最近发现Java原生的Zip压缩组件在压缩过程中,不支持文件名的中文编码,会在压缩过程中把中文文件名变成乱码。Apache的ant包中的压缩组件修复了这个问题,如果你在使用压缩功能时需要支持中文文件名,建议你直接使用Apache的压缩组件来实现这个功能。
具体使用方法:
1.在你的pom文件中增加对Apache的ant工具包的dependency:
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< dependency >
< groupId >org.apache.ant</ groupId >
< artifactId >ant</ artifactId >
< version >1.9.3</ version >
</ dependency >
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并在头部引用用到的类:
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import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import org.apache.tools.zip.ZipOutputStream;
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2.压缩的方法实现,大家注意,本组件支持设置编码(setEncoding("GBK")方法),解决了中文编码的问题:
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public static void compress(String srcPath , String dstPath) throws IOException{
File srcFile = new File(srcPath);
File dstFile = new File(dstPath);
if (!srcFile.exists()) {
throw new FileNotFoundException(srcPath + "does not exists" );
}
FileOutputStream out = null ;
ZipOutputStream zipOut = null ;
try {
out = new FileOutputStream(dstFile);
zipOut = new ZipOutputStream( new BufferedOutputStream(out));
zipOut.setEncoding( "GBK" );
String baseDir = "" ;
compress(srcFile, zipOut, baseDir);
}
catch (Throwable ex){
throw new RuntimeException(ex);
}
finally {
if ( null != zipOut){
zipOut.close();
out = null ;
}
if ( null != out){
out.close();
}
}
}
private static void compress(File file, ZipOutputStream zipOut, String baseDir) throws IOException{
if (file.isDirectory()) {
compressDirectory(file, zipOut, baseDir);
} else {
compressFile(file, zipOut, baseDir);
}
}
/** 压缩一个目录 */
private static void compressDirectory(File dir, ZipOutputStream zipOut, String baseDir) throws IOException{
File[] files = dir.listFiles();
for ( int i = 0 ; i < files.length; i++) {
compress(files[i], zipOut, baseDir + dir.getName() + "/" );
}
}
/** 压缩一个文件 */
private static void compressFile(File file, ZipOutputStream zipOut, String baseDir) throws IOException{
if (!file.exists()){
return ;
}
BufferedInputStream bis = null ;
try {
bis = new BufferedInputStream( new FileInputStream(file));
ZipEntry entry = new ZipEntry(baseDir + file.getName());
zipOut.putNextEntry(entry);
int count;
byte data[] = new byte [BUFFER];
while ((count = bis.read(data, 0 , BUFFER)) != - 1 ) {
zipOut.write(data, 0 , count);
}
} finally {
if ( null != bis){
bis.close();
}
}
}
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3.解压缩的实现:
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public static void decompress(String zipFile , String dstPath) throws IOException{
File pathFile = new File(dstPath);
if (!pathFile.exists()){
pathFile.mkdirs();
}
ZipFile zip = new ZipFile(zipFile);
for (Enumeration entries = zip.getEntries();entries.hasMoreElements();){
ZipEntry entry = (ZipEntry)entries.nextElement();
String zipEntryName = entry.getName();
InputStream in = null ;
OutputStream out = null ;
try {
in = zip.getInputStream(entry);
String outPath = (dstPath+ "/" +zipEntryName).replaceAll( "\\*" , "/" );;
//判断路径是否存在,不存在则创建文件路径
File file = new File(outPath.substring( 0 , outPath.lastIndexOf( '/' )));
if (!file.exists()){
file.mkdirs();
}
//判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压
if ( new File(outPath).isDirectory()){
continue ;
}
out = new FileOutputStream(outPath);
byte [] buf1 = new byte [ 1024 ];
int len;
while ((len=in.read(buf1))> 0 ){
out.write(buf1, 0 ,len);
}
}
finally {
if ( null != in){
in.close();
}
if ( null != out){
out.close();
}
}
}
}
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以上代码经过测试,可以直接使用。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.jianshu.com/p/36f87ab9a55b