Java 格式化 XML

项目中会有XML报文，格式化后便于查看

import com.sun.org.apache.xml.internal.serialize.OutputFormat;
import com.sun.org.apache.xml.internal.serialize.XMLSerializer;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;

/**
 * @ClassName: XmlUtils
 * @Description: XmlUtils
 * @Author: [email protected]
 * @Date: 2019/7/25 15:29
 * @Version: 1.0
 **/
public final class XmlUtils {
    public static String format(String unformattedXml) {
        try {
            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
            DocumentBuilder db = dbf.newDocumentBuilder();
            InputSource is = new InputSource(new StringReader(unformattedXml));
            final Document document = db.parse(is);
            OutputFormat format = new OutputFormat(document);
            format.setLineWidth(65);
            format.setIndenting(true);
            format.setIndent(2);
            Writer out = new StringWriter();
            XMLSerializer serializer = new XMLSerializer(out, format);
            serializer.serialize(document);
            return out.toString();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}