blocks|key|1295873|text|看看这个例子：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1295874|StringBuilder+sb+=+new+StringBuilder();
sb.append("Test+String");

File+f+=+new+File("d:\\test.zip");
ZipOutputStream+out+=+new+ZipOutputStream(new+FileOutputStream(f));
ZipEntry+e+=+new+ZipEntry("mytext.txt");
out.putNextEntry(e);

byte[]+data+=+sb.toString().getBytes();
out.write(data,+0,+data.length);
out.closeEntry();

out.close();|code-block|syntax|javascript|1295875|这将在D:的根目录下创建一个名为test.zip的压缩包，其中将包含一个名为mytext.txt的文件。当然，您可以添加更多的zip条目，也可以指定一个子目录，如下所示：|offset|length|style|CODE|1295876|ZipEntry+e+=+new+ZipEntry("folderName/mytext.txt");|1295877|您可以找到有关使用Java+here进行压缩的更多信息。|1295878|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.oracle.com/javase/8/docs/api/java/util/zip/package-summary.html^0|0|0|3|2|G|8|12|A|0|0|E|4|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@$I|11|J|12|K|L]|$I|13|J|14|K|L]|$I|15|J|16|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|18|8|@]|9|@$I|19|J|1A|1|1B]]|A|$]]|$1|Q|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

Look at this example:

<pre><code>StringBuilder sb = new StringBuilder();
sb.append("Test String");

File f = new File("d:\\test.zip");
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(f));
ZipEntry e = new ZipEntry("mytext.txt");
out.putNextEntry(e);

byte[] data = sb.toString().getBytes();
out.write(data, 0, data.length);
out.closeEntry();

out.close();
</code></pre>

This will create a zip in the root of <code>D:</code> named <code>test.zip</code> which will contain one single file called <code>mytext.txt</code>. Of course you can add more zip entries and also specify a subdirectory like this:

<pre><code>ZipEntry e = new ZipEntry("folderName/mytext.txt");
</code></pre>

You can find more information about compression with Java <a href="https://docs.oracle.com/javase/8/docs/api/java/util/zip/package-summary.html" rel="noreferrer">here</a>.

blocks|key|1295912|text|要编写ZIP文件，您需要使用ZipOutputStream。对于要放入ZIP文件中的每个条目，都需要创建一个ZipEntry对象。将文件名传递给ZipEntry构造函数；它设置其他参数，比如文件日期和解压缩方法。如果愿意，您可以覆盖这些设置。然后，调用ZipOutputStream的putNextEntry方法开始编写新文件。将文件数据发送到ZIP流。完成后，调用closeEntry。对要存储的所有文件重复上述操作。下面是一个代码框架：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1295913|FileOutputStream+fout+=+new+FileOutputStream("test.zip");
ZipOutputStream+zout+=+new+ZipOutputStream(fout);
for+all+files
{
++++ZipEntry+ze+=+new+ZipEntry(filename);
++++zout.putNextEntry(ze);
++++send+data+to+zout;
++++zout.closeEntry();
}
zout.close();|code-block|syntax|javascript|1295914|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

To write a ZIP file, you use a ZipOutputStream. For each entry that you want to place into the ZIP file, you create a ZipEntry object. You pass the file name to the ZipEntry constructor; it sets the other parameters such as file date and decompression method. You can override these settings if you like. Then, you call the putNextEntry method of the ZipOutputStream to begin writing a new file. Send the file data to the ZIP stream. When you are done, call closeEntry. Repeat for all the files you want to store. Here is a code skeleton:

<pre><code>FileOutputStream fout = new FileOutputStream("test.zip");
ZipOutputStream zout = new ZipOutputStream(fout);
for all files
{
 ZipEntry ze = new ZipEntry(filename);
 zout.putNextEntry(ze);
 send data to zout;
 zout.closeEntry();
}
zout.close();
</code></pre>

blocks|key|1510603|text|public+static+void+main(String+args[])
{
++++omtZip("res/",+"omt.zip");
}
public+static+void+omtZip(String+path,String+outputFile)
{
++++final+int+BUFFER+=+2048;
++++boolean+isEntry+=+false;
++++ArrayList<String>+directoryList+=+new+ArrayList<String>();
++++File+f+=+new+File(path);
++++if(f.exists())
++++{
++++try+{
++++++++++++FileOutputStream+fos+=+new+FileOutputStream(outputFile);
++++++++++++ZipOutputStream+zos+=+new+ZipOutputStream(new+BufferedOutputStream(fos));
++++++++++++byte+data[]+=+new+byte[BUFFER];

++++++++++++if(f.isDirectory())
++++++++++++{
+++++++++++++++//This+is+Directory
++++++++++++++++do{
++++++++++++++++++++String+directoryName+=+"";
++++++++++++++++++++if(directoryList.size()+>+0)
++++++++++++++++++++{
++++++++++++++++++++++++directoryName+=+directoryList.get(0);
++++++++++++++++++++++++System.out.println("Directory+Name+At+0+:"%2BdirectoryName);
++++++++++++++++++++}
++++++++++++++++++++String+fullPath+=+path%2BdirectoryName;
++++++++++++++++++++File+fileList+=+null;
++++++++++++++++++++if(directoryList.size()+==+0)
++++++++++++++++++++{
++++++++++++++++++++++++//Main+path+(Root+Directory)
++++++++++++++++++++++++fileList+=+f;
++++++++++++++++++++}else
++++++++++++++++++++{
++++++++++++++++++++++++//Child+Directory
++++++++++++++++++++++++fileList+=+new+File(fullPath);
++++++++++++++++++++}
++++++++++++++++++++String[]+filesName+=+fileList.list();

