ApplicationDispatcher.java 文件源码

@Override
public void dispatch(ServletRequest request, ServletResponse response) throws ServletException, IOException {
    if (Globals.IS_SECURITY_ENABLED) {
        try {
            PrivilegedDispatch dp = new PrivilegedDispatch(request, response);
            AccessController.doPrivileged(dp);
        } catch (PrivilegedActionException pe) {
            Exception e = pe.getException();

            if (e instanceof ServletException)
                throw (ServletException) e;
            throw (IOException) e;
        }
    } else {
        doDispatch(request, response);
    }
}