package com.lyms.talkonlineweb.util;

import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.HashMap;
import java.util.Map;


/**
 * Created by Administrator on 2019-09-06.
 */
public class JsonUtil {



    /**
     * 对象转换为String
     * @param cls
     * @return
     */
    public static String obj2Str(
            Object cls) {
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            objectMapper.setDateFormat(DateUtil.getDateFormat(DateUtil.YYYY_MM_DD_HH_MM_SS));
            return objectMapper.writeValueAsString(cls);
        } catch (Exception e) {

        }
        return null;
    }

    /**
     * json转换为map
     * @param json
     * @param hashMapClass
     * @return
     */
    public static Map<String, Object> str2Map(String json, Class<HashMap> hashMapClass) {
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            return objectMapper.readValue(json,hashMapClass);
        } catch (Exception e) {

        }
        return null;
    }

    /**
     * 接送转换为对象
     * @param json
     * @param clzz
     * @param <T>
     * @return
     */
    public static <T> T str2Obj(String json, Class<T> clzz) {
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            return objectMapper.readValue(json,clzz);
        } catch (Exception e) {

        }
        return null;
    }
}