公司有一项业务需要，需要计算N多公式，且这些公式频繁变化，但对性能要求不高，于是当时我想到了PHP，毕竟脚本化的语言，改动相当方便。后来又要求别的语言能调，得封成服务。
参照网上教程后发现问题颇多，对于经常写php的自不是难事，但对于我这种只能够依靠语法书敲点php代码的就不行了，于是自己将其中坑洞记下来。
首先php得5.0以上，目前想来应该很少有版本低于这个的了，问题应该不大。
第二步是修改php的配置文件，将php.ini中extension=php_soap.dll和extension=php_openssl.dll前面的;去掉，其中有两点注意
1.到phpinfo下查看Loaded Configuration File的路径，以此路径的php配置文件为准，不一定是你php目录下的，我当时就是改来改去发现怎么都没效，然后一看phpinfo，居然是用的C盘windows下的配置文件。
2.只将注释去掉就好，切勿改变顺序，谢谢php治好了我的强迫症,以前都爱将注释的归一块，没注释的归一块，黏贴来黏贴去居然还发现有加载顺序问题。
第三步,网上扒拉过来一个示例代码
1 <?php 2 // 这里用PHP建立一个SOAP服务 3 class math{ 4 public function add($a, $b){ 5 return $a + $b; 6 } 7 } 8 $service = new SoapServer('math.wsdl', array('soap_version' => SOAP_1_2)); 9 $service->setClass("math"); //! 注册Service类的所有方法 10 $service->handle(); //! 处理请求 11 ?>
这是一个需要wsdl文件的服务端，我们保存下来，命名为math.php，我们此时可以通过工具来生成wsdl文件，不过我不耐去下载，于是找了一个soapdiscovery.class.php的php文件，能帮助生成wsdl文件,源代码见下
1 <pre name="code" class="php"><?php 2 3 /** 4 * Copyright (c) 2005, Braulio José Solano Rojas 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without modification, are 8 * permitted provided that the following conditions are met: 9 * 10 * Redistributions of source code must retain the above copyright notice, this list of 11 * conditions and the following disclaimer. 12 * Redistributions in binary form must reproduce the above copyright notice, this list of 13 * conditions and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * Neither the name of the Solsoft de Costa Rica S.A. nor the names of its contributors may 16 * be used to endorse or promote products derived from this software without specific 17 * prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 20 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 21 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 31 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * 34 * @version $Id$ 35 * @copyright 2005 36 */ 37 38 /** 39 * SoapDiscovery Class that provides Web Service Definition Language (WSDL). 40 * 41 * @package SoapDiscovery 42 * @author Braulio José Solano Rojas 43 * @copyright Copyright (c) 2005 Braulio José Solano Rojas 44 * @version $Id$ 45 * @access public 46 **/ 47 class SoapDiscovery { 48 private $class_name = ''; 49 private $service_name = ''; 50 51 /** 52 * SoapDiscovery::__construct() SoapDiscovery class Constructor. 53 * 54 * @param string $class_name 55 * @param string $service_name 56 **/ 57 public function __construct($class_name = '', $service_name = '') { 58 $this->class_name = $class_name; 59 $this->service_name = $service_name; 60 } 61 62 /** 63 * SoapDiscovery::getWSDL() Returns the WSDL of a class if the class is instantiable. 64 * 65 * @return string 66 **/ 67 public function getWSDL() { 68 if (empty($this->service_name)) { 69 throw new Exception('No service name.'); 70 } 71 $headerWSDL = "<?xml version=\"1.0\" ?>\n"; 72 $headerWSDL.= "<definitions name=\"$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"; 73 $headerWSDL.= "<types xmlns=\"http://schemas.xmlsoap.org/wsdl/\" />\n"; 74 75 if (empty($this->class_name)) { 76 throw new Exception('No class name.'); 77 } 78 79 $class = new ReflectionClass($this->class_name); 80 81 if (!$class->isInstantiable()) { 82 throw new Exception('Class is not instantiable.'); 83 } 84 85 $methods = $class->getMethods(); 86 87 $portTypeWSDL = '<portType name="'.$this->service_name.'Port">'; 88 $bindingWSDL = '<binding name="'.$this->service_name.'Binding" type="tns:'.$this->service_name."Port\">\n<soap:binding style=\"rpc\" transport=\"http://schemas.xmlsoap.org/soap/http\" />\n"; 89 $serviceWSDL = '<service name="'.$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"; 90 $messageWSDL = ''; 91 foreach ($methods as $method) { 92 if ($method->isPublic() && !$method->isConstructor()) { 93 $portTypeWSDL.= '<operation name="'.$method->getName()."\">\n".'<input message="tns:'.$method->getName()."Request\" />\n<output message=\"tns:".