如何从xml中的值中删除"<“

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class XMLParser {
    public static void main(String[] args) {
        try {
            // 加载XML文件
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document document = builder.parse("input.xml");

            // 获取所有节点
            NodeList nodeList = document.getElementsByTagName("*");

            // 遍历节点
            for (int i = 0; i < nodeList.getLength(); i++) {
                Node node = nodeList.item(i);
                if (node.getNodeType() == Node.TEXT_NODE) {
                    // 获取节点值
                    String value = node.getNodeValue();
                    
                    // 删除"<"值
                    value = value.replace("<", "");

                    // 更新节点值
                    node.setNodeValue(value);
                }
            }

            // 更新XML文件
            // ...

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}