MessagePack Java Jackson Dataformat - POJO 的序列化和反序列化

在本測試代碼中，咱們定義了一個 POJO 類，名字爲 MessageData，你能夠訪問下面的連接找到有關這個類的定義。

https://github.com/cwiki-us-demo/serialize-deserialize-demo-java/blob/master/src/main/java/com/insight/demo/serialize/model/msgpack/MessageData.java

POJO 的序列化和反序列化

你僅僅須要對 MessagePackFactory 進行實例化，而後傳遞參數到 com.fasterxml.jackson.databind.ObjectMapper 的構造方法。

而後你就能夠用與 jackson-databind 相同的方法使用 MessagePack 格式化數據。

本測試方法，能夠在 https://github.com/cwiki-us-demo/serialize-deserialize-demo-java/blob/master/src/test/java/com/insight/demo/serialize/MessagePackSerializer.java 中找到。

/**
 * SerializationPOJO
 */
@Test
public void testMessagePackSerializationPOJO() {
 
    byte[] bytes = new byte[0];
    String uuid = UUID.randomUUID().toString();
 
    // Instantiate ObjectMapper for MessagePack
    ObjectMapper objectMapper = new ObjectMapper(new MessagePackFactory());
 
 
    MessageData pojo = new MessageData();
    pojo.setUuid(uuid);
    pojo.setName("CWIKI.US");
 
 
    try {
        // Serialize a Java object to byte array
        bytes = objectMapper.writeValueAsBytes(pojo);
        logger.debug("Length of Bytes: [{}]", bytes.length);
 
        // Deserialize the byte array to a Java object
        MessageData deserialized = objectMapper.readValue(bytes, MessageData.class);
        logger.debug("Deserialized Name: [{}]", deserialized.name);
 
        assertEquals("CWIKI.US", deserialized.name);
 
    } catch (JsonProcessingException ex) {
        logger.error("Serialize Error", ex);
    } catch (IOException e) {
        e.printStackTrace();
    }
 
}

https://www.cwiki.us/display/Serialization/MessagePack+Jackson+Dataformat