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2 »¹ÊÇjavascript£¬½«Ìá½»°´Å¥»òÕßimageÖÃΪdisable
onsubmit="getElById('submitInput').disabled = true; return true;">
3 ÀûÓÃstrutsµÄͬ²½ÁîÅÆ»úÖÆ
ÀûÓÃͬ²½ÁîÅÆ£¨Token£©»úÖÆÀ´½â¾öWebÓ¦ÓÃÖÐÖØ¸´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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1. //ÑéÖ¤ÊÂÎñ¿ØÖÆÁîÅÆ,»á×Ô¶¯¸ù¾ÝsessionÖбêʶÉú³ÉÒ»¸öÒþº¬input´ú±íÁîÅÆ£¬·ÀÖ¹Á½´ÎÌá½»
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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Date time= new java.sql.Date(new java.util.Date().getTime());
µÚ¶þÖÖ:
java ÓÃPreparedStatementÀ´setDate,ÓÃÎʺŵÄÐÎʽ¸øÈÕÆÚÎʺŸ³Öµ
pstmt.setTimestamp(8, new Timestamp(System.currentTimeMillis()));
pst ......
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/> <!--URLEncoding=""--> ± ......
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<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page import="com.yourcompany.struts.action.Student" %>
<%@ t ......
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<%@ page contentType="text/html; charset=gb2312" %>
<%
//ÉèÖÃÊä³öÐÅÏ¢µÄ¸ñʽ¼°×Ö·û¼¯
response.setContentType("text/xml; charset=UTF-8");
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