問題描述

1.在添加cookie的時候報錯：

An invalid character [13] was present in the Cookie value

在網上查了一些報錯，大部分都是[32]、[44]，據說是因為cookie里面添加了“,”或者空格導致的。

登陸處理的代碼是這樣的：

//登錄處理 @RequestMapping(value = '/login/validate', method = RequestMethod.POST) public void Validate(@RequestParam('username') String username, @RequestParam('password') String password, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) {String md5 = MD5Util.stringToMD5(password);if (userService.verification(username, md5)) { User user = userService.selectByUsername(username); Long id = user.getId(); Long createDate = new Date().getTime(); String str = id + '=' + createDate; //加密 byte[] result = DESUtil.desCrypto(str, '12345678'); //把加密的字節數組轉換成16進制// String results = TypeUtil.bytesToHexString(result); String results = Base64.encodeBase64String(result); Cookie cookie = new Cookie('token', results); cookie.setMaxAge(60 * 60 * 24 * 7);//7天 cookie.setPath('/'); System.out.println('新生成cookie和其MaxAge：' + cookie.getName() + '-->' + cookie.getMaxAge()); httpServletResponse.addCookie(cookie); HttpSession session = httpServletRequest.getSession(); session.setAttribute('user', user); for (Cookie c : httpServletRequest.getCookies()) {System.out.println('cookes添加到response后重新獲取cookies和其MaxAge：' + c.getName() + '-->' + c.getMaxAge()); } try {httpServletResponse.sendRedirect('/index.html');//httpServletRequest.getRequestDispatcher('/index.html').forward(httpServletRequest, httpServletResponse); } catch (Exception e) {e.printStackTrace(); }} else { try {httpServletResponse.sendRedirect('no.html'); } catch (IOException e) {e.printStackTrace(); }} }

報錯的地方發生在addCookie這里。

問題解答

經過嘗試，把原來的代碼2注釋，1 放開就可以了，哪位大佬可以解釋一下啊

1. String results = TypeUtil.bytesToHexString(result);2. //String results = Base64.encodeBase64String(result);