$method->getName()."Response\" />\n</operation>\n"; 94 $bindingWSDL.= '<operation name="'.$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"; 95 $messageWSDL.= '<message name="'.$method->getName()."Request\">\n"; 96 $parameters = $method->getParameters(); 97 foreach ($parameters as $parameter) { 98 $messageWSDL.= '<part name="'.$parameter->getName()."\" type=\"xsd:string\" />\n"; 99 } 100 $messageWSDL.= "</message>\n"; 101 $messageWSDL.= '<message name="'.$method->getName()."Response\">\n"; 102 $messageWSDL.= '<part name="'.$method->getName()."\" type=\"xsd:string\" />\n"; 103 $messageWSDL.= "</message>\n"; 104 } 105 } 106 $portTypeWSDL.= "</portType>\n"; 107 $bindingWSDL.= "</binding>\n"; 108 //return sprintf('%s%s%s%s%s%s', $headerWSDL, $portTypeWSDL, $bindingWSDL, $serviceWSDL, $messageWSDL, '</definitions>'); 109 $fso = fopen($this->class_name . ".wsdl" , "w"); 110 fwrite($fso, sprintf('%s%s%s%s%s%s', $headerWSDL, $portTypeWSDL, $bindingWSDL, $serviceWSDL, $messageWSDL, '</definitions>')); 111 } 112 113 /** 114 * SoapDiscovery::getDiscovery() Returns discovery of WSDL. 115 * 116 * @return string 117 **/ 118 public function getDiscovery() { 119 return "<?xml version=\"1.0\" ?>\n<disco:discovery xmlns:disco=\"http://schemas.xmlsoap.org/disco/\" xmlns:scl=\"http://schemas.xmlsoap.org/disco/scl/\">\n<scl:contractRef ref=\"http://".$_SERVER['SERVER_NAME'].':'.$_SERVER['SERVER_PORT'].$_SERVER['PHP_SELF']."?wsdl\" />\n</disco:discovery>"; 120 } 121 } 122 123 ?>
此时，我们需要在同级目录下写个调用php以生成wsdl文件，该文件我们命名为create_wsdl.php
1 <?php 2 include_once('math.php'); 3 include_once('SoapDiscovery.class.php'); 4 $wsdl=new SoapDiscovery('math','soap'); 5 $wsdl->getWSDL(); 6 ?>
在运行create_wsdl.php之前请下注释掉math.php中new server和调用的代码
//$service = new SoapServer('math.wsdl', array('soap_version' => SOAP_1_2)); //$service->setClass("math"); //! 注册Service类的所有方法
//$service->handle(); //! 处理请求
访问这个页面，于是就生成wsdl文件，随后将math.php中三行代码放开注释。
最后打开wsdl文件，修改soap地址，即完成服务
soap:address location="http://127.0.0.1:80/math.php"
写到这，php调用已经可以了，不过如果其他语言调用你会发现所有的输入参数都是字符串。
自然，类似C#等语言你任意数据类型可以.ToSting()来转换，但却说不出的恶心，手工一个个去改WSDL里类型又太烦。
1 <pre name="code" class="php"><?php 2 3 /** 4 * Copyright (c) 2005, Braulio José Solano Rojas 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without modification, are 8 * permitted provided that the following conditions are met: 9 * 10 * Redistributions of source code must retain the above copyright notice, this list of 11 * conditions and the following disclaimer. 12 * Redistributions in binary form must reproduce the above copyright notice, this list of 13 * conditions and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * Neither the name of the Solsoft de Costa Rica S.A. nor the names of its contributors may 16 * be used to endorse or promote products derived from this software without specific 17 * prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 20 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 21 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 31 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * 34 * @version $Id$ 35 * @copyright 2005 36 */ 37 38 /** 39 * SoapDiscovery Class that provides Web Service Definition Language (WSDL). 40 * 41 * @package SoapDiscovery 42 * @author Braulio José Solano Rojas 43 * @copyright Copyright (c) 2005 Braulio José Solano Rojas 44 * @version $Id$ 45 * @access public 46 **/ 47 class SoapDiscovery { 48 private $class_name = ''; 49 private $service_name = ''; 50 51 /** 52 * SoapDiscovery::__construct() SoapDiscovery class Constructor. 53 * 54 * @param string $class_name 55 * @param string $service_name 56 **/ 57 public function __construct($class_name = '', $service_name = '') { 58 $this->class_name = $class_name; 59 $this->service_name = $service_name; 60 } 61 62 /** 63 * SoapDiscovery::getWSDL() Returns the WSDL of a class if the class is instantiable. 