加密算法

private static final byte[] DES_KEY = { 21, 1, -110, 82, -32, -85, -128, -65 };@SuppressWarnings("restriction")
//加密算法public static String encryptBasedDes(String data) {String encryptedData = null;try {// DES算法要求有一個可信任的隨機數源SecureRandom sr = new SecureRandom();DESKeySpec deskey = new DESKeySpec(DES_KEY);// 創(chuàng)建一個密匙工廠，然后用它把DESKeySpec轉換成一個SecretKey對象SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");SecretKey key = keyFactory.generateSecret(deskey);// 加密對象Cipher cipher = Cipher.getInstance("DES");cipher.init(Cipher.ENCRYPT_MODE, key, sr);// 加密，并把字節(jié)數組編碼成字符串encryptedData = new sun.misc.BASE64Encoder().encode(cipher.doFinal(data.getBytes()));} catch (Exception e) {// log.error("加密錯誤，錯誤信息：", e);throw new RuntimeException("加密錯誤，錯誤信息：", e);}return encryptedData;}
//解密算法@SuppressWarnings("restriction")public static String decryptBasedDes(String cryptData) {String decryptedData = null;try {// DES算法要求有一個可信任的隨機數源SecureRandom sr = new SecureRandom();DESKeySpec deskey = new DESKeySpec(DES_KEY);// 創(chuàng)建一個密匙工廠，然后用它把DESKeySpec轉換成一個SecretKey對象SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");SecretKey key = keyFactory.generateSecret(deskey);// 解密對象Cipher cipher = Cipher.getInstance("DES");cipher.init(Cipher.DECRYPT_MODE, key, sr);// 把字符串進行解碼，解碼為為字節(jié)數組，并解密decryptedData = new String(cipher.doFinal(new sun.misc.BASE64Decoder().decodeBuffer(cryptData)));} catch (Exception e) {throw new RuntimeException("解密錯誤，錯誤信息：", e);}return decryptedData;
} //注冊功能@RequestMapping(value = "/register")public ModelAndView register(Management management) {ModelAndView mv = new ModelAndView();Management management1 =managementRepository.findByManagementPhone(management.getManagementPhone());List<Management> management2 = managementRepository.findAll();int lastpage=management2.size()/8;if (management1==null){management.setManagementPass(encryptBasedDes(management.getManagementPass()));managementRepository.save(management);}else {management.setManagementID(management1.getManagementID());management.setManagementPass(encryptBasedDes(management.getManagementPass()));managementRepository.save(management);}return new ModelAndView("redirect:/management/show?page="+lastpage);}

　　

//登錄 @RequestMapping(value = "/loginManagement")public ModelAndView login(Management management, HttpSession sessoin) {ModelAndView mv = new ModelAndView();//判斷所輸入賬號密碼是否匹配//如果匹配成功management.setManagementPass(encryptBasedDes(management.getManagementPass()));if (managementService.verifyManagement(management)) {//通過名字和密碼找到該Management，并存進sessionManagement management1=managementRepository.findByManagementPhoneAndAndManagementPass(management.getManagementPhone(), management.getManagementPass()).get(0);sessoin.setAttribute("management", management1);//測試從session獲取該Management判定權限Management test=(Management)sessoin.getAttribute("management");switch (management1.getManagementRole()){case "1":mv.setViewName("");break;case "2":case "3":mv.setViewName("");break;}mv.setViewName("/success.btl");return mv;}//如果匹配不成功else {mv.setViewName("/login.btl");return mv;}

　　

　　

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轉載于:https://www.cnblogs.com/zhu573514187/p/9439403.html

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