如何在java中删除文件路径编码%20

Question

我正在尝试使用java在特定路径中创建一个xml文件。 问题是，如果我给出带有空格的文件路径，它会在空格中使用“％20”进行编码。 请帮我解决这个问题。

我给出的文件路径 - “F:/Backup Files/testng2.xml”
编码后 - “F:/Backup%20Files/testng2.xml”

代码：

 TransformerFactory transformerFactory = TransformerFactory.newInstance();
 Transformer transformer = transformerFactory.newTransformer();
 DOMSource source = new DOMSource(doc);
 StreamResult result = new StreamResult(new File("F:/Backup Files/testng2.xml"));       
 transformer.transform(source, result);
 System.out.println("File saved successfully");

错误：

javax.xml.transform.TransformerException: java.io.FileNotFoundException: F:\Backup%20Files\testng2.xml (The system cannot find the path specified)
    at org.apache.xalan.transformer.TransformerIdentityImpl.createResultContentHandler(TransformerIdentityImpl.java:297)
    at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:330)
    at FrameworkKeywords.ConfigurationFunctions.generateTestngXmlFile(ConfigurationFunctions.java:87)
    at FrameworkKeywords.ConfigurationFunctions.main(ConfigurationFunctions.java:29)
Caused by: java.io.FileNotFoundException: F:\Backup%20Files\testng2.xml (The system cannot find the path specified)
    at java.io.FileOutputStream.open0(Native Method)
    at java.io.FileOutputStream.open(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at org.apache.xalan.transformer.TransformerIdentityImpl.createResultContentHandler(TransformerIdentityImpl.java:287)
    ... 3 more
---------
java.io.FileNotFoundException: F:\Backup%20Files\testng2.xml (The system cannot find the path specified)
    at java.io.FileOutputStream.open0(Native Method)
    at java.io.FileOutputStream.open(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at org.apache.xalan.transformer.TransformerIdentityImpl.createResultContentHandler(TransformerIdentityImpl.java:287)
    at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:330)
    at FrameworkKeywords.ConfigurationFunctions.generateTestngXmlFile(ConfigurationFunctions.java:87)
    at FrameworkKeywords.ConfigurationFunctions.main(ConfigurationFunctions.java:29)

Answer 1

尝试将

.getAbsolutePath()

添加到您的

File

，如下所示：

    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    DOMSource source = new DOMSource(doc);
    StreamResult result = new StreamResult(new File("F:/Backup Files/testng2.xml").getAbsolutePath());        
    transformer.transform(source, result);
    System.out.println("File saved successfully");

Answer 2

最好的解决方案是为 StreamResult 提供一个 Writer，而不是一个 File。

// create the xml file
//transform the DOM Object to an XML File
       
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
DOMSource domSource = new DOMSource(document);
try {
    Writer out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(xmlFileOut), StandardCharsets.UTF_8));
    StreamResult streamResult = new StreamResult(out);
    transformer.transform(domSource, streamResult);
 } catch (Exception e) {
    throw new TransformerException(e);
 }