  We apply a "color" tripole ansatz for describing the $D$-term of the proton.
By fitting the experimental data of the vector meson J/$\psi$ and $\phi$
photoproductions near the thresholds, we obtained the gluonic $D$-term of the
proton. $D_g(0)$ is estimated to be from -2.16 to -1.31, and the maximum radial
repulsive pressure is estimated to be from 0.012 to 0.065 GeV/fm.
