我有两个xml文件,如下所示。
Compare.xml
<?xml version="1.0"?>
<class>
<student rollno="393">
<firstname>dinkar</firstname>
<lastname>kad</lastname>
<nickname>dinkar</nickname>
<marks>85</marks>
</student>
<student rollno="493">
<firstname>Vaneet</firstname>
<lastname>Gupta</lastname>
<nickname>vinni</nickname>
<marks>95</marks>
</student>
</class>
Reference.xml
<?xml version="1.0"?>
<class>
<student rollno="393">
<firstname>ila</firstname>
<lastname>kad</lastname>
<nickname>dinkar</nickname>
<marks>85</marks>
</student>
<student rollno="493">
<firstname>Vaneet</firstname>
<lastname>Gupta</lastname>
<nickname>vinni</nickname>
<marks>95</marks>
</student>
</class>
现在我需要比较并获得这两个xml文件之间的区别。我还需要将输出导出为日志文件。
在我的代码下面:
package DomParserDemo;
import java.io.File;
import java.util.logging.FileHandler;
import java.util.logging.Logger;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Element;
public class DomParserDemo {
public static void main(String[] args){
try {
File inputFile = new File("input.txt");
DocumentBuilderFactory dbFactory
= DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(inputFile);
doc.getDocumentElement().normalize();
System.out.println("Root element :"
+ doc.getDocumentElement().getNodeName());
NodeList nList = doc.getElementsByTagName("student");
System.out.println("----------------------------");
for (int temp = 0; temp < nList.getLength(); temp++) {
Node nNode = nList.item(temp);
System.out.println("\nCurrent Element :"
+ nNode.getNodeName());
if (nNode.getNodeType() == Node.ELEMENT_NODE) {
Element eElement = (Element) nNode;
System.out.println("Student roll no : "
+ eElement.getAttribute("rollno"));
System.out.println("First Name : "
+ eElement
.getElementsByTagName("firstname")
.item(0)
.getTextContent());
System.out.println("Last Name : "
+ eElement
.getElementsByTagName("lastname")
.item(0)
.getTextContent());
System.out.println("Nick Name : "
+ eElement
.getElementsByTagName("nickname")
.item(0)
.getTextContent());
System.out.println("Marks : "
+ eElement
.getElementsByTagName("marks")
.item(0)
.getTextContent());
}
}
FileHandler handler = new FileHandler("logfile.log");
// Add to the desired logger
Logger logger = Logger.getLogger("");
logger.addHandler(handler);
System.out.println("Log Generated Successfully...!!!");
} catch (Exception e) {
System.out.println("Log Generation Failed..!!!");
e.printStackTrace();
}
}
}
现在我可以看到带有out标签的输出中的xml文件,我需要它的区别,输出应该作为日志文件导出。
请帮助我完成此事并提前感谢。
答案 0 :(得分:0)
您可以使用java-diff-utils
:
https://code.google.com/p/java-diff-utils/wiki/SampleUsage
答案 1 :(得分:0)
谢谢。 我现在的代码: 包比较5;
import org.apache.log4j.Logger;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.List;
import org.custommonkey.xmlunit.DetailedDiff;
import org.custommonkey.xmlunit.Diff;
import org.custommonkey.xmlunit.Difference;
import org.xml.sax.SAXException;
public class ComparisonTest {
final static Logger logger = Logger.getLogger(ComparisonTest.class);
public static void main(String[] args) {
File f1 = new File("D:/reference.xml");
File f2= new File("D:/comparison.xml");
File f3= new File("D:/Activity log.log");
try {
//create a new file if it doesn't
f3.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
FileReader fr1 = null;
FileReader fr2 = null;
try {
fr1 = new FileReader(f1);
fr2 = new FileReader(f2);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
try {
Diff diff = new Diff(fr1, fr2);
System.out.println("Similar? " + diff.similar());
System.out.println("Identical? " + diff.identical());
DetailedDiff detDiff = new DetailedDiff(diff);
List differences = detDiff.getAllDifferences();
for (Object object : differences) {
Difference difference = (Difference)object;
System.out.println("***********************");
System.out.println(difference);
System.out.println("***********************");
}
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
ComparisonTest obj = new ComparisonTest();
obj.runMe("ila");
}
private void runMe(String parameter){
if(logger.isDebugEnabled()){
logger.debug("This is debug : " + parameter);
}
if(logger.isInfoEnabled()){
logger.info("This is info : " + parameter);
}
logger.warn("This is warn : " + parameter);
logger.error("This is error : " + parameter);
logger.fatal("This is fatal : " + parameter);
}
}
答案 2 :(得分:0)
试试这个
private void compare(File file1, File file2) throws Exception {
List<String> list1 = Files.lines(Paths.get(file1.getPath())).collect(Collectors.toList());
List<String> list2 = Files.lines(Paths.get(file2.getPath())).collect(Collectors.toList());
list1.stream().filter(s -> !list2.contains(s)).peek(System.out::println).count() != 0;
list2.stream().filter(s -> !list1.contains(s)).peek(System.out::println).count() != 0;
}
答案 3 :(得分:0)
以上解决方案为我工作,但有一些细微变化:
private static List<String> compareXMLLineByLine(File file1, File file2) throws Exception {
List<String> list1 = Files.lines(Paths.get(file1.getPath())).collect(Collectors.toList());
List<String> list2 = Files.lines(Paths.get(file2.getPath())).collect(Collectors.toList());
return list1.stream().filter(s->!list2.contains(s)).peek(s -> System.out.println("mismatched value: " + s)).collect(Collectors.toList());
}