Learn Jackson DataFormat: The use of the Avro framework

Learn Jackson DataFormat: The use of the Avro framework Jackson is a high -performance JSON processing library widely used in Java.It provides many convenient functions, which can easily convert the Java object to JSON format and convert JSON data back to the Java object.However, sometimes we need to transmit data between different applications, and due to some specific needs, the JSON format may not meet our requirements.In this case, we can use AVRO as an alternative. It is a data serialization and desertile framework, which can provide a very compact and efficient binary data format. To use Jackson DataFormat: Avro, we first need to add it to the dependency item of the project.In the Maven project, we can implement it by adding the following code to the pom.xml file: <dependency> <groupId>com.fasterxml.jackson.dataformat</groupId> <artifactId>jackson-dataformat-avro</artifactId> <version>2.12.1</version> </dependency> Once we add dependencies, we can start learning how to use Jackson DataFormat: Avro to serialize and deeperate data. First of all, we need to define a Java class to indicate data that we want to serialize and deepen.Let's take a simple user class as an example: public class User { private String name; private int age; public User() {} public User(String name, int age) { this.name = name; this.age = age; } // omit the getter and setter method } Next, we need to create an ObjectMapper object, which is the main API of Jackson to process the serialization and derivativeization of data.We also need to use Avrofactory to configure ObjectMapper to use AVRO format: ObjectMapper mapper = new ObjectMapper(new AvroFactory()); Now, we can use ObjectMapper to serialize the Java object to the byte array of the AVRO format: User user = new user ("Zhang San", 25); byte[] avroData = mapper.writeValueAsBytes(user); To bring AVRO data to the Java object, we can use the readvalue method of ObjectMapper: User deserializedUser = mapper.readValue(avroData, User.class); In this way, we successfully use the Jackson DataFormat: AVRO framework to convert data from the Java object to the byte array of AVRO format, and return to the Java object from the byte array. In addition to the above basic usage, Jackson DataFormat: Avro also provides many other functions and configuration options.By consulting the official documentation, we can learn more about the use of Jackson DataFormat: Avro and detailed configuration options. To sum up, the Jackson DataFormat: Avro framework provides a simple way to use AVRO formatization and back -sequence data in Java applications.Through the above simple examples, we can learn how to use Jackson DataFormat: Avro framework from scratch, and we can conduct further practice and in -depth research according to our own needs.