public static int insertMstxCol(String mid, String uid, String comment) {
		int result = 0;
		Connection con = DBUtil.getConnection();
		PreparedStatement pstmt = null;
		try {
			pstmt = con.prepareStatement("insert into mstx_col(mid,uid,comment) values(?,?,?)");
			pstmt.setString(1, mid);
			pstmt.setString(2, uid);
			pstmt.setString(3, comment);
			result = pstmt.executeUpdate();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (pstmt != null) {
					pstmt.close();
					pstmt = null;
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
			try {
				if (con != null) {
					con.close();
					con = null;
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		return result;
	}