JDBC 对 结果集的处理

获取方式一：

    使用RowMapper<T>

      public List<Student> findStudent(final int fromId,final int toId) {
   String sql=Contants.FIND_STUDENT; //sql语句
return jdbcTemplate.query(sql, new Object[]{fromId,toId},new RowMapper<Student>(){
public ViewSpace mapRow(ResultSet rs, int index)
throws SQLException {
Student s=new Student();
s.setName(rs.getString("student_name"));
return s;
}});
}

方式二：

  使用RowCallbackHandler

     public List<Student> findStudent(final int fromId,final int toId) {
   String sql=Contants.FIND_STUDENT;
   final List<Student> students=new ArrayList<Student>();;
   jdbcTemplate.query(sql, new Object[]{fromId,toId},new RowCallbackHandler(){
public void processRow(ResultSet rs) throws SQLException {
Student s=new Student();
s.setName(rs.getString("student_name"));
s.add(students);
}});
return students;
}