java - 在 Java 中编写 XML FileNotFoundException

Question

我遇到了以下代码的一些问题

       try {
            DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();

            //root elements
            Document doc = docBuilder.newDocument();

            Element rootElement = doc.createElement("subcompany");
            doc.appendChild(rootElement);

            //id elements
            Element id = doc.createElement("id");
            id.appendChild(doc.createTextNode(subCompanyId != null ? subCompanyId : " "));
            rootElement.appendChild(id);

            TransformerFactory transformerFactory = TransformerFactory.newInstance();
            Transformer transformer = transformerFactory.newTransformer();
            DOMSource source = new DOMSource(doc);

            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");

            String xmlPath = "/project/MallDirectory/mall";

            //EDITED for File creation before writing.
            boolean isFileCreated = new File(xmlPath, "subcompany.xml").createNewFile();
            System.out.println(isFileCreated);                

            StreamResult result = new StreamResult(new File(xmlPath, "subcompany.xml"));

            transformer.transform(source, result);

        } catch (Exception ex) {
            ex.printStackTrace();
        }

运行后，出现以下错误:

javax.xml.transform.TransformerException: java.io.FileNotFoundException: file:/project/MallDirectory/mall/subcompany.xml (No such file or directory)

它曾经用于我的其他项目，但这次不行。这里究竟出了什么问题？

已编辑:

这是我要写入的路径。文件已创建，但它是空的。

Answer 1

我设法解决了这个问题。

这里是错误:

javax.xml.transform.TransformerException: java.io.FileNotFoundException: file:/project/MallDirectory/mall/subcompany.xml (No such file or directory)

我在想，也许转换器正在尝试将 xml 写入此路径“file:/project/MallDirectory/mall/subcompany.xml”。我不知道它是怎么发生的，因为我已经专门设置了文件路径“/project/MallDirectory/mall/subcompany.xml”，并且没有以“file:/”为前缀。

因此，我以某种方式设法通过这样做来修复它:

...

//ERROR CODE:
//StreamResult result = new StreamResult(new File(xmlPath, "subcompany.xml"));
//
StreamResult result = new StreamResult(new File(xmlPath, "subcompany.xml").getPath());
transformer.transform(source, result);

...