使用JAVA比较两个xml文件

import com.xmlunit.matchers.XmlMatchers;
import com.xmlunit.transformer.Transformer;
import com.xmlunit.transformer.Transformers;
import org.junit.Test;
import org.xmlunit.matchers.CompareMatcher;
import org.xmlunit.matchers.ContainsMatcher;
import org.xmlunit.matchers.EndsWithMatcher;
import org.xmlunit.matchers.MatchesMatcher;
import org.xmlunit.matchers.StartsWithMatcher;

import java.io.File;
import java.io.IOException;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;

public class XmlCompareTest {

    @Test
    public void testCompareXmlFiles() throws IOException {
        // Test case 1: two identical XML files
        compareXmlFiles("src/test/resources/example1.xml", "src/test/resources/example1.xml");

        // Test case 2: two XML files with differences in subelements
        compareXmlFiles("src/test/resources/example2.xml", "src/test/resources/example3.xml");

        // Test case 3: two XML files with differences in attributes
        compareXmlFiles("src/test/resources/example4.xml", "src/test/resources/example5.xml");
    }

    private void compareXmlFiles(String file1, String file2) throws IOException {
        // Load both XML files as strings
        String xml1 = new String(Files.readAllBytes(new File(file1).toPath()));
        String xml2 = new String(Files.readAllBytes(new File(file2).toPath()));

        // Use the XMLUnit library to compare the two strings
        assertThat(xml1, XmlMatchers.sameAs(xml2));

        // Replace the strings with objects to be compared
        Object xml1Obj = Transformers.objectNode(xml1);
        Object xml2Obj = Transformers.objectNode(xml2);

        // Use the XMLUnit library to compare the two objects
        assertThat(xml1Obj, XmlMatchers.sameAs(xml2Obj));
    }
}