使用php程序编写webservice程序

php生成webservice程序的步骤：

1.首先生成一个test.php类文件，类名是大写，其中的public方法后续都会作为接口方法

2.需要使用开源的soapdiscovery.php类针对test.php类来创建一个wsdl文件

3.在服务器上开启服务

4.客户端需要知道服务器上的wsdl文件访问路径，然后通过soapclient类来请求，构造参数请求webservice中的类方法

首先是一个test.php类，具体代码：

<?php
class Test {
/**
*
* @param string $name
* @param int $age
* @return string
*/
public function add($name,$age)
{
$result = array('REV'=>false);
$result['REV'] = true;
$result['DATA'] = 1;
$result['name'] = $name;
$result['age'] = $age;
return json_encode($result);
}

public function say()
{
return 'I am speaking!<br/>';
}
/**
* delete the object
* @param int $id
* @return boolean
*/
public function del($id)
{
$result = false;
return $result;
}
/**
*
* @param int $type
* @return string
*/
public function getlist($type)
{
$result = array(
array('name'=>'张三','age'=>18),
array('name'=>'李四','age'=>20),
array('name'=>'jms','age'=>10),
array('name'=>'jk陈','age'=>8),
);
return json_encode($result);

}

public function receiveCompanies($xmlContent)
{
$arr_receive = $this->simplest_xml_to_array($xmlContent);

return
'<?xml version="1.0" encoding="UTF-8"?>\n<response>\n<status>1</status>\n<version>'.count($arr_receive).'</version>\n</response>';
}

/** * 最简单的XML转数组 * @param string $xmlstring XML字符串 * @return array XML数组*/

private function simplest_xml_to_array($xmlstring)
{
$str_source = array('\\x00','\\x01','\\x02','\\x03','\\x04','\\x05','\\x06','\\x07','\\x08',
'\\x0b','\\x0c','\\x0e','\\x0f','\\x10','\\x11','\\x12','\\x13','\\x14','\\x15','\\x16','\\x17','\\x18','\\x19','\\x1a','\\x1b','\\x1c','\\x1d','\\x1e','\\x1f');
$xmlstring = str_replace($str_source,'',$xmlstring);
$str_source = array('&',"'");//,'<','>','"',"'"
$str_target = array('&',''');//,'<','>','"','''
$xmlstring = str_replace($str_source,$str_target,$xmlstring);

return json_decode(json_encode((array)simplexml_load_string($xmlstring)),true);
}

}

?>

soapdiscovery.php类代码如下：
<?php

/**
* Copyright (c) 2005, Braulio Jos?Solano Rojas
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
* Neither the name of the Solsoft de Costa Rica S.A. nor the names of its contributors may
* be used to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* @version $Id: SoapDiscovery.class.php 66 2013-04-10 07:12:21Z ideaa $
* @copyright 2005
*/

/**
* SoapDiscovery Class that provides Web Service Definition Language (WSDL).
*
* @package SoapDiscovery
* @author Braulio Jos?Solano Rojas
* @copyright Copyright (c) 2005 Braulio Jos?Solano Rojas
* @version $Id: SoapDiscovery.class.php 66 2013-04-10 07:12:21Z ideaa $
* @access public
* */
class SoapDiscovery {

private $class_name = '';
private $service_name = '';

/**
* SoapDiscovery::__construct() SoapDiscovery class Constructor.
*
* @param string $class_name
* @param string $service_name
* */
public function __construct($class_name = '', $service_name = '') {
$this->class_name = $class_name;
$this->service_name = $service_name;
}

/**
* SoapDiscovery::getWSDL() Returns the WSDL of a class if the class is instantiable.
*
* @return string
* */
public function getWSDL() {
if (empty($this->service_name)) {
throw new Exception('No service name.');
}
$headerWSDL = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n";
$headerWSDL.= "<definitions name=\"$this->service_name\" targetNamespace=\"urn:$this->service_name\" xmlns:wsdl=\"http://schemas.xmlsoap.org/wsdl/\" xmlns:soap=\"http://schemas.xmlsoap.org/wsdl/soap/\" xmlns:tns=\"urn:$this->service_name\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:SOAP-ENC=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns=\"http://schemas.xmlsoap.org/wsdl/\">\n";
$headerWSDL.= "<types xmlns=\"http://schemas.xmlsoap.org/wsdl/\" />\n";

if (empty($this->class_name)) {
throw new Exception('No class name.');
}

$class = new ReflectionClass($this->class_name);

if (!$class->isInstantiable()) {
throw new Exception('Class is not instantiable.');
}

$methods = $class->getMethods();

