Jsons工具类，使用jackson工具类封装

JsonUtils.java

import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.List;

public class JsonUtils {

	private static final ObjectMapper BASIC = new BasicObjectMapper();
	private static class BasicObjectMapper extends ObjectMapper {
		private BasicObjectMapper() {
			super();
			configure(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_AS_NULL, true);
			configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
		}
	}

	public static String toJson(Object obj) {
	    if (CommonUtils.isBlank(obj)) {
	        return null;
        }
        try {
            return BASIC.writeValueAsString(obj);
        } catch (Exception e) {
            throw new RuntimeException(String.format("object(%s) to json exception", obj), e);
        }
	}

	public static <T> T toObject(String json, Class<T> clazz) {
		try {
			return BASIC.readValue(json, clazz);
		} catch (Exception e) {
			throw new RuntimeException(String.format("json(%s) to object(%s) exception", json, clazz.getName()), e);
		}
	}
    public static <T> T toObjectNil(String json, Class<T> clazz) {
        try {
            return BASIC.readValue(json, clazz);
        } catch (Exception e) {
            if (Logs.ROOT_LOG.isErrorEnabled()) {
                Logs.ROOT_LOG.error(String.format("json(%s) to object(%s) exception", json, clazz.getName()), e);
            }
            return null;
        }
    }

    public static <T> List<T> toList(String json, Class<T> clazz) {
        try {
            return BASIC.readValue(json, BASIC.getTypeFactory().constructCollectionType(List.class, clazz));
        } catch (Exception e) {
            throw new RuntimeException(String.format("json(%s) to List<%s> exception", json, clazz.getName()), e);
        }
    }
    public static <T> List<T> toListNil(String json, Class<T> clazz) {
        try {
            return BASIC.readValue(json, BASIC.getTypeFactory().constructCollectionType(List.class, clazz));
        } catch (Exception e) {
            if (Logs.ROOT_LOG.isErrorEnabled()) {
                Logs.ROOT_LOG.error(String.format("json(%s) to List<%s> exception", json, clazz.getName()), e);
            }
            return null;
        }
    }
}