Java的 - 如何将文件移动到一个zip文件? [英] Java - How to move a file into a zip file?
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问题描述
文件文件=新文件(C:\\文件夹\\测试.txt);
文件dir = new File(directoryToGo +existingzipfile.zip);
boolean success = file.renameTo(new File(dir,file.getName()));
但是不行。有没有办法将文件移动到现有的Zip文件?
谢谢。
解决方案
嗯,你可以使用类似的东西:
$ b $ (文件zipFile,File [] files)抛出IOException {
//获取临时文件
文件tempFile = File.createTempFile(File.createTempFile zipFile.getName(),null);
//删除它,否则你不能重命名现有的zip到它。
tempFile.delete();
布尔renameOk = zipFile.renameTo(tempFile); (!renameOk){
throw new RuntimeException(无法重命名文件+ zipFile.getAbsolutePath()+to+ tempFile.getAbsolutePath());
}
byte [] buf = new byte [1024];
ZipInputStream zin = new ZipInputStream(new FileInputStream(tempFile));
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile));
ZipEntry entry = zin.getNextEntry();
while(entry
!= null){
String name = entry.getName();
boolean notInFiles = true;
for(File f:files){
if(f.getName()。equals(name)){
notInFiles = false;
break;
if(notInFiles){//将ZIP条目添加到输出流。 out.putNextEntry(new ZipEntry(name)); //从ZIP文件传输字节到输出文件int len; while((len = zin.read(buf))> 0){out.write(buf,0,len); }} entry = zin.getNextEntry(); } //关闭流zin.close(); //压缩文件(int i = 0; i< files.length; i ++){InputStream in = new FileInputStream(files [i]); //将ZIP条目添加到输出流。 out.putNextEntry(new ZipEntry(files [i] .getName())); //将文件中的字节传输到ZIP文件int len; while((len = in.read(buf))> 0){out.write(buf,0,len); } //完成条目out.closeEntry();附寄(); } //完成ZIP文件out.close();
tempFile.delete();
参考: p>
That's it. I have a text file, and I need to move it to a (existing) Zip File in a given directory.
File file = new File("C:\\afolder\\test.txt");
File dir = new File(directoryToGo+"existingzipfile.zip");
boolean success = file.renameTo(new File(dir, file.getName()));
But it does not work. Is there a way to move a file into a existing Zip File? Thank you.
解决方案
Hmm you could use something like:
public static void addFilesToExistingZip(File zipFile, File[] files) throws IOException {
// get a temp file
File tempFile = File.createTempFile(zipFile.getName(), null);
// delete it, otherwise you cannot rename your existing zip to it.
tempFile.delete();
boolean renameOk = zipFile.renameTo(tempFile);
if (!renameOk) {
throw new RuntimeException("could not rename the file " + zipFile.getAbsolutePath() + " to " + tempFile.getAbsolutePath());
}
byte[] buf = new byte[1024];
ZipInputStream zin = new ZipInputStream(new FileInputStream(tempFile));
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile));
ZipEntry entry = zin.getNextEntry();
while (entry
!= null) {
String name = entry.getName();
boolean notInFiles = true;
for (File f : files) {
if (f.getName().equals(name)) {
notInFiles = false;
break;
}
}
if (notInFiles) { // Add ZIP entry to output stream. out.putNextEntry(new ZipEntry(name)); // Transfer bytes from the ZIP file to the output file int len; while ((len = zin.read(buf)) > 0) { out.write(buf, 0, len); } } entry = zin.getNextEntry(); } // Close the streams zin.close(); // Compress the files for (int i = 0; i < files.length; i++) { InputStream in = new FileInputStream(files[i]); // Add ZIP entry to output stream. out.putNextEntry(new ZipEntry(files[i].getName())); // Transfer bytes from the file to the ZIP file int len; while ((len = in.read(buf)) > 0) { out.write(buf, 0, len); } // Complete the entry out.closeEntry(); in.close(); } // Complete the ZIP file out.close();
tempFile.delete();
}
}
Reference:
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