64 * 65 * @return string 66 **/ 67 public function getWSDL($desdir,$desphp) { 68 if (empty($this->service_name)) { 69 throw new Exception('No service name.'); 70 } 71 $headerWSDL = "<?xml version=\"1.0\" ?>\n"; 72 $headerWSDL.= "<definitions name=\"$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"; 73 $headerWSDL.= "<types xmlns=\"http://schemas.xmlsoap.org/wsdl/\" />\n"; 74 75 if (empty($this->class_name)) { 76 throw new Exception('No class name.'); 77 } 78 79 $class = new ReflectionClass($this->class_name); 80 81 if (!$class->isInstantiable()) { 82 throw new Exception('Class is not instantiable.'); 83 } 84 85 $methods = $class->getMethods(); 86 87 $portTypeWSDL = '<portType name="'.$this->service_name.'Port">'; 88 $bindingWSDL = '<binding name="'.$this->service_name.'Binding" type="tns:'.$this->service_name."Port\">\n<soap:binding style=\"rpc\" transport=\"http://schemas.xmlsoap.org/soap/http\" />\n"; 89 $serviceWSDL = '<service name="'.$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']."/".$desdir."/".$desphp.".php\" />\n</port>\n</service>\n"; 90 $messageWSDL = ''; 91 foreach ($methods as $method) { 92 if ($method->isPublic() && !$method->isConstructor()) { 93 $portTypeWSDL.= '<operation name="'.$method->getName()."\">\n".'<input message="tns:'.$method->getName()."Request\" />\n<output message=\"tns:".$method->getName()."Response\" />\n</operation>\n"; 94 $bindingWSDL.= '<operation name="'.$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"; 95 $messageWSDL.= '<message name="'.$method->getName()."Request\">\n"; 96 $parameters = $method->getParameters(); 97 foreach ($parameters as $parameter) { 98 if(strlen(strpos($parameter->getName(),"dbVal")) > 0) 99 $messageWSDL.= '<part name="'.$parameter->getName()."\" type=\"xsd:double\" />\n"; 100 else if(strlen(strpos($parameter->getName(),"intVal")) > 0) 101 $messageWSDL.= '<part name="'.$parameter->getName()."\" type=\"xsd:integer\" />\n"; 102 else 103 $messageWSDL.= '<part name="'.$parameter->getName()."\" type=\"xsd:string\" />\n"; 104 } 105 $messageWSDL.= "</message>\n"; 106 $messageWSDL.= '<message name="'.$method->getName()."Response\">\n"; 107 if(strlen(strpos($method->getName(),"_Int")) > 0) 108 $messageWSDL.= '<part name="'.$method->getName()."\" type=\"xsd:integer\" />\n"; 109 else if(strlen(strpos($method->getName(),"_Double")) > 0) 110 $messageWSDL.= '<part name="'.$method->getName()."\" type=\"xsd:double\" />\n"; 111 else 112 $messageWSDL.= '<part name="'.$method->getName()."\" type=\"xsd:string\" />\n"; 113 $messageWSDL.= "</message>\n"; 114 } 115 } 116 $portTypeWSDL.= "</portType>\n"; 117 $bindingWSDL.= "</binding>\n"; 118 //return sprintf('%s%s%s%s%s%s', $headerWSDL, $portTypeWSDL, $bindingWSDL, $serviceWSDL, $messageWSDL, '</definitions>'); 119 $fso = fopen($desphp . ".wsdl" , "w"); 120 fwrite($fso, sprintf('%s%s%s%s%s%s', $headerWSDL, $portTypeWSDL, $bindingWSDL, $serviceWSDL, $messageWSDL, '</definitions>')); 121 } 122 123 /** 124 * SoapDiscovery::getDiscovery() Returns discovery of WSDL. 125 * 126 * @return string 127 **/ 128 public function getDiscovery() { 129 return "<?xml version=\"1.0\" ?>\n<disco:discovery xmlns:disco=\"http://schemas.xmlsoap.org/disco/\" xmlns:scl=\"http://schemas.xmlsoap.org/disco/scl/\">\n<scl:contractRef ref=\"http://".$_SERVER['SERVER_NAME'].':'.$_SERVER['SERVER_PORT'].$_SERVER['PHP_SELF']."?wsdl\" />\n</disco:discovery>"; 130 } 131 } 132 133 ?>
于是我把SoapDiscovery.class.php自己稍微改吧了下，大致是只要按一定命名规范来，
1 public function CalcTest_Double($intValA,$intValB){ 2 try{ 3 //$total = "TestOK"; 4 return $intValA + $intValB; 5 } 6 catch (SoapFault $fault){ 7 ErrorReporter("CalcTest",$fault->faultcode,$fault->faultstring); 8 } 9 }
这样就能识别出该服务是返回double,输入两个int的服务，另前面类名必须与php文件名一致，不然得改生成的wsdl名，我也改吧了下，输入两个参数，第一个参数是多级目录路径，
如只在www下(我装的appserv)，就传空字符串即可
$wsdl->getWSDL("","math");
，如此，简单用用是凑合了，不过毕竟不是写php的，希望有大牛以后能完善下这个自动化类。
