抓取“维库电子市场”供应商程序_PHP教程
* 抓取“维库电子市场”供应商主程序
* author Lee.
* Last modify $Date: 2012-2-3 9:30:21 $
* 注：本程序按照编码 GB2312 执行，因为“维库电子市场”网站是GB2312编码，数据库也得保持一致
*/
class weiku {
private $key; // 型号
private $pageNum; // 页码
/**
* 入口程序
*/
public function go($key) {
$this->key = $key;
$this->pageNum = $this->getPageNum();
$this->getInfo();
}
/**
* 获取供应商 url 链接数组
* @return ArrayObject
*/
private function getInfo() {
if ($this->pageNum==1) { # 处理只有一页的情况
$arr = $this->shopAddContact($this->shopUrlMatchReArr($this->getContent()));
$this->isAddSuccess($arr);
} elseif ($this->pageNum>1) { # 多页
for ($i=1; $ipageNum; $i++) {
$arr = $this->shopAddContact($this->shopUrlMatchReArr($this->getContent($i)));
$this->isAddSuccess($arr);
}
}
}
/**
* 打印是否添加成功
* @param ArrayObject $arr
* @return string
*/
private function isAddSuccess($arr) {
foreach ($arr as $k=>$v) {
if ($this->execAdd($this->getInfoByShopUrl($v))) {
echo 'Add Success!!';
} else {
echo 'Add Faild!!';
}
}
}
/**
* 执行添加到数据库
* @param ArrayObject $infoArr
* @return Number 受影响的行数
*/
private function execAdd($infoArr) {
$mysqli = $this->getDb();
if (!emptyempty($infoArr['company'])) {
if (!$this->isExists($mysqli, $infoArr)) {
$num = $mysqli->query("INSERT INTO weiku(company,person,phone,fax,mobile,qq,msn,email,address,shopUrl) VALUES ('{$infoArr['company']}','{$infoArr['person']}','{$infoArr['phone']}','{$infoArr['fax']}','{$infoArr['mobile']}','{$infoArr['qq']}','{$infoArr['msn']}','{$infoArr['email']}','{$infoArr['address']}','{$infoArr['shopUrl']}')");
return $num;
} else {
return false; # 表示数据已经存在
}
} else {
return false;
}
}
/**
* 连接数据库
*/
private function getDb() {
$mysqli = new mysqli('localhost', 'root', '1715544', 'weiku');
$mysqli->query('SET NAMES GB2312');
return $mysqli;
}
/**
* 检查公司是否已经存在
* @param Resource $mysqli
* @param ArrayObject $infoArr
* @return bool
*/
private function isExists($mysqli, $infoArr) {
$mysqli->query("SELECT company FROM weiku WHERE company = '{$infoArr['company']}'");
if ($mysqli->affected_rows) {
return true;
} else {
return false;
}
}
/**
* 抓取信息
* @param $url
* @return ArrayObject
*/
private function getInfoByShopUrl($url) {
$re = $this->getUrlInfo($url);
preg_match_all('/公司名称：(.*)/Usi', $re, $companyArr);
preg_match_all('/联系人：(.*)/Usi', $re, $personArr);
preg_match_all('/电话：(.*)/Usi', $re, $phoneArr);
preg_match_all('/传真：(.*)/Usi', $re, $faxArr);
preg_match_all('/手机：(.*)/Usi', $re, $mobileArr);
preg_match_all('/QQ：(.*)/Usi', $re, $qqArr);
preg_match_all('/MSN：(.*)/Usi', $re, $msnArr);
preg_match_all('/E-Mail：(.*)/Usi', $re, $emailArr);
preg_match_all('/公司地址：(.*)/Usi', $re, $addressArr);
$infoArr = array(
'company'=>$this->stripATags($companyArr[1][0]),
'person'=>trim($personArr[1][0]),
'phone'=>trim($phoneArr[1][0]),
'fax'=>trim($faxArr[1][0]),
'mobile'=>trim($mobileArr[1][0]),
'qq'=>$this->formatQqMsn($qqArr[1][0]),
'msn'=>$this->formatQqMsn($msnArr[1][0], 'MSN'),
'email'=>$this->stripATags($emailArr[1][0]),
'address'=>trim($addressArr[1][0]),
'shopUrl'=>$url
);
return $infoArr;
}
/**
* 根据页面获取供应商 url 数组
* @param string $re
* @return ArrayObject
*/
private function shopUrlMatchReArr($re) {
$re = preg_replace('/
$re = preg_replace('/
$re = preg_replace('/[A-Z]/', '', $re);
$re = preg_replace('/[0-9]/', '', $re);
$re = preg_replace('/.*/', '', $re);
$re = preg_replace('/.*/', '', $re);
$re = preg_replace('/营业执照/', '', $re);
$re = preg_replace('/该企业更多资质>>/', '', $re);
