我試圖從我的XML文檔中獲取屬性ID(fileID
)以用作我的XML拆分的文件名。拆分作品我只需要提取fileID
作爲名稱。Java XML getAttribute
我可以用這個作爲對此的幫助。
這是我的XML文檔
<root>
<envelope fileID="000152OP.XML">
<record id="850">
</record>
</envelope>
<envelope fileID="000153OP.XML">
<record id="850">
</record>
</envelope>
<envelope fileID="000154OP.XML">
<record id="850">
</record>
</envelope>
</root>
這是我的Java代碼將帖子我現在就可以讀取屬性,但它不會產生最後的XML文件。因此,在我的示例中,它創建了具有正確名稱的前兩個文件,但最後一個文件ID「000154OP.XML」未創建。
public static void splitXMLFile (String file) throws Exception {
String[] temp;
String[] temp2;
String[] temp3;
String[] temp4;
String[] temp5;
String[] temp6;
File input = new File(file);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
Document doc = dbf.newDocumentBuilder().parse(input);
XPath xpath = XPathFactory.newInstance().newXPath();
NodeList nodes = (NodeList) xpath.evaluate("//root/envelope", doc, XPathConstants.NODESET);
int itemsPerFile = 1;
Node staff = doc.getElementsByTagName("envelope").item(0);
NamedNodeMap attr = staff.getAttributes();
Node nodeAttr = attr.getNamedItem("fileID");
String node = nodeAttr.toString();
temp = node.split("=");
temp2 = temp[1].split("^\"");
temp3 = temp2[1].split("\\.");
Document currentDoc = dbf.newDocumentBuilder().newDocument();
Node rootNode = currentDoc.createElement("root");
File currentFile = new File("C:\\XMLFiles\\" + temp3[0]+ ".xml");
for (int i=1; i <= nodes.getLength(); i++) {
Node imported = currentDoc.importNode(nodes.item(i-1), true);
rootNode.appendChild(imported);
Node staff2 = doc.getElementsByTagName("envelope").item(i);
NamedNodeMap attr2 = staff2.getAttributes();
Node nodeAttr2 = attr2.getNamedItem("fileID");
String node2 = nodeAttr2.toString();
temp4 = node2.split("=");
temp5 = temp4[1].split("^\"");
temp6 = temp5[1].split("\\.");
if (i % itemsPerFile == 0) {
writeToFile(rootNode, currentFile);
rootNode = currentDoc.createElement("root");
currentFile = new File("C:\\XMLFiles\\" + temp6[0]+".xml");
}
}
writeToFile(rootNode, currentFile);
}
private static void writeToFile(Node node, File file) throws Exception {
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.transform(new DOMSource(node), new StreamResult(new FileWriter(file)));
}