Java 从数据库里读取数据，并将数据赋予某变量

                        Connection conn = null;
conn = BaseUtil.getConnection();
String sql ="select xq,kssj,jssj from SZ_HD_XQSJ where xxdm='"+xxdm+"'and xq='"+xq+"'and xn='"+xn+"'";
Statement st=conn.createStatement();
ResultSet rs =st.executeQuery(sql);
while(rs.next()){
kssj = rs.getDate("kssj");
jssj = rs.getDate("jssj");

System.out.println("++++++++++++"+kssj);
System.out.println("++++++++++++"+jssj);
}