$re = preg_replace('/点此反馈/', '', $re);
$re = preg_replace('/首页/', '', $re);
$re = preg_replace('/IC/', '', $re);
$re = preg_replace('/简洁/', '', $re);
$re = preg_replace('/信用/', '', $re);
$re = preg_replace('/.*更多报价信息>>/', '', $re);
$re = preg_replace('/.*/', '', $re);
$re = preg_replace('/
preg_match_all('/.+/Usi', $re, $arr);
$arr = $this->formatUrlArr(array_unique($arr[1]));
return $arr;
}
/**
* 格式化数组
* @param Array $arr
* @return ArrayObject
*/
private function formatUrlArr($arr) {
$newArr = array();
foreach ($arr as $key=>$value) {
if ($this->isExistsHttp($value)) {
$newArr[$key] = $value;
}
}
return $newArr;
}
/**
* 格式化 QQ
* @param string $str
* @return string
*/
private function formatQqMsn($str, $e='QQ') {
if (emptyempty($str)) return '';
preg_match_all('/alt="'.$e.'\:(.+)"/Usi', $str, $arr);
if (count($arr[1])==1) return $arr[1][0];
$newStr = null;
foreach ($arr[1] as $value) {
$newStr .= $value . ' ';
}
return rtrim($newStr, ' ');
}
/**
* 供应商店铺链接添加 contact.html
* @param array $arr
* @return string
*/
private function shopAddContact($arr) {
foreach ($arr as $k=>$v) {
$arr[$k] = $v . '/contact.html';
}
return $arr;
}
/**
* 去掉网址的 A 标签
* @param string $site
* @return string
*/
private function stripATags($site) {
$site = preg_replace('/
return $site;
}
/**
* 检查 url 是否有 http
* @param string $url
* @return bool
*/
private function isExistsHttp($url) {
if (stristr($url, 'http://')) {
return true;
} else {
return false;
}
}
/**
* 获取页面内容
* @param Number $page
* @return string
*/
private function getContent($page=1) {
$re = file_get_contents($this->getUrl($this->key, $page));
return $re;
}
/**
* 获取页码
* @return Number
*/
private function getPageNum() {
$i = 1;
while (true) {
$re = $this->getContent($i);
# 处理单页避免处理死循环
if (!strstr($re, '下一页')) {
break;
} else {
# 多页，计算出页码
if (stristr($re, '下一页')) break;
$i++;
}
}
return $i;
}
/**
* 获取 URL 链接
* @param string $str
* @param int $page 页码
* @return string
*/
private function getUrl($str, $page=1) {
return "http://www.dzsc.com/ic/sell_search.html?keyword={$str}&ic_sel=supplygoods&Submit=%26%23160%3B&page={$page}"; }
/**
* 获取页面内容
* @param string $url
* @return string
*/
private function getUrlInfo($url) {
$re = file_get_contents($url);
return $re;
}
}
/*
程序运行思路：根据“华强电子网”的IC搜索功能，输入型号进行搜索，然后抓取供应商信息
数据库结构
CREATE TABLE `weiku` (
`id` mediumint(8) unsigned NOT NULL auto_increment COMMENT 'ID',
`company` varchar(300) default NULL COMMENT '公司名称',
`person` varchar(200) default NULL COMMENT '联系人',
`phone` varchar(300) default NULL COMMENT '电话',
`fax` varchar(300) default NULL COMMENT '传真',
`mobile` varchar(300) default NULL COMMENT '手机',
`qq` varchar(200) default NULL COMMENT 'QQ',
`msn` varchar(200) default NULL COMMENT 'MSN',
`email` varchar(300) default NULL COMMENT '邮箱',
`address` varchar(500) default NULL COMMENT '公司地址',
`shopUrl` varchar(200) default NULL COMMENT '维库网店铺地址',
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=gb2312
*/
$k = new weiku();
$arr = array_unique(array('MAX3232', 'AML8613', 'MT6225A', 'OM8373PS/N3/A', 'PT7313', 'MAX8212ESA', 'TL431', 'S3C2440', 'TMS320F2812PGFA', 'PCM1704', 'AN6717', 'CA3162E', 'CA3161E', 'LM393N', 'DS18B20', 'SHT10', 'AML8613', 'AN6717', 'LM393N', 'CA3161E', 'CA3162E', 'PCM1704', 'STK392-040', 'K1667', 'MAX232', 'STM32F103', 'LM358'));
foreach ($arr as $v) {
$k->go($v);
}
?>
/**
* 抓取“维库电子市场”供应商主程序
* author Lee.
