import j*ax.xml.parsers.DocumentBuilder;
import j*ax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import j*a.io.File;
<p>public class ValidateXML {
public static void main(String[] args) {
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(true);  // 启用验证
factory.setNamespaceAware(true);</p><pre class='brush:php;toolbar:false;'>        // 若使用XSD，可设置：
        // factory.setAttribute("http://j*a.sun.com/xml/jaxp/properties/schemaLanguage",
        // "http://www.w3.org/2001/XMLSchema");

        DocumentBuilder builder = factory.newDocumentBuilder();
        builder.setErrorHandler((exception) -> {
            System.err.println("验证错误: " + exception.getMessage());
        });

        Document doc = builder.parse(new File("example.xml"));
        System.out.println("XML 文件有效。");
    } catch (Exception e) {
        System.err.println("XML 无效: " + e.getMessage());
    }
}

}

from lxml import etree
<p>def validate_xml(xml_path, xsd_path=None):
try:
xml_doc = etree.parse(xml_path)
print("XML 格式良好。")</p><pre class='brush:php;toolbar:false;'>    if xsd_path:
        xsd_doc = etree.parse(xsd_path)
        schema = etree.XMLSchema(xsd_doc)
        if schema.validate(xml_doc):
            print("XML 符合XSD schema。")
        else:
            print("验证失败:")
            for error in schema.error_log:
                print(f" - {error}")
    else:
        print("跳过Schema验证。")

except etree.XMLSyntaxError as e:
    print(f"XML 语法错误: {e}")

使用示例

validate_xml("example.xml", "schema.xsd") # 若无XSD，第二个参数可省略

using System;
using System.Xml;
using System.Xml.Schema;
<p>class Program {
static void Main() {
var settings = new XmlReaderSettings();
settings.ValidationType = ValidationType.Schema;
settings.Schemas.Add(null, "schema.xsd");  // 添加XSD文件</p><pre class='brush:php;toolbar:false;'>    settings.ValidationEventHandler += (sender, args) => {
        Console.WriteLine("验证错误: " + args.Message);
    };

    try {
        using (var reader = XmlReader.Create("example.xml", settings)) {
            while (reader.Read()) { }
        }
        Console.WriteLine("XML 文件有效。");
    }
    catch (XmlException ex) {
        Console.WriteLine("XML 解析失败: " + ex.Message);
    }
}

}