java JDOM2、xmlns(xsd)c’ant从XML文档中更改或删除
我没有xml文档的xsd文件,所以我必须更改为默认的xmlns“http://www.w3.org/2001/XMLSchema-instance”来解析xml元素,但这样做有一个问题,当我更改根元素(myroot)的xmlns属性时,会在子元素(数据)中创建另一个属性(xmlns),值为“myxsd.xsd”。 我想忽略或更改xmlns(myxsd.xsd)的值以正确解析文档
我的XML输入:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<myroot xmlns="myxsd.xsd" class="15">
<data att1="all" att2="actual">
<myobject patt1="patt1_value" patt2="patt2_value" patt3="patt3_value">
<p name="p1">page1</p>
<p name="p2">page1</p>
<p name="p3">page1</p>
<p name="p4">page4</p>
</myobject>
</data>
</myroot>
我的XML输出:
<?xml version="1.0" encoding="UTF-8"?>
<myroot xmlns="http://www.w3.org/2001/XMLSchema-instance" class="15">
<data xmlns="myxsd.xsd" att1="all" att2="actual">
<myobject patt1="patt1_value" patt2="patt2_value" patt3="patt3_value">
<p name="p1">page1</p>
<p name="p2">page1</p>
<p name="p3">page1</p>
<p name="p4">page4</p>
</myobject>
</data>
</myroot>
我的代码:
public void Edit_file() throws JDOMException, IOException {
InputStream in = new FileInputStream("C:\\small_test.xml");
SAXBuilder builder = new SAXBuilder();
Document document = builder.build(in);
// getting the root element
Element root = document.getRootElement();
Namespace tempNamespace = Namespace.getNamespace("http://www.w3.org/2001/XMLSchema-instance");
root.setNamespace(tempNamespace);
// iterating over the children
List<Element> data = root.getChildren("data");
for (Element element : data) {
Attribute id = element.getAttribute("att1");
id.setValue("New value");
}
XMLOutputter xmlOutput = new XMLOutputter();
xmlOutput.setFormat(Format.getPrettyFormat());
xmlOutput.output(document, System.out);
}
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