++++++++++++++++++++int+totalFiles+=+filesName.length;
++++++++++++++++++++for(int+i+=+0+;+i+<+totalFiles+;+i%2B%2B)
++++++++++++++++++++{
++++++++++++++++++++++++String+name+=+filesName[i];
++++++++++++++++++++++++File+filesOrDir+=+new+File(fullPath%2Bname);
++++++++++++++++++++++++if(filesOrDir.isDirectory())
++++++++++++++++++++++++{
++++++++++++++++++++++++++++System.out.println("New+Directory+Entry+:"%2BdirectoryName%2Bname%2B"/");
++++++++++++++++++++++++++++ZipEntry+entry+=+new+ZipEntry(directoryName%2Bname%2B"/");
++++++++++++++++++++++++++++zos.putNextEntry(entry);
++++++++++++++++++++++++++++isEntry+=+true;
++++++++++++++++++++++++++++directoryList.add(directoryName%2Bname%2B"/");
++++++++++++++++++++++++}else
++++++++++++++++++++++++{
++++++++++++++++++++++++++++System.out.println("New+File+Entry+:"%2BdirectoryName%2Bname);
++++++++++++++++++++++++++++ZipEntry+entry+=+new+ZipEntry(directoryName%2Bname);
++++++++++++++++++++++++++++zos.putNextEntry(entry);
++++++++++++++++++++++++++++isEntry+=+true;
++++++++++++++++++++++++++++FileInputStream+fileInputStream+=+new+FileInputStream(filesOrDir);
++++++++++++++++++++++++++++BufferedInputStream+bufferedInputStream+=+new+BufferedInputStream(fileInputStream,+BUFFER);
++++++++++++++++++++++++++++int+size+=+-1;
++++++++++++++++++++++++++++while(++(size+=+bufferedInputStream.read(data,+0,+BUFFER))+!=+-1++)
++++++++++++++++++++++++++++{
++++++++++++++++++++++++++++++++zos.write(data,+0,+size);
++++++++++++++++++++++++++++}
++++++++++++++++++++++++++++bufferedInputStream.close();
++++++++++++++++++++++++}
++++++++++++++++++++}
++++++++++++++++++++if(directoryList.size()+>+0+&&+directoryName.trim().length()+>+0)
++++++++++++++++++++{
++++++++++++++++++++++++System.out.println("Directory+removed+:"%2BdirectoryName);
++++++++++++++++++++++++directoryList.remove(0);
++++++++++++++++++++}

++++++++++++++++}while(directoryList.size()+>+0);
++++++++++++}else
++++++++++++{
++++++++++++++++//This+is+File
++++++++++++++++//Zip+this+file
++++++++++++++++System.out.println("Zip+this+file+:"%2Bf.getPath());
++++++++++++++++FileInputStream+fis+=+new+FileInputStream(f);
++++++++++++++++BufferedInputStream+bis+=+new+BufferedInputStream(fis,BUFFER);
++++++++++++++++ZipEntry+entry+=+new+ZipEntry(f.getName());
++++++++++++++++zos.putNextEntry(entry);
++++++++++++++++isEntry+=+true;
++++++++++++++++int+size+=+-1+;
++++++++++++++++while((+size+=+bis.read(data,0,BUFFER))+!=+-1)
++++++++++++++++{
++++++++++++++++++++zos.write(data,+0,+size);
++++++++++++++++}
++++++++++++}+++++++++++++++

++++++++++++//CHECK+IS+THERE+ANY+ENTRY+IN+ZIP+?+----START
++++++++++++if(isEntry)
++++++++++++{
++++++++++++++zos.close();
++++++++++++}else
++++++++++++{
++++++++++++++++zos+=+null;
++++++++++++++++System.out.println("No+Entry+Found+in+Zip");
++++++++++++}
++++++++++++//CHECK+IS+THERE+ANY+ENTRY+IN+ZIP+?+----START
++++++++}catch(Exception+e)
++++++++{
++++++++++++e.printStackTrace();
++++++++}
++++}else
++++{
++++++++System.out.println("File+or+Directory+not+found");
++++}
+}++++

}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1510604|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>public static void main(String args[])
{
 omtZip("res/", "omt.zip");
}
public static void omtZip(String path,String outputFile)
{
 final int BUFFER = 2048;
 boolean isEntry = false;
 ArrayList&lt;String&gt; directoryList = new ArrayList&lt;String&gt;();
 File f = new File(path);
 if(f.exists())
 {
 try {
 FileOutputStream fos = new FileOutputStream(outputFile);
 ZipOutputStream zos = new ZipOutputStream(new BufferedOutputStream(fos));
 byte data[] = new byte[BUFFER];

 if(f.isDirectory())
 {
 //This is Directory
 do{
 String directoryName = "";
 if(directoryList.size() &gt; 0)
 {
 directoryName = directoryList.get(0);
 System.out.println("Directory Name At 0 :"+directoryName);
 }
 String fullPath = path+directoryName;
 File fileList = null;
 if(directoryList.size() == 0)
 {
 //Main path (Root Directory)
 fileList = f;
 }else
 {
 //Child Directory
 fileList = new File(fullPath);
 }
 String[] filesName = fileList.list();