* Last modify $Date: 2012-2-3 9:30:21 $
* 注：本程序按照编码 GB2312 执行，因为“维库电子市场”网站是GB2312编码，数据库也得保持一致
*/
class weiku {
private $key; // 型号
private $pageNum; // 页码
/**
* 入口程序
*/
public function go($key) {
$this->key = $key;
$this->pageNum = $this->getPageNum();
$this->getInfo();
}
/**
* 获取供应商 url 链接数组
* @return ArrayObject
*/
private function getInfo() {
if ($this->pageNum==1) { # 处理只有一页的情况
$arr = $this->shopAddContact($this->shopUrlMatchReArr($this->getContent()));
$this->isAddSuccess($arr);
} elseif ($this->pageNum>1) { # 多页
for ($i=1; $ipageNum; $i++) {
$arr = $this->shopAddContact($this->shopUrlMatchReArr($this->getContent($i)));
$this->isAddSuccess($arr);
}
}
}
/**
* 打印是否添加成功
* @param ArrayObject $arr
* @return string
*/
private function isAddSuccess($arr) {
foreach ($arr as $k=>$v) {
if ($this->execAdd($this->getInfoByShopUrl($v))) {
echo 'Add Success!!';
} else {
echo 'Add Faild!!';
}
}
}
/**
* 执行添加到数据库
* @param ArrayObject $infoArr
* @return Number 受影响的行数
*/
private function execAdd($infoArr) {
$mysqli = $this->getDb();
if (!empty($infoArr['company'])) {
if (!$this->isExists($mysqli, $infoArr)) {
$num = $mysqli->query("INSERT INTO weiku(company,person,phone,fax,mobile,qq,msn,email,address,shopUrl) VALUES ('{$infoArr['company']}','{$infoArr['person']}','{$infoArr['phone']}','{$infoArr['fax']}','{$infoArr['mobile']}','{$infoArr['qq']}','{$infoArr['msn']}','{$infoArr['email']}','{$infoArr['address']}','{$infoArr['shopUrl']}')");
return $num;
} else {
return false; # 表示数据已经存在
}
} else {
return false;
}
}
/**
* 连接数据库
*/
private function getDb() {
$mysqli = new mysqli('localhost', 'root', '1715544', 'weiku');
$mysqli->query('SET NAMES GB2312');
return $mysqli;
}
/**
* 检查公司是否已经存在
* @param Resource $mysqli
* @param ArrayObject $infoArr
* @return bool
*/
private function isExists($mysqli, $infoArr) {
$mysqli->query("SELECT company FROM weiku WHERE company = '{$infoArr['company']}'");
if ($mysqli->affected_rows) {
return true;
} else {
return false;
}
}
/**
* 抓取信息
* @param $url
* @return ArrayObject
*/
private function getInfoByShopUrl($url) {
$re = $this->getUrlInfo($url);
preg_match_all('/公司名称：(.*)/Usi', $re, $companyArr);
preg_match_all('/联系人：(.*)/Usi', $re, $personArr);
preg_match_all('/电话：(.*)/Usi', $re, $phoneArr);
preg_match_all('/传真：(.*)/Usi', $re, $faxArr);
preg_match_all('/手机：(.*)/Usi', $re, $mobileArr);
preg_match_all('/QQ：(.*)/Usi', $re, $qqArr);
preg_match_all('/MSN：(.*)/Usi', $re, $msnArr);
preg_match_all('/E-Mail：(.*)/Usi', $re, $emailArr);
preg_match_all('/公司地址：(.*)/Usi', $re, $addressArr);
$infoArr = array(
'company'=>$this->stripATags($companyArr[1][0]),
'person'=>trim($personArr[1][0]),
'phone'=>trim($phoneArr[1][0]),
'fax'=>trim($faxArr[1][0]),
'mobile'=>trim($mobileArr[1][0]),
'qq'=>$this->formatQqMsn($qqArr[1][0]),
'msn'=>$this->formatQqMsn($msnArr[1][0], 'MSN'),
'email'=>$this->stripATags($emailArr[1][0]),
'address'=>trim($addressArr[1][0]),
'shopUrl'=>$url
);
return $infoArr;
}
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* 根据页面获取供应商 url 数组
* @param string $re
* @return ArrayObject
*/
private function shopUrlMatchReArr($re) {
$re = preg_replace('/
$re = preg_replace('/
$re = preg_replace('/[A-Z]/', '', $re);
$re = preg_replace('/[0-9]/', '', $re);
$re = preg_replace('/.*/', '', $re);
$re = preg_replace('/.*/', '', $re);
$re = preg_replace('/营业执照/', '', $re);
$re = preg_replace('/该企业更多资质>>/', '', $re);
$re = preg_replace('/点此反馈/', '', $re);
$re = preg_replace('/首页/', '', $re);
$re = preg_replace('/IC/', '', $re);
$re = preg_replace('/简洁/', '', $re);
$re = preg_replace('/信用/', '', $re);
$re = preg_replace('/.*更多报价信息>>/', '', $re);
$re = preg_replace('/.*/', '', $re);
$re = preg_replace('/
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