如何在java中调用多个soap服务

Question

我必须制作一个java 模拟器来调用java 中的多个soap 请求。 WSDL 中有 4 个 Soap 请求。我可以通过在 java 中对 XML 进行硬编码来调用一个请求，但我想要一种调用肥皂服务的动态方法。 在网上没有找到任何东西。

package sisII.JNDI;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import javax.xml.soap.*;

public class MessageConnector {

    public String callService (String IDNumber) throws MalformedURLException, IOException, SOAPException {
        String urlString = "http://wsdl_url";
        URL urlForInfWebSvc = new URL(urlString);
        URLConnection UrlConnInfWebSvc = urlForInfWebSvc.openConnection();
        HttpURLConnection httpUrlConnInfWebSvc = (HttpURLConnection) UrlConnInfWebSvc;
        httpUrlConnInfWebSvc.setDoOutput(true);
        httpUrlConnInfWebSvc.setDoInput(true);
        httpUrlConnInfWebSvc.setAllowUserInteraction(true);
        httpUrlConnInfWebSvc.setRequestMethod("POST");
        httpUrlConnInfWebSvc.setRequestProperty("Host", "localhost");
        httpUrlConnInfWebSvc.setRequestProperty("Content-Type","application/soap+xml; charset=utf-8");
        httpUrlConnInfWebSvc.addRequestProperty(header_credentials);
        OutputStreamWriter infWebSvcReqWriter = new OutputStreamWriter(httpUrlConnInfWebSvc.getOutputStream());
        String infWebSvcRequestMessage = 
            "   <soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:req=\"http://def" xmlns:com=\"http://xyz" xmlns:aler=\"http://abc"> " +
                      " <soapenv:Header/>" +
                       "<soapenv:Body>" +
                       ......
                       "</soapenv:Body>" +
                    "</soapenv:Envelope>"  ;

        infWebSvcReqWriter.write(infWebSvcRequestMessage);

        infWebSvcReqWriter.flush();
        BufferedReader infWebSvcReplyReader = new BufferedReader(new InputStreamReader(httpUrlConnInfWebSvc.getInputStream()));
        String line;
        String infWebSvcReplyString = "";
        while ((line = infWebSvcReplyReader.readLine()) != null) {
            infWebSvcReplyString = infWebSvcReplyString.concat(line);
            }
        infWebSvcReqWriter.close();
        infWebSvcReplyReader.close();
        httpUrlConnInfWebSvc.disconnect();
        //System.out.println(infWebSvcReplyString);

        return infWebSvcReplyString ;

        }
    }

Servlet 代码：

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub

        String id = request.getParameter("IdNumber");
        MessageConnector connector = new MessageConnector();
        String responsemessage = connector.callService(id);     
        System.out.println(responsemessage);
        request.setAttribute("responsemessage", responsemessage); 
        request.getRequestDispatcher("/NewFile.jsp").forward(request, response);

        doGet(request, response);
    }

Answer 1

通常，您不想自己创建 SOAP XML。

常见的方法是使用一个接受 WSDL 的框架，并为其生成存根，然后在代码中调用存根。

存根和框架处理所有协议内容，包括从 java 对象生成 XML。

Axis2就是这样一个Java框架。