
In order to read a YAML file and convert it into a Java Object (POJO) you can make use of the Java Jackson Library,
Gradle Dependency:'com.fasterxml.jackson.dataformat', name: 'jackson-dataformat-yaml', version: '2.13.4'
Maven Dependency:
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-yaml</artifactId>
<version>2.13.4</version>
</dependency>
YAML File: Student.yaml
name: Andy
age: 24
course: Computers Science
subjects:
- C
- C++
- Java
- Python
- React
Student.java (POJO
public class Student {
private String name;
private int age;
private String course;
private String[] subjects;
public Student() {
//Default Constructor
}
public Student(String name, int age, String course, String[] subjects) {
this.name = name;
this.age = age;
this.course = course;
this.subjects = subjects;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getCourse() {
return course;
}
public void setCourse(String course) {
this.course = course;
}
public String[] getSubjects() {
return subjects;
}
public void setSubjects(String[] subjects) {
this.subjects = subjects;
}
}
ReadYamlFileJacksonExample.java
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
import java.io.File;
import java.io.IOException;
public class ReadYamlFileJacksonExample {
public static void main(String[] args) throws IOException {
File yamlFile = new File("Student.yaml");
ObjectMapper objectMapper = new ObjectMapper(new YAMLFactory());
Student student = objectMapper.readValue(yamlFile, Student.class);
System.out.println(student.getName());
System.out.println(student.getAge());
}
}
Output: Andy
24
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