @return
*/
public static boolean fileToZip(String sourceFilePath, String zipFilePath, String fileName) {
boolean flag = false;
File sourceFile = new File(sourceFilePath);
BufferedInputStream bis = null;
FileOutputStream fos = null;
ZipOutputStream zos = null;

if (sourceFile.exists() == false) {
System.out.println("待压缩的文件不存在.");
} else {
try {
File zipFile = new File(zipFilePath + "\\" + fileName +".zip");
File[] sourceFiles = sourceFile.listFiles();
if (null == sourceFiles || sourceFiles.length < 1) {
System.out.println("待压缩的文件目录里面不存在文件，无需压缩.");
} else {
fos = new FileOutputStream(zipFile);
zos = new ZipOutputStream(new BufferedOutputStream(fos));
for (int i = 0; i < sourceFiles.length; i++) {
writeZip(sourceFiles[i], zipFilePath, zos, zipFilePath);
}
flag = true;
}
} catch (FileNotFoundException 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;
}

/**
* zip写入逻辑
* @param file
* @param parentPath
* @param zos
* @param firstParentName
*/
private static void writeZip(File file, String parentPath, ZipOutputStream zos, String firstParentName) {
if(file.exists()){
if(file.isDirectory()){//处理文件夹
parentPath+=file.getName()+File.separator;
File [] files=file.listFiles();
for(File f:files){
writeZip(f, parentPath, zos, firstParentName);
}
}else{
FileInputStream fis=null;
try {
fis=new FileInputStream(file);
ZipEntry ze = new ZipEntry(parentPath.replace(firstParentName, "") + file.getName());
zos.putNextEntry(ze);
byte [] content=new byte[1024];
int len;
while((len=fis.read(content))!=-1){
zos.write(content,0,len);
zos.flush();
}
} catch (FileNotFoundException e) {
System.out.println("创建ZIP文件失败");
} catch (IOException e) {
System.out.println("创建ZIP文件失败");
}finally{
try {
if(fis!=null){
fis.close();
}
}catch(IOException e){
System.out.println("创建ZIP文件失败");
}
}
}
}
}