 int totalFiles = filesName.length;
 for(int i = 0 ; i &lt; totalFiles ; i++)
 {
 String name = filesName[i];
 File filesOrDir = new File(fullPath+name);
 if(filesOrDir.isDirectory())
 {
 System.out.println("New Directory Entry :"+directoryName+name+"/");
 ZipEntry entry = new ZipEntry(directoryName+name+"/");
 zos.putNextEntry(entry);
 isEntry = true;
 directoryList.add(directoryName+name+"/");
 }else
 {
 System.out.println("New File Entry :"+directoryName+name);
 ZipEntry entry = new ZipEntry(directoryName+name);
 zos.putNextEntry(entry);
 isEntry = true;
 FileInputStream fileInputStream = new FileInputStream(filesOrDir);
 BufferedInputStream bufferedInputStream = new BufferedInputStream(fileInputStream, BUFFER);
 int size = -1;
 while( (size = bufferedInputStream.read(data, 0, BUFFER)) != -1 )
 {
 zos.write(data, 0, size);
 }
 bufferedInputStream.close();
 }
 }
 if(directoryList.size() &gt; 0 &amp;&amp; directoryName.trim().length() &gt; 0)
 {
 System.out.println("Directory removed :"+directoryName);
 directoryList.remove(0);
 }

 }while(directoryList.size() &gt; 0);
 }else
 {
 //This is File
 //Zip this file
 System.out.println("Zip this file :"+f.getPath());
 FileInputStream fis = new FileInputStream(f);
 BufferedInputStream bis = new BufferedInputStream(fis,BUFFER);
 ZipEntry entry = new ZipEntry(f.getName());
 zos.putNextEntry(entry);
 isEntry = true;
 int size = -1 ;
 while(( size = bis.read(data,0,BUFFER)) != -1)
 {
 zos.write(data, 0, size);
 }
 } 

 //CHECK IS THERE ANY ENTRY IN ZIP ? ----START
 if(isEntry)
 {
 zos.close();
 }else
 {
 zos = null;
 System.out.println("No Entry Found in Zip");
 }
 //CHECK IS THERE ANY ENTRY IN ZIP ? ----START
 }catch(Exception e)
 {
 e.printStackTrace();
 }
 }else
 {
 System.out.println("File or Directory not found");
 }
 } 

}
</code></pre>

blocks|key|1510617|text|Java7内置了ZipFileSystem，可以用来创建、写入和读取压缩文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1510618|Java+Doc:+ZipFileSystem+Provider|offset|length|1510619|Map<String,+String>+env+=+new+HashMap<>();
//+Create+the+zip+file+if+it+doesn't+exist
env.put("create",+"true");

URI+uri+=+URI.create("jar:file:/codeSamples/zipfs/zipfstest.zip");

try+(FileSystem+zipfs+=+FileSystems.newFileSystem(uri,+env))+{
++++Path+externalTxtFile+=+Paths.get("/codeSamples/zipfs/SomeTextFile.txt");
++++Path+pathInZipfile+=+zipfs.getPath("/SomeTextFile.txt");++++++++++
++++//+Copy+a+file+into+the+zip+file
++++Files.copy(externalTxtFile,+pathInZipfile,+StandardCopyOption.REPLACE_EXISTING);+
}|code-block|syntax|javascript|1510620|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.oracle.com/javase/8/docs/technotes/guides/io/fsp/zipfilesystemprovider.html^0|0|0|W|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@$D|U|E|V|1|W]]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

Java 7 has ZipFileSystem built in, that can be used to create, write and read file from zip file.

<a href="https://docs.oracle.com/javase/8/docs/technotes/guides/io/fsp/zipfilesystemprovider.html" rel="noreferrer">Java Doc: ZipFileSystem Provider</a>

<pre><code>Map&lt;String, String&gt; env = new HashMap&lt;&gt;();
// Create the zip file if it doesn't exist
env.put("create", "true");

URI uri = URI.create("jar:file:/codeSamples/zipfs/zipfstest.zip");

try (FileSystem zipfs = FileSystems.newFileSystem(uri, env)) {
 Path externalTxtFile = Paths.get("/codeSamples/zipfs/SomeTextFile.txt");
 Path pathInZipfile = zipfs.getPath("/SomeTextFile.txt"); 
 // Copy a file into the zip file
 Files.copy(externalTxtFile, pathInZipfile, StandardCopyOption.REPLACE_EXISTING); 
}
</code></pre>

blocks|key|1295972|text|如果你想在没有软件的情况下解压，最好使用下面的代码。带有pdf文件的其他代码在手动解压缩时发送错误|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1295973|byte[]+buffer+=+new+byte[1024];+++++
++++try
++++{+++
++++++++FileOutputStream+fos+=+new+FileOutputStream("123.zip");
++++++++ZipOutputStream+zos+=+new+ZipOutputStream(fos);
++++++++ZipEntry+ze=+new+ZipEntry("file.pdf");
++++++++zos.putNextEntry(ze);
++++++++FileInputStream+in+=+new+FileInputStream("file.pdf");
++++++++int+len;
++++++++while+((len+=+in.read(buffer))+>+0)+
++++++++{
++++++++++++zos.write(buffer,+0,+len);
++++++++}
++++++++in.close();
++++++++zos.closeEntry();
++++++++zos.close();
++++}
++++catch(IOException+ex)
++++{
+++++++ex.printStackTrace();
++++}|code-block|syntax|javascript|1295974|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you want decompress without software better use this code. Other code with pdf files sends error on manually decompress 

