我正在尝试创建一个 xml 树并将每个元素保存在一个单独的文本文件中,例如:-
<product>
<product_id value="1">
<tab_id value ="3" />
</product_id>
</product>
将以上内容另存为1.txt
和:
<product>
<product_id value="2">
<tab_id value ="5" />
</product_id>
</product>
上面另存为2.txt
我正在尝试这个:-
package ep;
import java.io.File;
import java.util.Random;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class Tclass {
public static void main(String argv[]) {
try {
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
// root elements
Document doc = docBuilder.newDocument();
Element rootElement = doc.createElement("products");
doc.appendChild(rootElement);
int a = 351;
Random rand = new Random();
int maximum = 5;
int minimum = 2;
int range = maximum - minimum + 1;
for(int x = 1; x < 3; x = x+1)
{
// staff elements
Element staff = doc.createElement("product_id");
rootElement.appendChild(staff);
// shorten way
staff.setAttribute("value", ""+x);
Element tab_id = doc.createElement("tab_id");
staff.appendChild(tab_id);
int randomNum = rand.nextInt(range) + minimum;
// shorten way
tab_id.setAttribute("value", ""+randomNum);
}
// write the content into xml file
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new File("file.xml"));
// Output to console for testing
// StreamResult result = new StreamResult(System.out);
transformer.transform(source, result);
System.out.println("File saved!");
} catch (ParserConfigurationException pce) {
pce.printStackTrace();
} catch (TransformerException tfe) {
tfe.printStackTrace();
}
}
}
我的问题是如何在单独的文本文件中分别处理所有元素?谢谢你。