  A new version of the method of Continuum-Discretized Coupled-Channels method
(CDCC) is proposed, that is, the Eikonal-CDCC method (E-CDCC). The E-CDCC
equation, for Coulomb dissociation in particular, can easily and safely be
solved, since it is a first-order differential equation and contains no huge
angular momentum in contrast to the CDCC one. The scattering amplitude
calculated by E-CDCC has a similar form to that by CDCC. Then one can construct
hybrid amplitude in an intuitive way, i.e., CDCC amplitude is adopted for a
smaller angular momentum $L$ and E-CDCC one for a larger $L$ related to an
impact parameter $b$. The hybrid calculation is found to perfectly reproduce
the quantum mechanical result for $^{58}$Ni($^8$B,$^7$Be$+p$)$^{58}$Ni at 240
MeV, which shows its applicability to systematic analysis of $^8$B dissociation
to extract the astrophysical factor $S_{17}$ with high accuracy.
