WSDL解析

背景

前面我们介绍过利用javassist动态生成webservice，这种方式可以使得我们系统通过页面配置动态发布webservice服务，做到0代码开发发布北向接口。进一步思考，我们如何0代码开发调用第三方webservice服务呢？

wsdl解析

首先必然是理解第三方webservice的接口描述，也就是解析wsdl文件。wsdl文件是webservice服务接口描述文档，一个wsdl文件可以包含多个接口，一个接口可以包含多个方法。

实际上，wsdl解析是十分困难的工作，网上也没有找到有效的解决办法，最终通过阅读SoapUI源码，找到了完美的解析方法。

代码

/**    
 * WsdlInfo.java Create on 2013-5-4 下午12:56:14    
 *    
 * 类功能说明:  wsdl解析入口
 *
 * Copyright: Copyright(c) 2013 
 * Company: COSHAHO
 * @Version 1.0
 * @Author 何科序   
 */
public class WsdlInfo 
{
    private String wsdlName;
    
    private List<InterfaceInfo> interfaces;
    
    /**
     * coshaho
     * @param path  wsdl地址
     * @throws Exception
     */
    public WsdlInfo(String path) throws Exception
    {
        WsdlProject project = new WsdlProject();
        WsdlInterface[] wsdlInterfaces = WsdlImporter.importWsdl( project, path );
        this.wsdlName = path;
        if(null != wsdlInterfaces)
        {    
            List<InterfaceInfo> interfaces = new ArrayList<InterfaceInfo>();
            for(WsdlInterface wsdlInterface : wsdlInterfaces)
            {
                InterfaceInfo interfaceInfo = new InterfaceInfo(wsdlInterface);
                interfaces.add(interfaceInfo);
            }
            this.interfaces = interfaces;
        }
    }

    public String getWsdlName() {
        return wsdlName;
    }

    public void setWsdlName(String wsdlName) {
        this.wsdlName = wsdlName;
    }

    public List<InterfaceInfo> getInterfaces() {
        return interfaces;
    }

    public void setInterfaces(List<InterfaceInfo> interfaces) {
        this.interfaces = interfaces;
    }
}

/**
 * 
 * InterfaceInfo.java Create on 2016年7月20日 下午9:03:21    
 *    
 * 类功能说明: 接口信息
 *
 * Copyright: Copyright(c) 2013 
 * Company: COSHAHO
 * @Version 1.0
 * @Author 何科序
 */
public class InterfaceInfo 
{
    private String interfaceName;
    
    private List<OperationInfo> operations;
    
    private String[] adrress;
    
    public InterfaceInfo(WsdlInterface wsdlInterface)
    {
        this.interfaceName = wsdlInterface.getName();
        
        this.adrress = wsdlInterface.getEndpoints();
        
        int operationNum = wsdlInterface.getOperationCount();
        List<OperationInfo> operations = new ArrayList<OperationInfo>();
        
        for(int i = 0; i < operationNum; i++)
        {
            WsdlOperation operation = ( WsdlOperation )wsdlInterface.getOperationAt( i );
            OperationInfo operationInfo = new OperationInfo(operation);
            operations.add(operationInfo);
        }
        
        this.operations = operations;
    }

    public String getInterfaceName() {
        return interfaceName;
    }

    public void setInterfaceName(String interfaceName) {
        this.interfaceName = interfaceName;
    }

    public List<OperationInfo> getOperations() {
        return operations;
    }

    public void setOperations(List<OperationInfo> operations) {
        this.operations = operations;
    }
    
    public String[] getAdrress() {
        return adrress;
    }

    public void setAdrress(String[] adrress) {
        this.adrress = adrress;
    }
}

/**
 * 
 * OperationInfo.java Create on 2016年7月20日 下午9:03:42    
 *    
 * 类功能说明:  方法信息 
 *
 * Copyright: Copyright(c) 2013 
 * Company: COSHAHO
 * @Version 1.0
 * @Author 何科序
 */
public class OperationInfo 
{
    private String operationName;
    
    private String requestXml;
    
    private String responseXml;

    public OperationInfo(WsdlOperation operation)
    {
        operationName = operation.getName();
        requestXml = operation.createRequest( true );
        responseXml = operation.createResponse(true);    
    }

    public String getOperationName() {
        return operationName;
    }

    public void setOperationName(String operationName) {
        this.operationName = operationName;
    }

    public String getRequestXml() {
        return requestXml;
    }

    public void setRequestXml(String requestXml) {
        this.requestXml = requestXml;
    }

    public String getResponseXml() {
        return responseXml;
    }

    public void setResponseXml(String responseXml) {
        this.responseXml = responseXml;
    }
}

