我正在尝试从下面的字符串响应获取来自salesforce的标记值,
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns="http://soap.sforce.com/2006/04/metadata">
<soapenv:Body>
<listMetadataResponse>
<result>
<createdById>00528000001m5RRAAY</createdById>
<createdByName>Hariprasath Thanarajah</createdByName>
<createdDate>1970-01-01T00:00:00.000Z</createdDate>
<fileName>objects/EmailMessage.object</fileName>
<fullName>EmailMessage</fullName>
<id />
<lastModifiedById>00528000001m5RRAAY</lastModifiedById>
<lastModifiedByName>Hariprasath Thanarajah</lastModifiedByName>
<lastModifiedDate>1970-01-01T00:00:00.000Z</lastModifiedDate>
<namespacePrefix />
<type>CustomObject</type>
</result>
</listMetadataResponse>
</soapenv:Body>
</soapenv:Envelope>
上面我们有标记<fullName>
。我需要获取标签内的值并将其放入String数组中。我尝试过使用substring方法,但它只返回一个值。谁能建议我这样做?
答案 0 :(得分:4)
我试过如下,
public static Document loadXMLString(String response) throws Exception
{
DocumentBuilderFactory dbf =DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource(new StringReader(response));
return db.parse(is);
}
public static List<String> getFullNameFromXml(String response, String tagName) throws Exception {
Document xmlDoc = loadXMLString(response);
NodeList nodeList = xmlDoc.getElementsByTagName(tagName);
List<String> ids = new ArrayList<String>(nodeList.getLength());
for(int i=0;i<nodeList.getLength(); i++) {
Node x = nodeList.item(i);
ids.add(x.getFirstChild().getNodeValue());
System.out.println(nodeList.item(i).getFirstChild().getNodeValue());
}
return ids;
}
从上面的代码中,您将获得ID列表。之后,您可以将它们放入String Array并将它们返回到String数组中,如下所示,
List<String> output = getFullNameFromXml(response, "fullName");
String[] strarray = new String[output.size()];
output.toArray(strarray);
System.out.print("Response Array is "+Arrays.toString(strarray));
答案 1 :(得分:0)
如果您只想解析这个单个元素,可以使用SAX或StAX解析器,如https://www.javacodegeeks.com/2013/05/parsing-xml-using-dom-sax-and-stax-parser-in-java.html所述。
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
DefaultHandler handler = new DefaultHandler() {
boolean fullName = false;
public void startElement(String uri, String localName,String qName,
Attributes attributes) throws SAXException {
System.out.println("Start Element :" + qName);
if (qName.equals("fullName")) {
fullName = true;
}
}
public void characters(char ch[], int start, int length) throws SAXException {
if (fullName ) {
System.out.println("Full Name : " + new String(ch, start, length));
fullName = false;
}
}
}
saxParser.parse(mySoapResponse, handler);
或者您可能希望阅读有关JAX-WS API的更多信息,以创建使用Salesforce Web Service的SOAP客户端。
答案 2 :(得分:0)
使用下面的代码来解析SOAP响应并获取元素值。
将XML响应保存在系统上的任何位置。调用方法getResult()。这是一种通用方法。它采用Web服务响应的有效负载类类型并返回java对象。
File xmlFile = new File("response file path from step 1");
Reader fileReader = new FileReader(xmlFile);
BufferedReader bufReader = new BufferedReader(fileReader);
StringBuilder sb = new StringBuilder();
String line = bufReader.readLine();
while (line != null) {
sb.append(line).append("\n");
line = bufReader.readLine();
}
String xml2String = sb.toString();
bufReader.close();
public <T> T getResult(String xml, String path, Class<T> type) {
final Node soapBody = getSoapBody(xml, path);
return getInstance(soapBody, type);
}
private Node getSoapBody(String xml, String path) {
try {
SOAPMessage message = getSoapMessage(xml, path);
Node firstElement = getFirstElement(message);
return firstElement;
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
private SOAPMessage getSoapMessage(String xml, String path) throws SOAPException,
IOException {
MessageFactory factory = MessageFactory.newInstance();
FileInputStream fis = new FileInputStream(path);
BufferedInputStream inputStream = new BufferedInputStream(fis);
return factory.createMessage(new MimeHeaders(), inputStream);
}
private Node getFirstElement(SOAPMessage message) throws SOAPException {
final NodeList childNodes = message.getSOAPBody().getChildNodes();
Node firstElement = null;
for (int i = 0; i < childNodes.getLength(); i++) {
if (childNodes.item(i) instanceof Element) {
firstElement = childNodes.item(i);
break;
}
}
return firstElement;
}
private <T> T getInstance(Node body, Class<T> type) {
try {
JAXBContext jc = JAXBContext.newInstance(type);
Unmarshaller u = jc.createUnmarshaller();
return (T) u.unmarshal(body);
}
catch (JAXBException e) {
throw new RuntimeException(e);
}
}