删除父节点DomParser Java
删除父节点DomParser Java
提问于 2021-03-25 04:11:18
我有一个如下所示的XML文件：
<?xml version="1.0" encoding="UTF-8"?>
<Start xmlns="http://soap.sforce.com/2006/04/metadata">
<applicationVisibilities>
<application>Foo1</application>
<default>false</default>
<visible>false</visible>
</applicationVisibilities>
<applicationVisibilities>
<application>Foo2</application>
<default>false</default>
<visible>false</visible>
</applicationVisibilities>
<applicationVisibilities>
<application>Foo3</application>
<default>false</default>
<visible>false</visible>
</applicationVisibilities>
</Start>基于一些与applicationKey相关的逻辑，我想删除下面的XML。我该怎么做呢？目前，我可以删除子节点，但不能删除仅与FOO2相关的applicationVisibilities节点及其所有子节点
<applicationVisibilities>
<application>Foo2</application>
<default>false</default>
<visible>false</visible>
</applicationVisibilities>Java代码：
final NodeList origNodeList = document.getElementsByTagName("applicationVisibilities");
for (int temp = 0; temp < origNodeList.getLength(); temp++) {
Node nNode = origNodeList.item(temp);
if (nNode.getNodeType() == Node.ELEMENT_NODE) {
Element eElement = (Element) nNode;
final String application = eElement.getElementsByTagName("application").item(0).getTextContent();
if(application.equals("Foo2")) {
Node node = eElement.getElementsByTagName("application").item(0);
if (node != null) {
if (node.getNodeName().equals("application")) {
node.getParentNode().removeChild(node);
node.normalize();
eElement.normalize();
}
}
}
}
}回答 1
Stack Overflow用户
回答已采纳
发布于 2021-03-25 05:09:51
在下面的解决方案中，我转换了xml string to classes。然后从Start类的列表中删除指定的应用程序。最后，对象由jackson-dataformat-xml转换为xml字符串。
我使用了以下maven依赖项：
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
<version>2.11.1</version>
</dependency>String xml =
"""
<?xml version="1.0" encoding="UTF-8"?>
<Start xmlns="http://soap.sforce.com/2006/04/metadata">
<applicationVisibilities>
<application>Foo1</application>
<default>false</default>
<visible>false</visible>
</applicationVisibilities>
<applicationVisibilities>
<application>Foo2</application>
<default>false</default>
<visible>false</visible>
</applicationVisibilities>
<applicationVisibilities>
<application>Foo3</application>
<default>false</default>
<visible>false</visible>
</applicationVisibilities>
</Start>
""";public static void main(String[] args) {
XmlMapper xmlMapper = new XmlMapper();
xmlMapper.enable(SerializationFeature.INDENT_OUTPUT);
Start start = null;
try {
start = xmlMapper.readValue(xml, Start.class);
List<applicationVisibilities> tempApplicationVisibilities = start.applicationVisibilities;
for (applicationVisibilities visibility : tempApplicationVisibilities) {
if(visibility.application.equals("Foo2")) {
start.applicationVisibilities.remove(visibility);
String updatedXml = xmlMapper.writeValueAsString(start);
System.out.println(updatedXml);
}
}
} catch (JsonProcessingException e) {
e.printStackTrace();
}
}
public static class applicationVisibilities {
public String application;
@JacksonXmlProperty(localName = "default")
public boolean _default;
public boolean visible;
}
public static class Start {
@JacksonXmlProperty(localName = "applicationVisibilities")
@JacksonXmlElementWrapper(useWrapping = false)
public List<applicationVisibilities> applicationVisibilities;
}输出：
<Start>
<applicationVisibilities>
<application>Foo1</application>
<visible>false</visible>
<default>false</default>
</applicationVisibilities>
<applicationVisibilities>
<application>Foo3</application>
<visible>false</visible>
<default>false</default>
</applicationVisibilities>
</Start>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/66788635
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