Java 如何从SOAP头中获取头元素名称和值？

如何从soap请求头中获取用户ID和密码标记名和值

我的请求xml

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ws="http://WS.com/">
<soapenv:Header>
<userID>34</userID>
<password>test</password>
</soapenv:Header>
<soapenv:Body>
</soapenv:Body>
</soapenv:Envelope>

我想获取用户名和密码来验证请求

请帮忙

谢谢

尝试使用以下代码：

// raw SOAP input as String
String input = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:ws=\"http://WS.com/\">"
             + "<soapenv:Header>"
             + "<userID>34</userID>"
             + "<password>test</password>"
             + "</soapenv:Header>"
             + "<soapenv:Body>"
             + "</soapenv:Body>"
             + "</soapenv:Envelope>";

// Use MessageFactory with raw input as byte array
InputStream is = new ByteArrayInputStream(input.getBytes());
SOAPMessage message = MessageFactory.newInstance().createMessage(null, is);
SOAPPart soapPart = message.getSOAPPart();
SOAPEnvelope envelope = soapPart.getEnvelope();
SOAPHeader header = envelope.getHeader();

// obtain all Nodes tagged 'userID' or 'password'
NodeList userIdNode = header.getElementsByTagNameNS("*", "userID");
NodeList passwordNode = header.getElementsByTagNameNS("*", "password");

// extract the username and password
String userId = userIdNode.item(0).getChildNodes().item(0).getNodeValue();
String password = passwordNode.item(0).getChildNodes().item(0).getNodeValue();

System.out.println("userID: " + userId);
System.out.println("password: " + password);

---

我在字符串userId=userIdNode.item（0.getChildNodes（）.item（0.getNodeValue）的行中得到“java.lang.NullPointerException”；我仍然在字符串userId=userIdNode.item（0.getNodeValue（）行中得到“java.lang.NullPointerException”；NodeList使用的java导入是什么？我仍然在字符串userId=userIdNode.item（0.getNodeValue（）行中得到“java.lang.NullPointerException”；导入org.w3c.dom.NodeListSystem.out.println（userIdNode.getLength（））后，打印0（零）。我只使用上面的代码获取标题，如果我错了，请帮助。请查看下面给出的答案。代码已经过测试，现在正在运行。

// raw SOAP input as String
String input = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:ws=\"http://WS.com/\">"
             + "<soapenv:Header>"
             + "<userID>34</userID>"
             + "<password>test</password>"
             + "</soapenv:Header>"
             + "<soapenv:Body>"
             + "</soapenv:Body>"
             + "</soapenv:Envelope>";

// Use MessageFactory with raw input as byte array
InputStream is = new ByteArrayInputStream(input.getBytes());
SOAPMessage message = MessageFactory.newInstance().createMessage(null, is);
SOAPPart soapPart = message.getSOAPPart();
SOAPEnvelope envelope = soapPart.getEnvelope();
SOAPHeader header = envelope.getHeader();

// obtain all Nodes tagged 'userID' or 'password'
NodeList userIdNode = header.getElementsByTagNameNS("*", "userID");
NodeList passwordNode = header.getElementsByTagNameNS("*", "password");

// extract the username and password
String userId = userIdNode.item(0).getChildNodes().item(0).getNodeValue();
String password = passwordNode.item(0).getChildNodes().item(0).getNodeValue();

System.out.println("userID: " + userId);
System.out.println("password: " + password);

userID: 34
password: test