公司中有不少服務(wù)是以curl或者soap方式連接第三方公司做的服務(wù)來(lái)交互數(shù)據(jù)，最近新增加了個(gè)需求，就是第三方服務(wù)發(fā)版時(shí)候，連接不上對(duì)方服務(wù)器時(shí)候要進(jìn)行重試，其它原因?qū)е碌臉I(yè)務(wù)處理失敗，則按失敗處理，不會(huì)再進(jìn)行調(diào)用。

思路就是判斷curl或者soap連接不上對(duì)方服務(wù)器時(shí)候，拋出TimeoutException異常，捕獲后做重試處理，其它錯(cuò)誤導(dǎo)致的拋出的Exception則按失敗處理。

curl處理

  $ch = curl_init($url);
    $options = array(
      CURLOPT_RETURNTRANSFER => true,
      CURLOPT_CONNECTTIMEOUT => 5, //5秒連接時(shí)間
      CURLOPT_TIMEOUT    => 30, //30秒請(qǐng)求等待時(shí)間
    );
    
    curl_setopt_array($ch, $options);
    $response = curl_exec($ch);
    if ($no = curl_errno($ch)) {
      $error = curl_error($ch);
      curl_close($ch);
      //$no錯(cuò)誤碼7為連接不上，28為連接上了但請(qǐng)求返回結(jié)果超時(shí)
      if(in_array(intval($no), [7, 28], true)) {
        throw new TimeoutException('連接或請(qǐng)求超時(shí)' . $error, $no);
      }
    }
    curl_close($ch);

soap處理

php文檔并沒(méi)詳細(xì)寫(xiě)soap超時(shí)或者連接不上返回的具體代碼，業(yè)務(wù)處理失敗或者連接不上等所有不成功，都會(huì)拋出一個(gè)SoapFault異常，看了下php的源碼發(fā)現(xiàn)，還是有定義的

php源文件位置 /ext/soap/php_http.c

定義錯(cuò)誤代碼內(nèi)容

add_soap_fault(this_ptr, "HTTP", "Unable to parse URL", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "Unknown protocol. Only http and https are allowed.", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "SSL support is not available in this build", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "Could not connect to host", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "Failed Sending HTTP SOAP request", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "Failed to create stream??", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "Error Fetching http headers", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "Error Fetching http body, No Content-Length, connection closed or chunked data", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "Redirection limit reached, aborting", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "Didn't receive an xml document", NULL, err);
add_soap_fault(this_ptr, "HTTP", "Unknown Content-Encoding", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", "Can't uncompress compressed response", NULL, NULL);
add_soap_fault(this_ptr, "HTTP", http_msg, NULL, NULL);

從代碼里可以看出來(lái)，連接不上都會(huì)返回一個(gè)HTTP碼,soap并沒(méi)像curl那樣有具體的代碼可以區(qū)分二者，只利用這個(gè)碼可以判斷是超時(shí)或者連接不上等網(wǎng)絡(luò)問(wèn)題

具體代碼如下

ini_set('default_socket_timeout', 30); //定義響應(yīng)超時(shí)為30秒

    try {
      $options = array(
        'cache_wsdl' => 0,
        'connection_timeout' => 5, //定義連接超時(shí)為5秒
      );
      libxml_disable_entity_loader(false);
      $client = new \SoapClient($url, $options);
      return $client->__soapCall($function_name, $arguments);

    } catch (\SoapFault $e) {
      //超時(shí)、連接不上
      if($e->faultcode == 'HTTP'){
        throw new TimeoutException('連接或請(qǐng)求超時(shí)', $e->getCode());
      }
    }

可以連接上soap服務(wù)，但客戶端或者服務(wù)端出問(wèn)題 $e->faultcode 會(huì)返回WSDL， 用這個(gè)來(lái)判斷

以上為php使用soap和curl捕獲請(qǐng)求超時(shí)和連接超時(shí)的方法。希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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