[英]Tags dissapear when parsing XML file in java?
我的任務是解析 XML 文件。 XML 文件格式如下:
<?xml version="1.0" encoding="UTF-8"?>
<TestConfiguration>
<Deployment name="PreUpgrade" description="First Test Target">
<Server>
<!-- AnalyticsURL Needs to point to the analytics page -->
<!-- XmlpURL Needs to point to the BI Publisher page -->
<!-- ex: <AnalyticsURL>http://servername:9704/analytics</AnalyticsURL> -->
<!-- ex: <XmlpURL>https://servername/xmlpserver</XmlpURL> -->
<!-- ex: <VaURL>https://servername/va</VaURL> -->
<!-- If you are using a test certificate on the server for SSL and want to
to bypass SSL certificate validation, set the IgnoreSSLCertErrors to true.
This setting is strictly for Test environments only -->
<AnalyticsURL></AnalyticsURL>
<XmlpURL></XmlpURL>
<VaURL></VaURL>
<UserName></UserName>
<Password></Password>
<IgnoreSSLCertErrors>false</IgnoreSSLCertErrors>
</Server>
</Deployment>
<Deployment name="PostUpgrade" description="Second Test Target">
<Server>
<!-- AnalyticsURL Needs to point to the analytics page -->
<!-- XmlpURL Needs to point to the BI Publisher page -->
<!-- ex: <AnalyticsURL>http://servername:9704/analytics</AnalyticsURL> -->
<!-- ex: <XmlpURL>https://servername/xmlpserver</XmlpURL> -->
<!-- ex: <VaURL>https://servername/va</VaURL> -->
<!-- If you are using a test certificate on the server for SSL and want to
to bypass SSL certificate validation, set the IgnoreSSLCertErrors to true.
This setting is strictly for Test environments only -->
<AnalyticsURL></AnalyticsURL>
<XmlpURL></XmlpURL>
<VaURL></VaURL>
<UserName></UserName>
<Password></Password>
<IgnoreSSLCertErrors>false</IgnoreSSLCertErrors>
</Server>
</Deployment>
</TestConfiguration>
我正在嘗試更改部署標簽中“名稱”屬性的值。 我正在使用以下代碼執行此操作:
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
Document doc = documentBuilder.parse("config.xml")
Node firstDeployment = doc.getElementsByTagName("Deployment").item(0);
Node firstDeploymentName = firstDeployment.getAttributes().getNamedItem("name");
firstDeploymentName.setTextContext("FIRST_DEPLOYMENT");
Node secondDeployment = doc.getElementsByTagName("Deployment").item(1);
Node secondDeploymentName = secondDeployment.getAttributes().getNamedItem("name");
secondDeploymentName.setTextContext("SECOND_DEPLOYMENT");
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new File("config.xml"));
transformer.transform(source, result);
config.xml 文件位於我從中調用 Java 應用程序的目錄中。 我面臨的問題是,在我運行我的程序后,XMl 文件如下所示:
<?xml version="1.0" encoding="UTF-8" standalone="no"?><TestConfiguration>
<Deployment description="First Test Target" name="FIRST_DEPLOYMENT">
<Server>
<!-- AnalyticsURL Needs to point to the analytics page -->
<!-- XmlpURL Needs to point to the BI Publisher page -->
<!-- ex: <AnalyticsURL>http://servername:9704/analytics</AnalyticsURL> -->
<!-- ex: <XmlpURL>https://servername/xmlpserver</XmlpURL> -->
<!-- ex: <VaURL>https://servername/va</VaURL> -->
<!-- If you are using a test certificate on the server for SSL and want to
to bypass SSL certificate validation, set the IgnoreSSLCertErrors to true.
This setting is strictly for Test environments only -->
<AnalyticsURL/>
<XmlpURL/>
<VaURL/>
<UserName/>
<Password/>
<IgnoreSSLCertErrors>false</IgnoreSSLCertErrors>
</Server>
</Deployment>
<Deployment description="Second Test Target" name="SECOND_DEPLOYMENT">
<Server>
<!-- AnalyticsURL Needs to point to the analytics page -->
<!-- XmlpURL Needs to point to the BI Publisher page -->
<!-- ex: <AnalyticsURL>http://servername:9704/analytics</AnalyticsURL> -->
<!-- ex: <XmlpURL>https://servername/xmlpserver</XmlpURL> -->
<!-- ex: <VaURL>https://servername/va</VaURL> -->
<!-- If you are using a test certificate on the server for SSL and want to
to bypass SSL certificate validation, set the IgnoreSSLCertErrors to true.
This setting is strictly for Test environments only -->
<AnalyticsURL/>
<XmlpURL/>
<VaURL/>
<UserName/>
<Password>
<IgnoreSSLCertErrors>false</IgnoreSSLCertErrors>
</Server>
</Deployment>
</TestConfiguration>
似乎 AnalyticsURL、XmlpURL、VaURL、UserName 和 Password 的開始標簽在不應該從文件中刪除時? 我的代碼做錯了嗎? 我試圖找出我哪里出錯了,但似乎無法提出解決方案。
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