protected SessionStore lookSessionStore() {
WebApplicationContext wac =
WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
SessionStore store = (SessionStore) wac.getBean("sessionStore", SessionStore.class);
if (logger.isInfoEnabled()) {
logger.info(
"Using '"
+ store.getClass().getSimpleName()
+ "' SessionStore for HttpSessionStoreFilter");
}
return store;
}
private Map loadSessionData(String sessionId, HttpSession rawSession) {
Map sessionData = null;
try {
sessionData = sessionStore.getSession(sessionId, rawSession.getMaxInactiveInterval());
} catch (Exception e) {
sessionData = new HashMap();
log.warn("load session data error,cause:" + e, e);
}
return sessionData;
}
@Override
protected void doFilterInternal(
HttpServletRequest request, HttpServletResponse response, FilterChain chain)
throws ServletException, IOException {
Cookie sessionIdCookie = getOrGenerateSessionId(request, response);
String sessionId = sessionIdCookie.getValue();
HttpSession rawSession = request.getSession();
Map sessionData = loadSessionData(sessionId, rawSession);
try {
HttpSession sessionWrapper =
new HttpSessionSessionStoreWrapper(rawSession, sessionStore, sessionId, sessionData);
chain.doFilter(new HttpServletRequestSessionWrapper(request, sessionWrapper), response);
} finally {
try {
sessionStore.saveSession(sessionId, sessionData, rawSession.getMaxInactiveInterval());
} catch (Exception e) {
log.warn("save session data error,cause:" + e, e);
}
}
}