使用zip4j加密和解密文件和目录

2015/07/24 49279

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闲话少说，直接看工具类：

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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：
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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:
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<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