基於jackson的序列化工具類

1.引入maven依賴

		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>2.9.9</version>
		</dependency>

2.工具類代碼如下

public class SerializeUtil {
	private static class Serialize {
		private static ObjectMapper mapper = new ObjectMapper();
	}

	/**
	 * 反序列化爲對象
	 * 
	 * @param json
	 * @param t
	 * @return
	 */
	public static <T> T deserialization(String json, Class<T> t) {
		try {
			T t1 = Serialize.mapper.readValue(json, t);
			return t1;
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
	}
	/**
	 * JSON反序列化成泛型集合
	 *
	 * @param <T>
	 * @param json
	 * @param collectionClass
	 * @param elementClasses
	 * @return
	 */
	public static <T> T deserialization(String json, Class<?> collectionClass, Class<?>... elementClasses) {
		try {
			JavaType constructParametricType = Serialize.mapper.getTypeFactory().constructParametricType(collectionClass, elementClasses);
			T t1 = Serialize.mapper.readValue(json, constructParametricType);
			return t1;
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}

	/**
	 * 序列化
	 * 
	 * @param t
	 * @return
	 */
	public static <T> String serialize(T t) {
		try {
			return Serialize.mapper.writeValueAsString(t);
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
	}

	public static ObjectMapper getMapper() {
		return Serialize.mapper;
	}