使用 SAAJ 使用经过身份验证的 Web 服务?

Consuming an authenticated web service using SAAJ?

我正在尝试使用 SAAJ 使用经过身份验证的 Web 服务。这是我到目前为止的代码:

import java.io.ByteArrayOutputStream;

import javax.xml.soap.*;
import biz.source_code.base64Coder.*;


public class Client {
    private static String endpoint = "https://example.com/xxx.php",
    username = "xxx", password = "xxx";

    private static SOAPMessage getRequest() throws Exception{
        MessageFactory factory = MessageFactory.newInstance();
        SOAPMessage message = factory.createMessage();

        //set authorization as a HTTP header
        String authorization = Base64Coder.encodeString(username + ":" + password);
        MimeHeaders hd = message.getMimeHeaders();
        hd.addHeader("Authorization", "Basic " + authorization);

        //Call getReportList operation


        return message;
    }


    public static void main(String[] args) throws Exception {
        SOAPConnectionFactory connFactory = SOAPConnectionFactory.newInstance();
        SOAPConnection connection = connFactory.createConnection();

        // create request message and give it content
        SOAPMessage request = Client.getRequest();

        // call the API endpoint with the request
        SOAPMessage response = connection.call(request, endpoint);

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        response.writeTo(out);
        String strMsg = new String(out.toByteArray());
        System.out.println(strMsg);
    }

}

当我 运行 这样做时,它打印 strMsg(来自 Web 服务的响应)如下:

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Body><SOAP-ENV:Fault><faultcode>WSDL</faultcode><faultstring>SOAP-ERROR: Parsing WSDL: Couldn't load from '/www/example.wsdl' : failed to load external entity "/www/example.wsdl"
</faultstring></SOAP-ENV:Fault></SOAP-ENV:Body></SOAP-ENV:Envelope>

我猜我已经验证了自己的身份,但网络服务有问题,不是我的。但是,我不完全确定。此错误消息似乎并不常见。

这是否意味着我提供的身份验证不正确或不充分?或者我是否必须提供 SSL 证书,因为 Web 服务使用 SSL?如果是,是否有关于如何将 SSL 证书与 SAAJ 一起使用的教程?

问题是我使用的是“https://example.com/xxx.php" as the endpoint not "https://example.com/xxx.php?wsdl”。这就是它无法加载任何 wsdl 文件的原因。