Use the Simple XML framework in the Java Library to resolve XML files Simplified Chinese knowledge article: To use the Simple XML framework to parse the XML file, we first need to import the related library of Simple XML.It can be implemented by adding the following dependencies to Maven or Gradle configuration files:: <dependency> <groupId>org.simpleframework</groupId> <artifactId>simple-xml</artifactId> <version>2.7.1</version> </dependency> Next, we need to define a POJO class to represent the data in the XML file.This POJO class should include fields and attributes we need to parse.For example, if we have an XML element called "BOOK", it contains the "Title" and "Author" properties, and we can define a POJO class called "Book" to represent it: @Root(name = "Book") public class Book { @Element(name = "title") private String title; @Element(name = "author") private String author; // getters and setters } In the above code, the name of the XML element and attributes is specified using the annotations of the Simple XML framework.In the class level, we use the name of the XML root element as "BOOK" with the `@root` annotation.At the field level, we use the@Element` annotation to specify the name of the field corresponding to the XML element. Now, we can use the Simple XML framework to analyze the XML file.First of all, we need to create an object of a `Serializer`, and then use the` Read` method to read data from the XML file and convert it into an instance of the POJO class we defined: Serializer serializer = new Persister(); File inputFile = new File("input.xml"); Book book = serializer.read(Book.class, inputFile); System.out.println("Title: " + book.getTitle()); System.out.println("Author: " + book.getAuthor()); In the above code, we created a `Serializer` object and used it to read the XML file.The `Read` method accepts two parameters: the` class` object of the POJO class and the XML file object.It will return an instance of the POJO class, and we can obtain data in XML by accessing its field. After completing the above steps, we can obtain data in the XML file by accessing fields in the POJO class.In the above sample code, we obtained the values of the "Title" and "Author" fields and printed it to the console. In addition to analyzing XML files, the Simple XML framework can also be used to generate XML files.We can write the POJO object into the XML file: Serializer serializer = new Persister(); File outputFile = new File("output.xml"); Book book = new Book(); book.settital ("java programming"); book.setauthor ("Zhang San"); serializer.write(book, outputFile); In the above code, we created a POJO object `Book` and set the value of its field.Then, we use the `write` method of the Simple XML framework to write the` Book` object into the XML file.The `write` method accepts two parameters: POJO object and XML file object. Through the above steps, we show how to use the Simple XML framework to analyze and generate XML files.The simple and ease of use of the framework makes it very convenient to process XML files.I hope this article will be helpful to you when analyzing the XML file!