<pre><code>byte[] buffer = new byte[1024]; 
 try
 { 
 FileOutputStream fos = new FileOutputStream("123.zip");
 ZipOutputStream zos = new ZipOutputStream(fos);
 ZipEntry ze= new ZipEntry("file.pdf");
 zos.putNextEntry(ze);
 FileInputStream in = new FileInputStream("file.pdf");
 int len;
 while ((len = in.read(buffer)) &gt; 0) 
 {
 zos.write(buffer, 0, len);
 }
 in.close();
 zos.closeEntry();
 zos.close();
 }
 catch(IOException ex)
 {
 ex.printStackTrace();
 }
</code></pre>

blocks|key|1296038|text|Spring+boot控制器，将文件压缩到一个目录中，并可下载。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1296039|@RequestMapping(value+=+"/files.zip")
@ResponseBody
byte[]+filesZip()+throws+IOException+{
++++File+dir+=+new+File("./");
++++File[]+filesArray+=+dir.listFiles();
++++if+(filesArray+==+null+%7C%7C+filesArray.length+==+0)
++++++++System.out.println(dir.getAbsolutePath()+%2B+"+have+no+file!");
++++ByteArrayOutputStream+bo+=+new+ByteArrayOutputStream();
++++ZipOutputStream+zipOut=+new+ZipOutputStream(bo);
++++for(File+xlsFile:filesArray){
++++++++if(!xlsFile.isFile())continue;
++++++++ZipEntry+zipEntry+=+new+ZipEntry(xlsFile.getName());
++++++++zipOut.putNextEntry(zipEntry);
++++++++zipOut.write(IOUtils.toByteArray(new+FileInputStream(xlsFile)));
++++++++zipOut.closeEntry();
++++}
++++zipOut.close();
++++return+bo.toByteArray();
}|code-block|syntax|javascript|1296040|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Spring boot controller, zip the files in a directory, and can be downloaded.

<pre><code>@RequestMapping(value = "/files.zip")
@ResponseBody
byte[] filesZip() throws IOException {
 File dir = new File("./");
 File[] filesArray = dir.listFiles();
 if (filesArray == null || filesArray.length == 0)
 System.out.println(dir.getAbsolutePath() + " have no file!");
 ByteArrayOutputStream bo = new ByteArrayOutputStream();
 ZipOutputStream zipOut= new ZipOutputStream(bo);
 for(File xlsFile:filesArray){
 if(!xlsFile.isFile())continue;
 ZipEntry zipEntry = new ZipEntry(xlsFile.getName());
 zipOut.putNextEntry(zipEntry);
 zipOut.write(IOUtils.toByteArray(new FileInputStream(xlsFile)));
 zipOut.closeEntry();
 }
 zipOut.close();
 return bo.toByteArray();
}
</code></pre>

blocks|key|1510713|text|因为我花了一段时间才弄明白，所以我认为使用Java+7%2B+ZipFileSystem发布我的解决方案会很有帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1510714|+openZip(runFile);

+addToZip(filepath);+//loop+construct;++

+zipfs.close();

+private+void+openZip(File+runFile)+throws+IOException+{
++++Map<String,+String>+env+=+new+HashMap<>();
++++env.put("create",+"true");
++++env.put("encoding",+"UTF-8");
++++Files.deleteIfExists(runFile.toPath());
++++zipfs+=+FileSystems.newFileSystem(URI.create("jar:"+%2B+runFile.toURI().toString()),+env);++++
+}

+private+void+addToZip(String+filename)+throws+IOException+{
++++Path+externalTxtFile+=+Paths.get(filename).toAbsolutePath();
++++Path+pathInZipfile+=+zipfs.getPath(filename.substring(filename.lastIndexOf("results")));+//all+files+to+be+stored+have+a+common+base+folder,+results/+in+my+case
++++if+(Files.isDirectory(externalTxtFile))+{
++++++++Files.createDirectories(pathInZipfile);
++++++++try+(DirectoryStream<Path>+ds+=+Files.newDirectoryStream(externalTxtFile))+{
++++++++++++for+(Path+child+:+ds)+{
++++++++++++++++addToZip(child.normalize().toString());+//recursive+call
++++++++++++}
++++++++}
++++}+else+{
++++++++//+copy+file+to+zip+file
++++++++Files.copy(externalTxtFile,+pathInZipfile,+StandardCopyOption.REPLACE_EXISTING);++++++++++++
++++}
+}|code-block|syntax|javascript|1510715|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Since it took me a while to figure it out, I thought it would be helpful to post my solution using Java 7+ ZipFileSystem 

<pre><code> openZip(runFile);

 addToZip(filepath); //loop construct; 

 zipfs.close();

 private void openZip(File runFile) throws IOException {
 Map&lt;String, String&gt; env = new HashMap&lt;&gt;();
 env.put("create", "true");
 env.put("encoding", "UTF-8");
 Files.deleteIfExists(runFile.toPath());
 zipfs = FileSystems.newFileSystem(URI.create("jar:" + runFile.toURI().toString()), env); 
 }

 private void addToZip(String filename) throws IOException {
 Path externalTxtFile = Paths.get(filename).toAbsolutePath();
 Path pathInZipfile = zipfs.getPath(filename.substring(filename.lastIndexOf("results"))); //all files to be stored have a common base folder, results/ in my case
 if (Files.isDirectory(externalTxtFile)) {
 Files.createDirectories(pathInZipfile);
 try (DirectoryStream&lt;Path&gt; ds = Files.newDirectoryStream(externalTxtFile)) {
 for (Path child : ds) {
 addToZip(child.normalize().toString()); //recursive call
 }
 }
 } else {
 // copy file to zip file
 Files.copy(externalTxtFile, pathInZipfile, StandardCopyOption.REPLACE_EXISTING); 
 }
 }
</code></pre>