测试代码

package com.coshaho.integration;

import com.coshaho.integration.wsdl.InterfaceInfo;
import com.coshaho.integration.wsdl.OperationInfo;
import com.coshaho.integration.wsdl.WsdlInfo;

/**
 * 
 * WSDLParseTest.java Create on 2016年7月20日 下午9:24:36    
 *    
 * 类功能说明: WSDL解析测试  
 *
 * Copyright: Copyright(c) 2013 
 * Company: COSHAHO
 * @Version 1.0
 * @Author 何科序
 */
public class WSDLParseTest 
{
    public static void main(String[] args) throws Exception
    {
        String url = "http://webservice.webxml.com.cn/WebServices/ChinaOpenFundWS.asmx?wsdl";
        WsdlInfo wsdlInfo = new WsdlInfo(url);
        System.out.println("WSDL URL is " + wsdlInfo.getWsdlName());
        
        for(InterfaceInfo interfaceInfo : wsdlInfo.getInterfaces())
        {
            System.out.println("Interface name is " + interfaceInfo.getInterfaceName());
            for(String ads : interfaceInfo.getAdrress())
            {
                System.out.println("Interface address is " + ads);
            }
            for(OperationInfo operation : interfaceInfo.getOperations())
            {
                System.out.println("operation name is " + operation.getOperationName());
                System.out.println("operation request is ");
                System.out.println("operation request is " + operation.getRequestXml());
                System.out.println("operation response is ");
                System.out.println(operation.getResponseXml());
            }
        }
    }
}

测试结果

WSDL URL is http://webservice.webxml.com.cn/WebServices/ChinaOpenFundWS.asmx?wsdl
Interface name is ChinaOpenFundWSSoap12
Interface address is http://webservice.webxml.com.cn/WebServices/ChinaOpenFundWS.asmx
operation name is getFundCodeNameDataSet
operation request is 
operation request is <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:web="http://WebXml.com.cn/">
   <soap:Header/>
   <soap:Body>
      <web:getFundCodeNameDataSet/>
   </soap:Body>
</soap:Envelope>
operation response is 
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:web="http://WebXml.com.cn/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <soap:Header/>
   <soap:Body>
      <web:getFundCodeNameDataSetResponse>
         <!--Optional:-->
         <web:getFundCodeNameDataSetResult>
            <xs:schema>
               <!--Ignoring type [{http://www.w3.org/2001/XMLSchema}schema]-->
            </xs:schema>
            <!--You may enter ANY elements at this point-->
         </web:getFundCodeNameDataSetResult>
      </web:getFundCodeNameDataSetResponse>
   </soap:Body>
</soap:Envelope>
operation name is getFundCodeNameString
operation request is 
operation request is <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:web="http://WebXml.com.cn/">
   <soap:Header/>
   <soap:Body>
      <web:getFundCodeNameString/>
   </soap:Body>
</soap:Envelope>
operation response is 
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:web="http://WebXml.com.cn/">
   <soap:Header/>
   <soap:Body>
      <web:getFundCodeNameStringResponse>
         <!--Optional:-->
         <web:getFundCodeNameStringResult>
            <!--Zero or more repetitions:-->
            <web:string>?</web:string>
         </web:getFundCodeNameStringResult>
      </web:getFundCodeNameStringResponse>
   </soap:Body>
</soap:Envelope>
operation name is getOpenFundDataSet
operation request is 
operation request is <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:web="http://WebXml.com.cn/">
   <soap:Header/>
   <soap:Body>
      <web:getOpenFundDataSet>
         <!--Optional:-->
         <web:userID>?</web:userID>
      </web:getOpenFundDataSet>
   </soap:Body>
</soap:Envelope>
operation response is 
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:web="http://WebXml.com.cn/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <soap:Header/>
   <soap:Body>
      <web:getOpenFundDataSetResponse>
         <!--Optional:-->
         <web:getOpenFundDataSetResult>
            <xs:schema>
               <!--Ignoring type [{http://www.w3.org/2001/XMLSchema}schema]-->
            </xs:schema>
            <!--You may enter ANY elements at this point-->
         </web:getOpenFundDataSetResult>
      </web:getOpenFundDataSetResponse>
   </soap:Body>
</soap:Envelope>