使用zip4j加密和解密文件和目錄

閑話少說，直接看工具類：

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
支持將某個文件或某個目錄下所有的文件加密.
1.某個文件:D:\test\src.zip.
2某個目錄:D:\test\src
@return boolean
*/
public boolean encrypt() {
 try {

 if(!new File(srcPath).exists()) {
     System.out.println("源路徑不存在 "+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("加密文件發生異常:"+e);
 return false;

}
}
/**

解密
支持將某個加密文件解壓縮到某個指定目錄下面.
@return boolean
*/
public boolean decrypt() {
  try {
  if(!new File(srcPath).exists()) {
      System.out.println("源路徑不存在 "+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("解密文件發生異常:"+e);
 return false;

 }
}
}</pre> 

 然后看測試類： 
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();

}
}</pre> 

 最后看pom文件: 
 <dependency>


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

</dependency></pre> 

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