$portTypeWSDL = '<portType name="' . $this->service_name . 'Port">';
$bindingWSDL = '<binding name="' . $this->service_name . 'Binding" type="tns:' . $this->service_name . "Port\">\n<soap:binding style=\"rpc\" transport=\"http://schemas.xmlsoap.org/soap/http\" />\n";
$serviceWSDL = '<service name="' . $this->service_name . "\">\n<documentation />\n<port name=\"" . $this->service_name . 'Port" binding="tns:' . $this->service_name . "Binding\"><soap:address location=\"http://" . $_SERVER['HTTP_HOST'] . ($_SERVER['SERVER_PORT']=='80'?'':(':'.$_SERVER['SERVER_PORT'])). $_SERVER['PHP_SELF'].'?service='. strtolower($this->class_name) . "\" />\n</port>\n</service>\n";
$messageWSDL = '';
foreach ($methods as $method) {
if ($method->isPublic() && !$method->isConstructor()) {
$portTypeWSDL.= '<operation name="' . $method->getName() . "\">\n" . '<input message="tns:' . $method->getName() . "Request\" />\n<output message=\"tns:" . $method->getName() . "Response\" />\n</operation>\n";
$bindingWSDL.= '<operation name="' . $method->getName() . "\">\n" . '<soap:operation soapAction="urn:' . $this->service_name . '#' . $this->class_name . '#' . $method->getName() . "\" />\n<input><soap:body use=\"encoded\" namespace=\"urn:$this->service_name\" encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" />\n</input>\n<output>\n<soap:body use=\"encoded\" namespace=\"urn:$this->service_name\" encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" />\n</output>\n</operation>\n";
$messageWSDL.= '<message name="' . $method->getName() . "Request\">\n";
$parameters = $method->getParameters();
foreach ($parameters as $parameter) {
$messageWSDL.= '<part name="' . $parameter->getName() . "\" type=\"xsd:string\" />\n";
}
$messageWSDL.= "</message>\n";
$messageWSDL.= '<message name="' . $method->getName() . "Response\">\n";
$messageWSDL.= '<part name="' . $method->getName() . "\" type=\"xsd:string\" />\n";
$messageWSDL.= "</message>\n";
}
}
$portTypeWSDL.= "</portType>\n";
$bindingWSDL.= "</binding>\n";
//return sprintf('%s%s%s%s%s%s', $headerWSDL, $portTypeWSDL, $bindingWSDL, $serviceWSDL, $messageWSDL, '</definitions>');
//生成wsdl文件，将上面的return注释

$fso = fopen(strtolower($this->class_name) . ".wsdl", "w");
fwrite($fso, sprintf('%s%s%s%s%s%s', $headerWSDL, $portTypeWSDL, $bindingWSDL, $serviceWSDL, $messageWSDL, '</definitions>'));
fclose($fso);
}

/**
* SoapDiscovery::getDiscovery() Returns discovery of WSDL.
*
* @return string
* */
public function getDiscovery() {
return "<?xml version=\"1.0\" ?>\n<disco:discovery xmlns:disco=\"http://schemas.xmlsoap.org/disco/\" xmlns:scl=\"http://schemas.xmlsoap.org/disco/scl/\">\n<scl:contractRef ref=\"http://" . $_SERVER['SERVER_NAME'] . ':' . $_SERVER['SERVER_PORT'] . $_SERVER['PHP_SELF'] . "?wsdl\" />\n</disco:discovery>";
}

}

?>

server.php类代码如下：

<?php
ini_set("soap.wsdl_cache_enabled",0);
if(empty($_GET['service'])) {
echo "参数非法，请传入service";
return;
}
/**
**根据类名生成一个wsdl文件
**/
function generateWsdl($serviceClass,$isRemake=FALSE)
{
include("soapdiscovery.php");
if ( ! file_exists(strtolower($serviceClass).'.wsdl') || $isRemake)
{
$discovery = new SoapDiscovery($serviceClass,$serviceClass.'service');
$discovery->getWSDL();
}
}
$serviceName = strtolower(htmlentities(trim($_GET['service'])));
if(isset($_GET['action'])) {
$action = strtolower(htmlentities(trim($_GET['action'])));
}

include($serviceName.'.php');//与当前文件同名的目录下有一个提供webservice接口功能的类文件
if(!file_exists($serviceName.'.php')) {
echo $serviceName.'.php不存在';
return;
}
$isRemake = TRUE;//类文件方法修改时要重新生成一遍wsdl文件
generateWsdl(ucfirst($serviceName),$isRemake);
$path = $serviceName.'.wsdl';
// if(is_writable($path)) {//要确保文件是可以写入的
// echo "$path is writable<br/>";
// }else {
// echo "$path is not writable<br/>";
// }

if (isset($action) && $action == 'wsdl') {//这些语句可以查看当前webservice提供的接口方法描述
header('Content-type:text/xml');
$document = file_get_contents($path);
echo $document;
exit;
}

libxml_disable_entity_loader(false);//这一句可以提高webservice服务的可靠性
$server = new SoapServer($path);
$class = ucfirst($serviceName);
$obj = new $class();
$server->setObject($obj);
$server->setClass($class);
$server->handle();
?>

以上三个类是放在服务器上的，假定server.php是放在192.168.100.198服务器上，那么具体的查看该服务器上的wsdl文件的url地址为：http://192.168.100.198/server.php?service=test&action=wsdl,如果只想重新生成wsdl文件则访问http://192.168.100.198/server.php?service=test 即可

最后在客户端机器上放入client.php程序，具体代码如下：

<?php
ini_set("soap.wsdl_cache_enabled",0);

libxml_disable_entity_loader(false);//这一句可以提高webservice服务的可靠性
$url = "http://192.168.100.198/test.wsdl";
$client = new SoapClient($url);
echo "arrive here111,<hr/>";
$params = array('name'=>'wangxiaoruo','age'=>'33');
$res = $client->__soapCall('add',$params);
var_dump($res);
echo "<hr/>";

$params = array();
$res = $client->__soapCall('say',$params);
var_dump($res);
echo "<hr/>";

$params = array('type'=>1);
$res = $client->__soapCall('getlist',$params);
var_dump($res);
return;

?>

可以看到访问后的结果为：

arrive here111,

string(53) "{"REV":true,"DATA":1,"name":"wangxiaoruo","age":"33"}"

string(19) "I am speaking!

"

string(119) "[{"name":"\u5f20\u4e09","age":18},{"name":"\u674e\u56db","age":20},{"name":"jms","age":10},{"name":"jk\u9648","age":8}]"