今天简单讲一个使用广发的webservice，在php中对这个服务支持的很完备，但是个人更喜欢使用python来实现soap等webservice，pyton对于数据处理例如xml，和数据传输交换等有很多优势，那么下面就简单给一下使用wsdl文件的小例子。
先给出服务端server的编码：[shell]
<?php
/**
* Description of package
*
* @author gavin
*/
class package {
//deliver package
public function shipping($a,$b){
return json_encode(func_get_args());
}
//update expressNo
public function expressNoUpdate(){
}
}
//使用SoapDiscovery.class生成wsdl的时候下面生成soap客户端的都要注释掉，也就是全部注释掉
$server = new SoapServer(‘package.wsdl’, array(‘soap_version’ => SOAP_1_2));
//不使用wsdl文件的时候
//$server = new SoapServer(null, array(‘uri’ => ‘abcd’));
$server->setClass("package");
$server->handle();
?>[/shell]
给出客户端client编码：[shell]
<?php
//ini_set(‘soap.wsdl_cache_enabled’, "0");
$soap = new SoapClient(‘http://www.test.com/apiErp/package.wsdl’);
//var_dump($soap);
var_dump($soap->shipping(1,2));[/shell]
其中wsdl文件的生成如果你是用zend studio的话，可以直接使用它生成，但那是如果不是这里有个办法就是使用一个类，这是一个外国哥们儿写的：
SoapDiscovery.class.php[shell]
<?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 $Id$
* @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 $Id$
* @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\" ?>\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[‘SERVER_NAME’] . ‘:’ . $_SERVER[‘SERVER_PORT’] . $_SERVER[‘PHP_SELF’] . "\" />\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
$fso = fopen($this->class_name . ".wsdl", "w");
fwrite($fso, sprintf(‘%s%s%s%s%s%s’, $headerWSDL, $portTypeWSDL, $bindingWSDL, $serviceWSDL, $messageWSDL, ‘</definitions>’));
}
/**
* 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>";
}
}
?>[/shell]
我们可以使用这个文件来生成需要的wsdl文件：[shell]
<?php
include(‘package.php’);
include("SoapDiscovery.class.php");
$disco = new SoapDiscovery(‘package’, ‘soap’); //第一个参数是类名（生成的wsdl文件就是以它来命名的），即Service类，第二个参数是服务的名字（这个可以随便写）。
$disco->getWSDL();[/shell]
在生成的时候，注意server端的编码中生成soap客户端的部分需要注释掉。
下面给一个python远程调用php函数并返回结果的示例,php作为服务端:[shell]
<?php
class service {
public function HelloWorld() {
return "Hello";
}
public function Add($a, $b) {
return $a + $b;
}
}
//使用SoapDiscovery.class生成wsdl的时候下面生成soap客户端的都要注释掉
$server = new SoapServer(‘service.wsdl’, array(‘soap_version’ => SOAP_1_2));
//$server = new SoapServer(null, array(‘uri’ => ‘abcd’));
$server->setClass("service");
$server->handle();
?>[/shell]
python的client端:[python]
import SOAPpy
server = SOAPpy.SOAPProxy("www.test.com/soap/server.php")
print server.Add(1,2)[/python]
