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1 javascript £¬ÉèÖÃÒ»¸ö±äÁ¿£¬Ö»ÔÊÐíÌá½»Ò»´Î¡£
2 »¹ÊÇjavascript£¬½«Ìá½»°´Å¥»òÕßimageÖÃΪdisable
onsubmit="getElById('submitInput').disabled = true; return true;">
3 ÀûÓÃstrutsµÄͬ²½ÁîÅÆ»úÖÆ
ÀûÓÃͬ²½ÁîÅÆ£¨Token£©»úÖÆÀ´½â¾öWebÓ¦ÓÃÖÐÖظ´Ìá½»µÄÎÊÌ⣬StrutsÒ²¸ø³öÁËÒ»¸ö²Î¿¼ÊµÏÖ¡£
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if (isTokenValid(request, true)) {
// your code here
return mapping.findForward("success");
} else {
saveToken(request);
return mapping.findForward("submitagain");
}
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2. ÔÚactionÖУº
//
// value="6aa35341f25184fd996c4c918255c3ae">
if (!isTokenValid(request))
errors.add(ActionErrors.GLOBAL_ERROR,
new ActionError("error.transaction.token"));
resetToken(request); //ɾ³ýsessionÖеÄÁîÅÆ
3. actionÓÐÕâÑùµÄÒ»¸ö·½·¨Éú³ÉÁîÅÆ
protected String generateToken(HttpServletRequest request) {
HttpSession session = request.getSession();
try {
byte id[] = session.getId().getBytes();
byte now[] =
new Long(System.currentTimeMillis()).toString().getBytes();
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(id);
md.update(now
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