blocks|key|1510776|text|以下是从源文件创建zip文件的方式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1510777|String+srcFilename+=+"C:/myfile.txt";
String+zipFile+=+"C:/myfile.zip";

try+{
++++byte[]+buffer+=+new+byte[1024];
++++FileOutputStream+fos+=+new+FileOutputStream(zipFile);
++++ZipOutputStream+zos+=+new+ZipOutputStream(fos);+++++++++
++++File+srcFile+=+new+File(srcFilename);
++++FileInputStream+fis+=+new+FileInputStream(srcFile);
++++zos.putNextEntry(new+ZipEntry(srcFile.getName()));++++++++++
++++int+length;
++++while+((length+=+fis.read(buffer))+>+0)+{
++++++++zos.write(buffer,+0,+length);
++++}
++++zos.closeEntry();
++++fis.close();
++++zos.close();++++++++++++
}
catch+(IOException+ioe)+{
++++System.out.println("Error+creating+zip+file"+%2B+ioe);
}|code-block|syntax|javascript|1510778|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is how you create a zip file from a source file:

<pre><code>String srcFilename = "C:/myfile.txt";
String zipFile = "C:/myfile.zip";

try {
 byte[] buffer = new byte[1024];
 FileOutputStream fos = new FileOutputStream(zipFile);
 ZipOutputStream zos = new ZipOutputStream(fos); 
 File srcFile = new File(srcFilename);
 FileInputStream fis = new FileInputStream(srcFile);
 zos.putNextEntry(new ZipEntry(srcFile.getName())); 
 int length;
 while ((length = fis.read(buffer)) &gt; 0) {
 zos.write(buffer, 0, length);
 }
 zos.closeEntry();
 fis.close();
 zos.close(); 
}
catch (IOException ioe) {
 System.out.println("Error creating zip file" + ioe);
}
</code></pre>

blocks|key|1296188|text|单个文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1296189|String+filePath+=+"/absolute/path/file1.txt";
String+zipPath+=+"/absolute/path/output.zip";

try+(ZipOutputStream+zipOut+=+new+ZipOutputStream(new+FileOutputStream(zipPath)))+{
++++File+fileToZip+=+new+File(filePath);
++++zipOut.putNextEntry(new+ZipEntry(fileToZip.getName()));
++++Files.copy(fileToZip.toPath(),+zipOut);
}|code-block|syntax|javascript|1296190|多个文件：|1296191|List<String>+filePaths+=+Arrays.asList("/absolute/path/file1.txt",+"/absolute/path/file2.txt");
String+zipPath+=+"/absolute/path/output.zip";

try+(ZipOutputStream+zipOut+=+new+ZipOutputStream(new+FileOutputStream(zipPath)))+{
++++for+(String+filePath+:+filePaths)+{
++++++++File+fileToZip+=+new+File(filePath);
++++++++zipOut.putNextEntry(new+ZipEntry(fileToZip.getName()));
++++++++Files.copy(fileToZip.toPath(),+zipOut);
++++}
}|1296192|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Single file:

<pre><code>String filePath = "/absolute/path/file1.txt";
String zipPath = "/absolute/path/output.zip";

try (ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipPath))) {
 File fileToZip = new File(filePath);
 zipOut.putNextEntry(new ZipEntry(fileToZip.getName()));
 Files.copy(fileToZip.toPath(), zipOut);
}
</code></pre>

Multiple files:

<pre><code>List&lt;String&gt; filePaths = Arrays.asList("/absolute/path/file1.txt", "/absolute/path/file2.txt");
String zipPath = "/absolute/path/output.zip";

try (ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipPath))) {
 for (String filePath : filePaths) {
 File fileToZip = new File(filePath);
 zipOut.putNextEntry(new ZipEntry(fileToZip.getName()));
 Files.copy(fileToZip.toPath(), zipOut);
 }
}
</code></pre>

blocks|key|1296227|text|public+static+void+zipFromTxt(String+zipFilePath,+String+txtFilePath)+{
++++Assert.notNull(zipFilePath,+"Zip+file+path+is+required");
++++Assert.notNull(txtFilePath,+"Txt+file+path+is+required");
++++zipFromTxt(new+File(zipFilePath),+new+File(txtFilePath));
}

public+static+void+zipFromTxt(File+zipFile,+File+txtFile)+{
++++ZipOutputStream+out+=+null;
++++FileInputStream+in+=+null;
++++try+{
++++++++Assert.notNull(zipFile,+"Zip+file+is+required");
++++++++Assert.notNull(txtFile,+"Txt+file+is+required");
++++++++out+=+new+ZipOutputStream(new+FileOutputStream(zipFile));
++++++++in+=+new+FileInputStream(txtFile);
++++++++out.putNextEntry(new+ZipEntry(txtFile.getName()));
++++++++int+len;
++++++++byte[]+buffer+=+new+byte[1024];
++++++++while+((len+=+in.read(buffer))+>+0)+{
++++++++++++out.write(buffer,+0,+len);
++++++++++++out.flush();
++++++++}
++++}+catch+(Exception+e)+{
++++++++log.info("Zip+from+txt+occur+error,Detail+message:{}",+e.toString());
++++}+finally+{
++++++++try+{
++++++++++++if+(in+!=+null)+in.close();
++++++++++++if+(out+!=+null)+{
++++++++++++++++out.closeEntry();
++++++++++++++++out.close();
++++++++++++}
++++++++}+catch+(Exception+e)+{
++++++++++++log.info("Zip+from+txt+close+error,Detail+message:{}",+e.toString());
++++++++}
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1296228|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>public static void zipFromTxt(String zipFilePath, String txtFilePath) {
 Assert.notNull(zipFilePath, "Zip file path is required");
 Assert.notNull(txtFilePath, "Txt file path is required");
 zipFromTxt(new File(zipFilePath), new File(txtFilePath));
}

