Zendframework连接两个或多个数据库的实现

配置文件

 <db>
        <adapter>PDO_MSSQL</adapter>
    <config>
            <host>localhost</host>
            <port></port>
            <username>sa</username>
            <password></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></port>
            <username>sa</username>
            <password></password>
            <dbname>test</dbname>
            <pdoType>sqlsrv</pdoType>
        </config>
    </db2>

入口文件

//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); 

这里是默认的数据库

dao.php调用默认数据库

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

dao2.php连接其他数据库

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;
    }

调用

 $db = &$this->getAdapter();
还是会连接默认数据库。

直接使用

$this->db就可以了

来看一下完整的dao2.php

<?php

class 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']==){
                    $select->where($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[], $val[]);
            }
        }

       //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 = , $aLog = false) {
        //$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_;
    } 

}