java - getSOAPBody 返回 NULL 而 SOAPResponse.writeTo 打印整个消息，奇怪吗？

Question

我提供了一个 Java 代码，我在堆栈溢出的某个地方找到了它，我想为我的目的使用类似的东西。这段代码工作正常，但我面临一个持续存在的问题。检查我在代码中完成的系统输出。我为获取响应的 SOAP 主体而打印的前 2 个系统输出返回空值，而当我尝试打印整个响应时，它会准确打印。很奇怪。

有谁知道为什么会发生这种情况以及如何解决它。我正在使用 JDK 1.7

package trials;

import javax.xml.soap.MessageFactory;
import javax.xml.soap.MimeHeaders;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPConnection;
import javax.xml.soap.SOAPConnectionFactory;
import javax.xml.soap.SOAPElement;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPMessage;
import javax.xml.soap.SOAPPart;


public class SOAPClientSAAJ {

public static void main(String args[]) throws Exception {
    // Create SOAP Connection
    SOAPConnectionFactory soapConnectionFactory = SOAPConnectionFactory.newInstance();
    SOAPConnection soapConnection = soapConnectionFactory.createConnection();

    // Send SOAP Message to SOAP Server
    String url = "http://ws.cdyne.com/emailverify/Emailvernotestemail.asmx";
    SOAPMessage soapResponse = soapConnection.call(createSOAPRequest(), url);

    System.out.println("Body");

    // print SOAP Response
    System.out.print("Response SOAP Message:");

   System.out.println("SOAP Body 2= " + soapResponse.getSOAPBody());

   System.out.println("SOAP Body 2=" + soapResponse.getSOAPPart().getEnvelope().getBody());

    soapResponse.writeTo(System.out);


    soapConnection.close();
}

private static SOAPMessage createSOAPRequest() throws Exception {
    MessageFactory messageFactory = MessageFactory.newInstance();
    SOAPMessage soapMessage = messageFactory.createMessage();
    SOAPPart soapPart = soapMessage.getSOAPPart();

    String serverURI = "http://ws.cdyne.com/";

    // SOAP Envelope
    SOAPEnvelope envelope = soapPart.getEnvelope();
    envelope.addNamespaceDeclaration("example", serverURI);

    /*
    Constructed SOAP Request Message:
    <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:example="http://ws.cdyne.com/">
        <SOAP-ENV:Header/>
        <SOAP-ENV:Body>
            <example:VerifyEmail>
                <example:email>mutantninja@gmail.com</example:email>
                <example:LicenseKey>123</example:LicenseKey>
            </example:VerifyEmail>
        </SOAP-ENV:Body>
    </SOAP-ENV:Envelope>
     */

    // SOAP Body
    SOAPBody soapBody = envelope.getBody();
    SOAPElement soapBodyElem = soapBody.addChildElement("VerifyEmail", "example");
    SOAPElement soapBodyElem1 = soapBodyElem.addChildElement("email", "example");
    soapBodyElem1.addTextNode("mutantninja@gmail.com");
    SOAPElement soapBodyElem2 = soapBodyElem.addChildElement("LicenseKey", "example");
    soapBodyElem2.addTextNode("123");

    MimeHeaders headers = soapMessage.getMimeHeaders();
    headers.addHeader("SOAPAction", serverURI  + "VerifyEmail");

    soapMessage.saveChanges();


    /* Print the request message */
    System.out.print("Request SOAP Message:");
    soapMessage.writeTo(System.out);        
    System.out.println();




    return soapMessage;
}

这是我在控制台上得到的输出

Request SOAP Message:<SOAP-ENV:Envelope xmlns:SOAP- ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:example="http://ws.cdyne.com/"><SOAP-ENV:Header/><SOAP-ENV:Body><example:VerifyEmail><example:email>mutantninja@gmail.com</example:email><example:LicenseKey>123</example:LicenseKey></example:VerifyEmail></SOAP-ENV:Body></SOAP-ENV:Envelope>
Body
Response SOAP Message:SOAP Body 2= [soap:Body: null]
SOAP Body 2=[soap:Body: null]
<?xml version="1.0" encoding="utf-8"?><soap:Envelope  xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soap:Body><VerifyEmailResponse xmlns="http://ws.cdyne.com/"><VerifyEmailResult><ResponseText>Mail Server will accept email</ResponseText><ResponseCode>3</ResponseCode><LastMailServer>gmail-smtp-in.l.google.com</LastMailServer><GoodEmail>true</GoodEmail></VerifyEmailResult></VerifyEmailResponse></soap:Body></soap:Envelope>

Answer 1

Node 的

toString() 实现为 ["+getNodeName()+": "+getNodeValue()+"],对于元素节点，getNodeValue() 将为 null。因此，您将得到 [soap:Body: null]。

但是，实体就在那里，您可以像往常一样使用它。

尝试以下操作以查看所有元素是否都存在:

SOAPBody body = soapResponse.getSOAPBody();
System.out.println(body.getElementsByTagName("ResponseText").item(0).getTextContent());
System.out.println(body.getElementsByTagName("ResponseCode").item(0).getTextContent());
System.out.println(body.getElementsByTagName("GoodEmail").item(0).getTextContent());