java - 将 XMl 文件转换为字符串

Question

我正在使用 java 将 xml 文件转换为字符串我的 xml 是

<GTSRequest command="version">
<Authorization account="account" user="user" password="password"/>
</GTSRequest>

Java 代码是

public static void main(String[] args) throws IOException {
    // TODO code application logic here
    String a = System.getProperty("user.dir") + "/XML/Get Current GTS Version.xml";
    System.out.println(convertXMLFileToString(a));

}

public static String convertXMLFileToString(String fileName) {
    try {
        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
        InputStream inputStream = new FileInputStream(new File(fileName));
        org.w3c.dom.Document doc = documentBuilderFactory.newDocumentBuilder().parse(inputStream);
        StringWriter stw = new StringWriter();
        Transformer serializer = TransformerFactory.newInstance().newTransformer();
        serializer.transform(new DOMSource(doc), new StreamResult(stw));
        return stw.toString();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

但是当我将 XMl 转换为 String 时，我的输出将会改变，这是我不想要的。输出为

<?xml version="1.0" encoding="UTF-8" standalone="no"?><GTSRequest command="version">
<Authorization account="account" password="password" user="user"/>
</GTSRequest>

那里有密码和用户更改，按字母顺序排列
我该如何解决这个问题，先谢谢了

Answer 1

您正在将 XML 转换为文档并在序列化之后...

如果您只想让文件像文本文件一样读取文件:

BufferedReader br = new BufferedReader(new FileReader(fileName));
try {
    StringBuilder sb = new StringBuilder();
    String line = br.readLine();

    while (line != null) {
        sb.append(line);
        sb.append(System.lineSeparator());
        line = br.readLine();
    }
    String everything = sb.toString();
} finally {
    br.close();
}