public static void zipFromTxt(File zipFile, File txtFile) {
 ZipOutputStream out = null;
 FileInputStream in = null;
 try {
 Assert.notNull(zipFile, "Zip file is required");
 Assert.notNull(txtFile, "Txt file is required");
 out = new ZipOutputStream(new FileOutputStream(zipFile));
 in = new FileInputStream(txtFile);
 out.putNextEntry(new ZipEntry(txtFile.getName()));
 int len;
 byte[] buffer = new byte[1024];
 while ((len = in.read(buffer)) &gt; 0) {
 out.write(buffer, 0, len);
 out.flush();
 }
 } catch (Exception e) {
 log.info("Zip from txt occur error,Detail message:{}", e.toString());
 } finally {
 try {
 if (in != null) in.close();
 if (out != null) {
 out.closeEntry();
 out.close();
 }
 } catch (Exception e) {
 log.info("Zip from txt close error,Detail message:{}", e.toString());
 }
 }
}
</code></pre>

blocks|key|1296251|text|给定exportPath和queryResults作为字符串变量，下面的代码块在exportPath下创建一个results.zip文件，并将queryResults的内容写入压缩包中的一个results.txt文件。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1296252|URI+uri+=+URI.create("jar:file:"+%2B+exportPath+%2B+"/results.zip");
Map<String,+String>+env+=+Collections.singletonMap("create",+"true");

try+(FileSystem+zipfs+=+FileSystems.newFileSystem(uri,+env))+{
++Path+filePath+=+zipfs.getPath("/results.txt");
++byte[]+fileContent+=+queryResults.getBytes();

++Files.write(filePath,+fileContent,+StandardOpenOption.CREATE);
}|code-block|syntax|javascript|1296253|entityMap^0|2|A|D|C|14|A|1J|B|1Z|C|2N|B|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|L|$]]

Given <code>exportPath</code> and <code>queryResults</code> as String variables, the following block creates a <code>results.zip</code> file under <code>exportPath</code> and writes the content of <code>queryResults</code> to a <code>results.txt</code> file inside the zip.

<pre><code>URI uri = URI.create("jar:file:" + exportPath + "/results.zip");
Map&lt;String, String&gt; env = Collections.singletonMap("create", "true");

try (FileSystem zipfs = FileSystems.newFileSystem(uri, env)) {
 Path filePath = zipfs.getPath("/results.txt");
 byte[] fileContent = queryResults.getBytes();

 Files.write(filePath, fileContent, StandardOpenOption.CREATE);
}
</code></pre>

blocks|key|1296321|text|您主要需要创建两个函数。第一个是writeToZipFile()，第二个是createZipfileForOutPut+...然后调用createZipfileForOutPut(‘.zip的文件名’)`…|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1296322|+public+static+void+writeToZipFile(String+path,+ZipOutputStream+zipStream)
++++++++throws+FileNotFoundException,+IOException+{

++++System.out.println("Writing+file+:+'"+%2B+path+%2B+"'+to+zip+file");

++++File+aFile+=+new+File(path);
++++FileInputStream+fis+=+new+FileInputStream(aFile);
++++ZipEntry+zipEntry+=+new+ZipEntry(path);
++++zipStream.putNextEntry(zipEntry);

++++byte[]+bytes+=+new+byte[1024];
++++int+length;
++++while+((length+=+fis.read(bytes))+>=+0)+{
++++++++zipStream.write(bytes,+0,+length);
++++}

++++zipStream.closeEntry();
++++fis.close();
}

public+static+void+createZipfileForOutPut(String+filename)+{
++++String+home+=+System.getProperty("user.home");
+++//+File+directory+=+new+File(home+%2B+"/Documents/"+%2B+"AutomationReport");
++++File+directory+=+new+File("AutomationReport");
++++if+(!directory.exists())+{
++++++++directory.mkdir();
++++}
++++try+{
++++++++FileOutputStream+fos+=+new+FileOutputStream("Path+to+your+destination"+%2B+filename+%2B+".zip");
++++++++ZipOutputStream+zos+=+new+ZipOutputStream(fos);

++++++++writeToZipFile("Path+to+file+which+you+want+to+compress+/+zip",+zos);


++++++++zos.close();
++++++++fos.close();
++++}+catch+(FileNotFoundException+e)+{
++++++++e.printStackTrace();
++++}+catch+(IOException+e)+{
++++++++e.printStackTrace();
++++}
}|code-block|syntax|javascript|1296323|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You have mainly to create two functions. First is writeToZipFile() and second is createZipfileForOutPut .... and then call the createZipfileForOutPut('file name of .zip')` …

<pre><code> public static void writeToZipFile(String path, ZipOutputStream zipStream)
 throws FileNotFoundException, IOException {

 System.out.println("Writing file : '" + path + "' to zip file");

