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2 »¹ÊÇjavascript£¬½«Ìá½»°´Å¥»òÕßimageÖÃΪdisable
onsubmit="getElById('submitInput').disabled = true; return true;">
3 ÀûÓÃstrutsµÄͬ²½ÁîÅÆ»úÖÆ
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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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errors.add(ActionErrors.GLOBAL_ERROR,
new ActionError("error.transaction.token"));
resetToken(request); //ɾ³ýsessionÖеÄÁîÅÆ
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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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