在Java中的XML中的现有节点下添加新节点
下面是我拥有的XML在Java中的XML中的现有节点下添加新节点,java,xml,Java,Xml,下面是我拥有的XML <TrustFrameworkPolicy xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.microsoft.com/online/cpim/schemas/2013/06
<TrustFrameworkPolicy xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns="http://schemas.microsoft.com/online/cpim/schemas/2013/06" PolicySchemaVersion="0.3.0.0" TenantId="{Settings:Tenant}" PolicyId="B2C_1A_User_MigrationClients" PublicPolicyUri="http://{Settings:Tenant}/B2C_1A_User_MigrationClients" DeploymentMode="{Settings:DeploymentMode}" UserJourneyRecorderEndpoint="urn:journeyrecorder:applicationinsights">
<BuildModel>
<RestSchema>
<CustType Id="regular.type1">
<DataType>string</DataType>
</CustType>
<CustType Id="regular.type2">
<DataType>string</DataType>
</CustType>
</RestSchema>
</BuildModel>
</TrustFrameworkPolicy>
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我必须在“RestSchema”下添加新节点
这就是我想要创建新的
<TrustFrameworkPolicy xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns="http://schemas.microsoft.com/online/cpim/schemas/2013/06" PolicySchemaVersion="0.3.0.0" TenantId="{Settings:Tenant}" PolicyId="B2C_1A_User_MigrationClients" PublicPolicyUri="http://{Settings:Tenant}/B2C_1A_User_MigrationClients" DeploymentMode="{Settings:DeploymentMode}" UserJourneyRecorderEndpoint="urn:journeyrecorder:applicationinsights">
<BuildModel>
<RestSchema>
<CustType Id="regular.type1">
<DataType>string</DataType>
</CustType>
<CustType Id="regular.type2">
<DataType>string</DataType>
</CustType>
<CustType Id="regular.Command-Nest.type1">
<DataType>string</DataType>
</CustType>
<CustType Id="regular.Command-Nest.type2">
<DataType>string</DataType>
</CustType>
</RestSchema>
</BuildModel>
</TrustFrameworkPolicy>
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如何使用XPATH实现这一点。我必须在下的现有XML中创建这种类型的结构
我知道如何跟踪标记,我只需要知道如何使用XPATH在java中创建这些标记
private static void addNewCustType(String updatedXMLPath) throws Exception {
System.out.println("Adding new claim types.");
Document document = getXmlAsDocument(updatedXMLPath);
for (int i = 0; i < newClaim.size() ; i++ ) {
// This is how I am traversing to the TAG where I need to add
String expression = "/*[local-name() = 'TrustFrameworkPolicy']/*[local-name() = 'BuildModel']/*[local-name() = 'RestSchema']";
// I need to understand how I can create a node under "above" path...
}
}
private static Document getXmlAsDocument(String fileName) throws Exception {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(fileName);
return doc;
}
private static void addNewCustType(字符串updatedXMLPath)引发异常{
System.out.println(“添加新的索赔类型”);
Document Document=getXmlAsDocument(updatedXMLPath);
对于(int i=0;i
这应该可以做到。写在我的头顶上,未经测试。我已经知道它只适用于没有名称空间的情况。因此,您可以先从文档中剥离名称空间来验证它是否有效。然后再次添加它们,修改代码使其匹配
Document document = getXmlAsDocument(updatedXMLPath);
XPath xpath = XPathFactory.newInstance().newXPath();
Element restSchema = (Element)xpath.evaluate("/TrustFrameworkPolicy/BuildModel/RestSchema", document, XPathConstants.NODE);
Element dataType = document.createElement("DataType");
dataType.appendChild(document.createText("string");
Element custType = document.createElement("CustType");
custType.setAttribute("Id", "regular.Command-Nest.type1");
custType.appendChild(dataType);
restSchema.appendChild(custType);
// finally serialize using the identity transformer
对于名称空间,您必须进行两项更改:
- 使用CreateElements而不是createElement
- 您需要使用名称空间前缀并为xpath引擎提供名称空间上下文,而不是使用我使用的简单xpath