 File aFile = new File(path);
 FileInputStream fis = new FileInputStream(aFile);
 ZipEntry zipEntry = new ZipEntry(path);
 zipStream.putNextEntry(zipEntry);

 byte[] bytes = new byte[1024];
 int length;
 while ((length = fis.read(bytes)) &gt;= 0) {
 zipStream.write(bytes, 0, length);
 }

 zipStream.closeEntry();
 fis.close();
}

public static void createZipfileForOutPut(String filename) {
 String home = System.getProperty("user.home");
 // File directory = new File(home + "/Documents/" + "AutomationReport");
 File directory = new File("AutomationReport");
 if (!directory.exists()) {
 directory.mkdir();
 }
 try {
 FileOutputStream fos = new FileOutputStream("Path to your destination" + filename + ".zip");
 ZipOutputStream zos = new ZipOutputStream(fos);

 writeToZipFile("Path to file which you want to compress / zip", zos);


 zos.close();
 fos.close();
 } catch (FileNotFoundException e) {
 e.printStackTrace();
 } catch (IOException e) {
 e.printStackTrace();
 }
}
</code></pre>

blocks|key|1296383|text|使用Jeka+https://jeka.dev+JkPathTree，它非常简单。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1296384|Path+wholeDirToZip+=+Paths.get("dir/to/zip");
Path+zipFile+=+Paths.get("file.zip");
JkPathTree.of(wholeDirToZip).zipTo(zipFile);|code-block|syntax|javascript|1296385|entityMap|0|LINK|mutability|MUTABLE|url|https://jeka.dev/^0|7|G|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

Using Jeka <a href="https://jeka.dev" rel="nofollow noreferrer">https://jeka.dev</a> JkPathTree, it's quite straightforward.

<pre><code>Path wholeDirToZip = Paths.get("dir/to/zip");
Path zipFile = Paths.get("file.zip");
JkPathTree.of(wholeDirToZip).zipTo(zipFile);
</code></pre>

blocks|key|1296519|text|在https://github.com/srikanth-lingala/zip4j上使用zip4j还有另一种选择|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1296520|创建一个包含单个文件的zip文件/将单个文件添加到现有zip中|1296521|new+ZipFile("filename.zip").addFile("filename.ext");或|1296522|new+ZipFile("filename.zip").addFile(new+File("filename.ext"));|1296523|创建包含多个文件的zip文件/向现有zip添加多个文件|1296524|new+ZipFile("filename.zip").addFiles(Arrays.asList(new+File("first_file"),+new+File("second_file")));|1296525|通过向其添加文件夹来创建zip文件/向现有zip添加文件夹|1296526|new+ZipFile("filename.zip").addFolder(new+File("/user/myuser/folder_to_add"));|1296527|从流创建压缩文件/将流添加到现有的压缩new+ZipFile("filename.zip").addStream(inputStream,+new+ZipParameters());|1296528|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/srikanth-lingala/zip4j^0|19|5|1|15|0|0|0|0|1G|0|0|1Q|0|0|0|2T|0|0|0|26|0|J|20|0^^$0|@$1|2|3|4|5|6|7|13|8|@$9|14|A|15|B|C]]|D|@$9|16|A|17|1|18]]|E|$]]|$1|F|3|G|5|6|7|19|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|1D|8|@$9|1E|A|1F|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|1G|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|1H|8|@$9|1I|A|1J|B|C]]|D|@]|E|$]]|$1|P|3|Q|5|6|7|1K|8|@]|D|@]|E|$]]|$1|R|3|S|5|6|7|1L|8|@$9|1M|A|1N|B|C]]|D|@]|E|$]]|$1|T|3|U|5|6|7|1O|8|@$9|1P|A|1Q|B|C]]|D|@]|E|$]]|$1|V|3|-4|5|6|7|1R|8|@]|D|@]|E|$]]]|W|$X|$5|Y|Z|10|E|$11|12]]]]

There is another option by using <code>zip4j</code> at <a href="https://github.com/srikanth-lingala/zip4j" rel="nofollow noreferrer">https://github.com/srikanth-lingala/zip4j</a>

Creating a zip file with single file in it / Adding single file to an existing zip

<code>new ZipFile("filename.zip").addFile("filename.ext");</code>
 Or

<code>new ZipFile("filename.zip").addFile(new File("filename.ext"));</code>

Creating a zip file with multiple files / Adding multiple files to an existing zip

<code>new ZipFile("filename.zip").addFiles(Arrays.asList(new File("first_file"), new File("second_file")));</code>

Creating a zip file by adding a folder to it / Adding a folder to an existing zip

<code>new ZipFile("filename.zip").addFolder(new File("/user/myuser/folder_to_add"));</code>

Creating a zip file from stream / Adding a stream to an existing zip
<code>new ZipFile("filename.zip").addStream(inputStream, new ZipParameters());</code>

blocks|key|1511266|text|我知道这个问题已经得到了回答，但是如果您有一个字符串列表，并且希望为归档中的每个字符串创建一个单独的文件，您可以使用下面的代码片段。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1511267|public+void+zipFileTest()+throws+IOException+{

++++Map<String,+String>+map+=+Map.ofEntries(
++++++++++++new+AbstractMap.SimpleEntry<String,+String>("File1.txt",+"File1+Content"),
++++++++++++new+AbstractMap.SimpleEntry<String,+String>("File2.txt",+"File2+Content"),
++++++++++++new+AbstractMap.SimpleEntry<String,+String>("File3.txt",+"File3+Content")
++++);

++++createZipFileFromStringContents(map,+"archive.zip");

