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    php调用webservice失败怎么办

    藏色散人藏色散人2022-01-11 09:45:36原创87

    php调用webservice失败的解决办法:1、去掉“;extension=php_soap.dll”前的分号并重启apache;2、创建WSDL文件并运行creatService.php文件;3、关闭WSDL缓存。

    本文操作环境:windows7系统、PHP7.1版、DELL G3电脑

    php调用webservice失败怎么办?

    php编写webservice案例、webservice调用失败

    作为开发者来讲,要想写webservice接口或者调用别人的webservice接口,首先需要了解什么是webservice。

    简单说, WebService就是一些站点开放一些服务出来, 也可以是你自己开发的Service, 也就是一些方法, 通过URL,指定某一个方法名,发出请求,站点里的这个服务(方法),接到你的请求,根据传过来的参数,做一些处理,然后把处理后的结果以XML形式返回来给你,你的程序就解析这些XML数据,然后显示出来或做其它操作。

    在开始编写之前需要对php环境做一些配置:

    打开php安装目录下的php.ini文件

    找到 ;extension=php_soap.dll ,去掉前面的分号,保存,然后重启apache。

    配置好环境就可以编写php了,先创建creatService.php文件,复制下面代码:

    <?php
    class ServiceTest{
    	public function firstHandle($name){
    		return "你的名字是:".$name;
        }
        
        public function dbInsert($text){
            $db=new mysqli("localhost","root","","test");
    		if(mysqli_connect_error()){
    		    return '数据库连接失败。';
    		    exit;
    		}
            $result=$db->query("insert into test_soap (text) values('".$text."')");
            
    		if($result){
    			return $result;
    		}else{
    			return "插入失败";
    		}
        }
    }
    
    if(file_exists('ServiceTest.wsdl')){ //只有当ServiceTest.wsdl文件存在时才进行注册类
        $objSoapServer = new SoapServer("ServiceTest.wsdl");
        //注册ServiceTest类的所有方法 
        $objSoapServer->setClass("ServiceTest");
        //处理请求 
        $objSoapServer->handle();
    }
    
    require_once "SoapDiscovery.class.php";
    $dis=new SoapDiscovery("ServiceTest","WebService"); //第一个参数为类名也是生成wsdl的文件名
    $dis->getWSDL();
    
    
    
    ?>

    第一次运行creatService.php文件时要创建wsdl文件,创建WSDL文件需要用到一个辅助类SoapDiscovery.class.php。在文章末尾可以得到。

    创建完成之后便是测试调用,创建client.php文件,复制以下代码:

    ini_set('soap.wsdl_cache_enabled','0');//关闭缓存
    
    $x = new SoapClient("http://localhost/webServiceTest/ServiceTest.wsdl"); //这里的链接换成你自己的访问链接
    
    try {
        echo $x->firstHandle('qweqrwergwe');
    
        echo ('<pre>');
        var_dump ( $x->__getFunctions () );//获取服务器上提供的方法
        echo ('</pre>');
    
        echo ('<pre>');
        var_dump ( $x->__getTypes () );//获取服务器上数据类型
        echo ('</pre>');
    }catch (SoapFault $f){
        echo "Error Message: {$f->getMessage()}";
    }

    注意! ini_set('soap.wsdl_cache_enabled','0'); //关闭WSDL缓存

    如果不关闭缓存,会造成测试无效,缓存数据会扰乱测试准确性。

    注意!如果是在thinkphp5中使用SoapClient函数应当如下使用:

    $client = new \SoapClient ('http://www.baidu.com/ids/terminal/terminalWs.wsdl');

    重要点:

    使用https访问webservice的话会出现访问异常,博主就遇到这个问题的,本地创建和调用webservice都通过了,但是一放到线上就无法调用了,然后各种google、baidu。最后才发现线上的环境是http强制转了https。

    我的解决办法是取消了http强制转换https的功能:

    找到httpd-vhost.conf,注释掉一下代码:

    ##    RewriteEngine on
    ##    RewriteCond   %{HTTPS} !=on
    ##    RewriteRule   ^(.*)  https://%{SERVER_NAME}$1 [L,R]

    注释掉上面的代码后我发现我的网站不是https了,呜呜呜~,真的是拆了东墙补西墙啊,赶紧想办法,因为网站必须使用https才行,还好我使用的是thinkphp框架,找到了一个方法,在入口文件index.php最下面加入下面的代码就行了:

    if (empty($_SERVER['HTTPS']) || $_SERVER['HTTPS'] === "off") {
        $location = 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
        header('HTTP/1.1 301 Moved Permanently');
        header('Location: ' . $location);
        exit;
    }

    SoapDiscovery.class.php类:

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

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