ZendFramework框架实现连接两个或多个数据库的方法

 <db>    <adapter>PDO_MSSQL</adapter>  <config>      <host>localhost</host>      <port>1433</port>      <username>sa</username>      <password>123456</password>      <dbname>edudb</dbname>      <pdoType>sqlsrv</pdoType>    </config>  </db>  <!-- 测试多数据库 -->  <db2>    <adapter>PDO_MSSQL</adapter>      <config>      <host>localhost</host>      <port>1433</port>      <username>sa</username>      <password>123456</password>      <dbname>test</dbname>      <pdoType>sqlsrv</pdoType>    </config>  </db2>

//配置数据库连接$db_config = $web_config->db->config->toArray(); //var_dump($db_config);$db = Zend_Db::factory($web_config->db->adapter, $db_config); //var_dump($db);//exit;//$db->query('set NAMES utf8');//$db->getProfiler()->setEnabled(false); Zend_Db_Table::setDefaultAdapter($db); 

$db = &$this->getAdapter();

function init() {    $web_config = $this->getCfg();    $this->db2_config = $web_config->db2->config->toArray();     //var_dump($this->db_config);    $this->db = Zend_Db::factory($web_config->db2->adapter, $this->db2_config);     Zend_Db_Table::setDefaultAdapter($this->db); }public function returnDb(){    return $this->db;}

$db = &$this->getAdapter();

$this->db

<?phpclass dao_dao2 extends Zend_Db_Table {  protected $cfg_;   function init() {    $web_config = $this->getCfg();    $this->db2_config = $web_config->db2->config->toArray();     //var_dump($this->db_config);    $this->db = Zend_Db::factory($web_config->db2->adapter, $this->db2_config);     Zend_Db_Table::setDefaultAdapter($this->db);   }  public function returnDb(){    return $this->db;  }  public function getData($table,$where = false, $order = 'id ASC', $pagesize = false, $offset = false, $count = false, $from = false, $join = false, $group = false) {    //$this->db = &$this->getAdapter();    $select = $this->db->select();    if ($where && is_array($where)) {      foreach ($where as $key => $val) {        //print_r($where);        if($val['type']==1){          $select->where($key, $this->convert2gbk($val['val']));        }else{          $select->orwhere($key, $this->convert2gbk($val['val']));        }      }     }    if (!$from)      $from = '*';    //echo $select."<br/>";    if ($pagesize) {      $select->limit($pagesize, $offset);    }    //echo $select."<br/>";    if (is_array($order)) {      foreach ($order as $value) {        $select->order($value);      }    } else {      $select->order($order);    }    //echo $select."<br/>";    $select->from($table, $count ? "COUNT(".$table.".id)" : $from);    if (is_array($group)) {      foreach ($group as $key => $val) {        $select->group($val);      }      if ($count) {        $result = $this->db->fetchAll($select);        //echo $select."<br/>";        return $result;      }    } else {      if ($count) {        $result = $this->db->fetchOne($select);        //echo $select."<br/>";        return $result;      }    }    if (is_array($join)) {      foreach ($join as $key => $val) {        //$select->join($key, $val[0], $val[1]);        $select->joinleft($key, $val[0], $val[1]);      }    }    //echo $select."<br/>";    //echo $select;exit;    $result = $this->db->fetchAll($select);    foreach ($result as $key => $value) {      foreach ($value as $key2 => $value2) {        $result[$key][$key2] = $this->convert2utf8($value2);      }    }    return $result;  }  /**   * 向表中插入数据   * array $adata 数据   * string $table 表名   * int $insterid 是否需要返回插入ID   * @return true or false or int   */   // @bianding 2013.11.04 更改了pdo中mssql.php的lastInsertId()函数   // @bianding 2013.11.04 经测试 mssql.php中的lastInsertId()函数中的SELECT两种方式都行  function SaveData($adata, $table, $insterid = 0, $aLog = false) {    //$this->db = &$this->getAdapter();    foreach ($adata as $key => $value) {      $adata[$key] = $this->convert2gbk($value);    }    if ($this->db->insert($table, $adata)) {      //var_dump($this->db->getProfiler());      $insertedID = $this->db->lastInsertId();            if ($insterid) {        return $insertedID;      } else {        return TRUE;      }    } else {      return false;    }  }  /**   * 删除表中数据   *    * @param string $table 表名   * @param string $where 'id ='.$id 条件   * @return true or false   */  function DelData($table, $where, $aLog = false) {    //$this->db = & $this->getAdapter();    if ($this->db->delete($table, $where)) {      return TRUE;    } else {      return FALSE;    }  }  /**   * 更新表中数据   *   * @param string $table   * @param array $adata   * @param string $where 'id ='.$id   * @return true or false   */  function UpdateData($table, $adata, $cond, $aLog = false) {    //$this->db = & $this->getAdapter();    foreach ($adata as $key => $value) {      $adata[$key] = $this->convert2gbk($value);    }    if ($this->db->update($table, $adata, $cond)) {      return TRUE;    } else {      return false;    }  }  public function clearTable($table) {    //$this->db = &$this->getAdapter();    $result = $this->db->query('TRUNCATE TABLE ' . $table);  }  public function executeSql($strSql) {    //$this->db = &$this->getAdapter();    $result = $this->db->query($strSql);  }  function convert2utf8($string)  {    $config = $this->getCfg();    $pdoType = $config->db->config->pdoType;    if($pdoType == 'dblib'){      return iconv("gbk","utf-8",$string);    }elseif($pdoType == 'sqlsrv'){      //$encode = mb_detect_encoding($string, array('UTF-8',"GB2312",'GBK','BIG5'));       //echo $encode;      return mb_convert_encoding($string,"UTF-8","UTF-8");      //return $string;    }  }  function convert2gbk($string)  {    $config = $this->getCfg();    $pdoType = $config->db->config->pdoType;    if($pdoType == 'dblib'){      return iconv("utf-8","gbk",$string);    }elseif($pdoType == 'sqlsrv'){      //$encode = mb_detect_encoding($string, array('UTF-8',"GB2312",'GBK','BIG5'));       //echo $encode;       return mb_convert_encoding($string,"UTF-8","UTF-8");      //return $string;    }  }  protected function &getCfg() {    if ($this->cfg_ === null) {      $registry = Zend_Registry::getInstance();      $this->cfg_ = $registry->get('web_config');    }    return $this->cfg_;  } }