}

public+void+createZipFileFromStringContents(Map<String,+String>+map,+String+zipfilePath)+throws+IOException+{

++++FileOutputStream+fout+=+new+FileOutputStream(zipfilePath);
++++ZipOutputStream+zout+=+new+ZipOutputStream(fout);

++++for+(Map.Entry<String,+String>+entry+:+map.entrySet())+{
++++++++String+fileName+=+entry.getKey();
++++++++ZipEntry+zipFile+=+new+ZipEntry(fileName);
++++++++zout.putNextEntry(zipFile);
++++++++String+fileContent+=+entry.getValue();
++++++++zout.write(fileContent.getBytes(),+0,+fileContent.getBytes().length);
++++++++zout.closeEntry();
++++}

++++zout.close();
}|code-block|syntax|javascript|1511268|它将创建一个结构如下图所示的zip文件：|1511269|​|1511270|📷|atomic|offset|length|1511271|1511272|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/bc350367544a3c25ac4b1fff5a163439.png|imageAlt^0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|11|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|12|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|13|8|@]|9|@$N|14|O|15|1|16]]|A|$]]|$1|P|3|J|5|6|7|17|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X|Y|-4]]]]

I know this question is answered but if you have a list of strings and you want to create a separate file for each string in the archive, you can use the snippet below.
<pre><code>public void zipFileTest() throws IOException {

 Map&lt;String, String&gt; map = Map.ofEntries(
 new AbstractMap.SimpleEntry&lt;String, String&gt;(&quot;File1.txt&quot;, &quot;File1 Content&quot;),
 new AbstractMap.SimpleEntry&lt;String, String&gt;(&quot;File2.txt&quot;, &quot;File2 Content&quot;),
 new AbstractMap.SimpleEntry&lt;String, String&gt;(&quot;File3.txt&quot;, &quot;File3 Content&quot;)
 );

 createZipFileFromStringContents(map, &quot;archive.zip&quot;);

}

public void createZipFileFromStringContents(Map&lt;String, String&gt; map, String zipfilePath) throws IOException {

 FileOutputStream fout = new FileOutputStream(zipfilePath);
 ZipOutputStream zout = new ZipOutputStream(fout);

 for (Map.Entry&lt;String, String&gt; entry : map.entrySet()) {
 String fileName = entry.getKey();
 ZipEntry zipFile = new ZipEntry(fileName);
 zout.putNextEntry(zipFile);
 String fileContent = entry.getValue();
 zout.write(fileContent.getBytes(), 0, fileContent.getBytes().length);
 zout.closeEntry();
 }

 zout.close();
}
</code></pre>
It will create a zip file with the structure as in the below image:
<a href="https://i.stack.imgur.com/1QzP6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1QzP6.png" alt="zip file structure" /></a>

blocks|key|1511322|text|以下是我的工作解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1511323|public+static+byte[]+createZipFile(Map<String,+FileData>+files)+throws+IOException+{
++++try(ByteArrayOutputStream+tZipFile+=+new+ByteArrayOutputStream())+{
++++++++try+(ZipOutputStream+tZipFileOut+=+new+ZipOutputStream(tZipFile))+{
++++++++++++for+(Map.Entry<String,+FileData>+file+:+files.entrySet())+{
++++++++++++++++ZipEntry+zipEntry+=+new+ZipEntry(file.getValue().getFileName());
++++++++++++++++tZipFileOut.putNextEntry(zipEntry);
++++++++++++++++tZipFileOut.write(file.getValue().getBytes());
++++++++++++}
++++++++}

++++++++return+tZipFile.toByteArray();
++++}
}

public+class+FileData+{
++++private+String+fileName;
++++private+byte[]+bytes;

++++public+String+getFileName()+{
++++++++return+this.fileName;
++++}

++++public+byte[]+getBytes()+{
++++++++return+this.bytes;
++++}
}|code-block|syntax|javascript|1511324|这将创建包含一个或多个压缩文件的ZIP文件的byte[]。我已经在控制器方法中使用了这种方法，并将ZIP文件的bytes[]写入响应，以便从服务器下载ZIP文件。|1511325|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Here is my working solution:
<pre><code>public static byte[] createZipFile(Map&lt;String, FileData&gt; files) throws IOException {
 try(ByteArrayOutputStream tZipFile = new ByteArrayOutputStream()) {
 try (ZipOutputStream tZipFileOut = new ZipOutputStream(tZipFile)) {
 for (Map.Entry&lt;String, FileData&gt; file : files.entrySet()) {
 ZipEntry zipEntry = new ZipEntry(file.getValue().getFileName());
 tZipFileOut.putNextEntry(zipEntry);
 tZipFileOut.write(file.getValue().getBytes());
 }
 }

 return tZipFile.toByteArray();
 }
}

public class FileData {
 private String fileName;
 private byte[] bytes;

 public String getFileName() {
 return this.fileName;
 }

 public byte[] getBytes() {
 return this.bytes;
 }
}
</code></pre>
This will create byte[] of ZIP file which contains one or more compressed files. I've used this method inside controller method and write bytes[] of ZIP file into response to download ZIP file(s) from server.

I have a dynamic text file that picks content from a database according to the user's query. I have to write this content into a text file and zip it in a folder in a servlet. How should I do this?

How to create a zip file in Java

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我有一个动态文本文件，它根据用户的查询从数据库中挑选内容。我必须将这些内容写入一个文本文件，然后将其压缩到servlet的文件夹中。我该怎么做呢？

问如何在Java中创建zip文件
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