闲话少说，直接看工具类：

package com.ilucky.zip4j.util;    import java.io.File;    import net.lingala.zip4j.core.ZipFile;  import net.lingala.zip4j.exception.ZipException;  import net.lingala.zip4j.model.ZipParameters;  import net.lingala.zip4j.util.Zip4jConstants;    /**   * @author IluckySi   * @since 20150723   */  public class Zip4jUtil {        private String srcPath;      private String dstPath;      private String password = "123456";        public String getSrcPath() {          return srcPath;      }      public void setSrcPath(String srcPath) {          this.srcPath = srcPath;      }      public String getDstPath() {          return dstPath;      }      public void setDstPath(String dstPath) {          this.dstPath = dstPath;      }      public String getPassword() {          return password;      }      public void setPassword(String password) {          this.password = password;      }        /**       * 加密       * 支持将某个文件或某个目录下所有的文件加密.       * 1.某个文件:D:\\test\\src.zip.       * 2某个目录:D:\\test\\src       * @return boolean       */      public boolean encrypt() {          try {              if(!new File(srcPath).exists()) {                  System.out.println("源路径不存在 "+srcPath);                  return false;              }              ZipParameters parameters = new ZipParameters();                parameters.setEncryptFiles(true);                parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_AES);                parameters.setAesKeyStrength(Zip4jConstants.AES_STRENGTH_256);                parameters.setPassword(password.toCharArray());                File srcFile = new File(srcPath);              ZipFile destFile = new ZipFile(dstPath);                if(srcFile.isDirectory()) {                   destFile.addFolder(srcFile, parameters);                } else {                  destFile.addFile(srcFile, parameters);               }              System.out.println("成功加密文件");              return true;          } catch (Exception e) {              System.out.println("加密文件发生异常:"+e);              return false;          }      }        /**       * 解密       * 支持将某个加密文件解压缩到某个指定目录下面.       * @return boolean       */      public boolean decrypt() {           try {               if(!new File(srcPath).exists()) {                   System.out.println("源路径不存在 "+srcPath);                  return false;               }               ZipFile srcFile = new ZipFile(srcPath);                 srcFile.setFileNameCharset("GBK");                 srcFile.setPassword(password.toCharArray());                 srcFile.extractAll(dstPath);               System.out.println("成功解密文件");               return true;          } catch (ZipException e) {              System.out.println("解密文件发生异常:"+e);              return false;          }      }  }

然后看测试类：

package com.ilucky.zip4j.util;    /**   * @author IluckySi   * @since 20150723   */  public class MainTest {        public static void main(String[] args) {           //加密.          Zip4jUtil zip4jUtil  = new Zip4jUtil();          zip4jUtil.setSrcPath("D:\\test\\src.zip");          zip4jUtil.setDstPath("D:\\test\\dst.zip");          zip4jUtil.setPassword("123");          zip4jUtil.encrypt();            //解密.          zip4jUtil.setSrcPath("D:\\test\\dst.zip");          zip4jUtil.setDstPath("D:\\test\\");          zip4jUtil.setPassword("123");          //zip4jUtil.decrypt();      }  }

最后看pom文件:

 <dependency>          <groupId>net.lingala.zip4j</groupId>          <artifactId>zip4j</artifactId>          <version>1.3.2</version>      </dependency>

来自：http://blog.csdn.net/sidongxue2/article/details/47026909