desaction2.java

文件的加密解密代码主要是针对于DES和3DES MD5加密解密算法的功能实现

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.zrx.struts.action;

import java.io.File;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.zrx.Util.DoubleDesUtil;
import com.zrx.struts.form.DesForm2;

public class DesAction2 extends Action {

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		DesForm2 desForm = (DesForm2) form;
		// 得到文件路径
		String fileName = desForm.getFilename();
		System.out.println(fileName);
		String key = desForm.getKey();
		System.out.println(key);
		// 得到文件名
		String fileShortName = fileName.substring(fileName.lastIndexOf("\\"));
		System.out.println(fileShortName);

		request.getSession().setAttribute("key2", key);

		DoubleDesUtil du = new DoubleDesUtil();
		String met2 = request.getParameter("met2");

		File file = new File(fileName);
		if (met2.equals("en")) {
			du.encrypt(file, key);
		}
		if (met2.equals("de")) {
			du.decrypt(file, key, "d:/"
					+ fileShortName
							.substring(0, fileShortName.lastIndexOf(".")));
		}

		return mapping.findForward("ok");
	}
}