视图html 

      
   
       
       
        
请输入书名、作者、出版社中的一个或多个来查询。
       
        
 
   
       
      

控制器 

public function index() {    $keyword = $this->input->get ( 's' );    $offset = $this->input->get ( 'offset' );    if (empty ( $offset )) {        $offset = 0;    }    if (! empty ( $keyword )) {        $this->load->model ( 'book_model' );        $this->load->library ( 'pagination' );        $per_page = 10;        $config ['num_links'] = 5;        $config ['base_url'] = '/index.php/' . $this->router->class . '/' . $this->router->method . '/?s=' . $keyword;        $config ['per_page'] = $per_page;        $config ['total_rows'] = $this->Book_Model->find_by_name ( $keyword, NULL, NULL, true );        $config ['page_query_string'] = false;        $config ['query_string_segment'] = 'offset'; //重新定义记录起始位置的参数名，默认为per_page        $this->pagination->initialize ( $config );        $data ['books'] = $this->Book_Model->find_by_name ( $keyword, $per_page, $offset );        $this->load->view ( 'search', $data );    } else {        $this->load->view ( 'search' );    }}　

因为config.php中默认的enable_query_strings是false, 起始位置始终在最后，这样出来的结果类似/index.php/search/index/?s=中国/10,页码取不到，需要将此配置改为false; 

 

数据加载模型

public function find_by_name($name, $per_page=0, $offset = 0, $is_total = false) {    if ($is_total) {//总数$query = $this->db->query ( "select count(id) as cnt from {$this->_book} where book_name like '%{$name}%'" );if ($query->num_rows () > 0) {    $row = $query->row ();    $ret = $row->cnt;}   }else{//列表      $query = $this->db->query ("select * from {$this->_book} where book_name like '%{$name}%' limit {$offset}, {$per_page}");      $ret = $query->result ();   }   return $ret;}