[BAEL-5033] How to create Password-protected Zip files and Unzip them in Java (#11066)

vunamtien · tienvn4 · web-flow · commit b80ed90d5c35 · 2021-08-01T08:46:51.000+02:00
Co-authored-by: tienvn4 &lt;tienvn4@ghtk.co&gt;
diff --git a/libraries-io/pom.xml b/libraries-io/pom.xml
@@ -29,6 +29,11 @@
             <artifactId>commons-vfs2</artifactId>
             <version>${vfs.version}</version>
         </dependency>
+        <dependency>
+            <groupId>net.lingala.zip4j</groupId>
+            <artifactId>zip4j</artifactId>
+            <version>2.9.0</version>
+        </dependency>
     </dependencies>
 
     <properties>
diff --git a/libraries-io/src/main/java/com/baeldung/java/io/zip4j/CreateSplitZipFile.java b/libraries-io/src/main/java/com/baeldung/java/io/zip4j/CreateSplitZipFile.java
@@ -0,0 +1,22 @@
+package com.baeldung.java.io.zip4j;
+
+import net.lingala.zip4j.ZipFile;
+import net.lingala.zip4j.exception.ZipException;
+import net.lingala.zip4j.model.ZipParameters;
+import net.lingala.zip4j.model.enums.EncryptionMethod;
+
+import java.io.File;
+import java.util.Arrays;
+
+public class CreateSplitZipFile {
+
+    public static void main(String[] args) throws ZipException {
+        ZipParameters zipParameters = new ZipParameters();
+        zipParameters.setEncryptFiles(true);
+        zipParameters.setEncryptionMethod(EncryptionMethod.AES);
+        ZipFile zipFile = new ZipFile("compressed.zip", "password".toCharArray());
+        int splitLength = 1024 * 1024 * 10; //10MB
+        zipFile.createSplitZipFile(Arrays.asList(new File("aFile.txt")), zipParameters, true, splitLength);
+        zipFile.createSplitZipFileFromFolder(new File("/users/folder_to_add"), zipParameters, true, splitLength);
+    }
+}
diff --git a/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ExtractAllFile.java b/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ExtractAllFile.java
@@ -0,0 +1,12 @@
+package com.baeldung.java.io.zip4j;
+
+import net.lingala.zip4j.ZipFile;
+import net.lingala.zip4j.exception.ZipException;
+
+public class ExtractAllFile {
+
+    public static void main(String[] args) throws ZipException {
+        ZipFile zipFile = new ZipFile("compressed.zip", "password".toCharArray());
+        zipFile.extractAll("/destination_directory");
+    }
+}
diff --git a/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ExtractSingleFile.java b/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ExtractSingleFile.java
@@ -0,0 +1,12 @@
+package com.baeldung.java.io.zip4j;
+
+import net.lingala.zip4j.ZipFile;
+import net.lingala.zip4j.exception.ZipException;
+
+public class ExtractSingleFile {
+
+    public static void main(String[] args) throws ZipException {
+        ZipFile zipFile = new ZipFile("compressed.zip", "password".toCharArray());
+        zipFile.extractFile("aFile.txt", "/destination_directory");
+    }
+}
diff --git a/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ZipFolder.java b/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ZipFolder.java
@@ -0,0 +1,19 @@
+package com.baeldung.java.io.zip4j;
+
+import net.lingala.zip4j.ZipFile;
+import net.lingala.zip4j.exception.ZipException;
+import net.lingala.zip4j.model.ZipParameters;
+import net.lingala.zip4j.model.enums.EncryptionMethod;
+
+import java.io.File;
+
+public class ZipFolder {
+
+    public static void main(String[] args) throws ZipException {
+        ZipParameters zipParameters = new ZipParameters();
+        zipParameters.setEncryptFiles(true);
+        zipParameters.setEncryptionMethod(EncryptionMethod.AES);
+        ZipFile zipFile = new ZipFile("compressed.zip", "password".toCharArray());
+        zipFile.addFolder(new File("/users/folder_to_add"), zipParameters);
+    }
+}
diff --git a/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ZipMultiFile.java b/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ZipMultiFile.java
@@ -0,0 +1,27 @@
+package com.baeldung.java.io.zip4j;
+
+import net.lingala.zip4j.ZipFile;
+import net.lingala.zip4j.exception.ZipException;
+import net.lingala.zip4j.model.ZipParameters;
+import net.lingala.zip4j.model.enums.EncryptionMethod;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.List;
+
+public class ZipMultiFile {
+
+    public static void main(String[] args) throws ZipException {
+        ZipParameters zipParameters = new ZipParameters();
+        zipParameters.setEncryptFiles(true);
+        zipParameters.setEncryptionMethod(EncryptionMethod.AES);
+
+        List<File> filesToAdd = Arrays.asList(
+                new File("aFile.txt"),
+                new File("bFile.txt")
+        );
+
+        ZipFile zipFile = new ZipFile("compressed.zip", "password".toCharArray());
+        zipFile.addFiles(filesToAdd, zipParameters);
+    }
+}
diff --git a/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ZipSingleFile.java b/libraries-io/src/main/java/com/baeldung/java/io/zip4j/ZipSingleFile.java
@@ -0,0 +1,21 @@
+package com.baeldung.java.io.zip4j;
+
+import net.lingala.zip4j.ZipFile;
+import net.lingala.zip4j.exception.ZipException;
+import net.lingala.zip4j.model.ZipParameters;
+import net.lingala.zip4j.model.enums.CompressionLevel;
+import net.lingala.zip4j.model.enums.EncryptionMethod;
+
+import java.io.File;
+
+public class ZipSingleFile {
+
+    public static void main(String[] args) throws ZipException {
+        ZipParameters zipParameters = new ZipParameters();
+        zipParameters.setEncryptFiles(true);
+        zipParameters.setCompressionLevel(CompressionLevel.HIGHER);
+        zipParameters.setEncryptionMethod(EncryptionMethod.AES);
+        ZipFile zipFile = new ZipFile("compressed.zip", "password".toCharArray());
+        zipFile.addFile(new File("aFile.txt"));
+    }
+}
