How to use the Jackson DataFormat XML framework to achieve interoperability between XML and JSON
How to use the Jackson DataFormat XML framework to achieve interoperability between XML and JSON
Jackson is a popular Java library that serializes and derived between JSON and Java objects.Jackson also provides a Jackson DataFormat XML module for conversion between XML and JSON.
This article will guide you how to use the Jackson DataFormat XML module to achieve interoperability between XML and JSON.Here are some examples to help you better understand this process.
1. First, you need to add Jackson DataFormat XML libraries to the project.
Gradle：
implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.12.4'
Maven：
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
<version>2.12.4</version>
</dependency>
2. Convert Java objects to XML
Suppose we have a Java object, as shown below:
public class Person {
private String name;
private int age;
// omit the constructor and getter/setter
}
In order to convert the Java object to XML, we can use the following code:
ObjectMapper objectMapper = new XmlMapper();
Person Person = New Person ("Zhang San", 25);
try {
String xml = objectMapper.writeValueAsString(person);
System.out.println(xml);
} catch (JsonProcessingException e) {
e.printStackTrace();
}
The above code will output the following xml:
<Person>
<name> Zhang San </name>
<age>25</age>
</Person>
3. Convert XML to Java object
Suppose we have a XML string, as shown below:
<Person>
<name> Li Si </name>
<age>30</age>
</Person>
In order to convert the XML string to Java object, we can use the following code:
ObjectMapper objectMapper = new XmlMapper();
String xml = "<Person><name>李四</name><age>30</age></Person>";
try {
Person person = objectMapper.readValue(xml, Person.class);
System.out.println
System.out.println ("age:" + Person.getage ());
} catch (JsonProcessingException e) {
e.printStackTrace();
}
The above code will be output:
Name: Li Si
Age: 30
Through the above examples, you can see how to use the Jackson DataFormat XML module between XML and JSON.You can customize according to your needs to handle more complex XML and JSON structures.
I hope this article can help you understand how to use the Jackson DataFormat XML framework to achieve mutual transfer between XML and JSON.I wish you a happy code!
