package com.chinaztt.mes.common.util;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;

import java.text.SimpleDateFormat;

/**
 * @Author 张宾
 */
public class JsonUtil {

	private static final ObjectMapper JSON_MAPPER = new ObjectMapper().disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
	static {
		JSON_MAPPER.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
		JSON_MAPPER.registerModule(new JavaTimeModule());
	}

	/**
	 * json转换对应实体
	 * @param json
	 * @param clazz
	 * @param <T>
	 * @return
	 */
	public static <T> T jsonToPojo(String json, Class<T> clazz){
		T t=null;
		try {
			t=JSON_MAPPER.readValue(json,clazz);
		} catch (JsonProcessingException e) {
			e.printStackTrace();
		}
		return t;
	}

	/**
	 * 实体转换成json字符
	 * @param t
	 * @param <T>
	 * @return
	 */
	public static <T> String jsonToString(T t){
		String result=null;
		try {
			result=JSON_MAPPER.writeValueAsString(t);
		} catch (JsonProcessingException e) {
			e.printStackTrace();
		}
		return result;
	}

}