jackson 时间格式的处理

package io.webchat.wdzl.utils;

import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;
import java.util.List;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationConfig;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;

/**
 * @Description: 自定义响应结构, 转换类
 */
public class JsonUtils {
    
    

    // 定义jackson对象
    private static final ObjectMapper MAPPER = new ObjectMapper();

    static {
    
    
    	//设置你想要的格式
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        MAPPER.setDateFormat(sdf);
    }
    /**
     * 将对象转换成json字符串。
     * <p>Title: pojoToJson</p>
     * <p>Description: </p>
     * @param data
     * @return
     */
    public static String objectToJson(Object data) {
    
    
    	try {
    
    
			String string = MAPPER.writeValueAsString(data);
			return string;
		} catch (JsonProcessingException e) {
    
    
			e.printStackTrace();
		}
    	return null;
    }

    /**
     * 将json结果集转化为对象
     *
     * @param jsonData json数据
     * @param beanType 对象中的object类型
     * @return
     */
    public static <T> T jsonToPojo(String jsonData, Class<T> beanType) {
    
    
        try {
    
    
            T t = MAPPER.readValue(jsonData, beanType);
            return t;
        } catch (Exception e) {
    
    
        	e.printStackTrace();
        }
        return null;
    }

    /**
     * 将json数据转换成pojo对象list
     * <p>Title: jsonToList</p>
     * <p>Description: </p>
     * @param jsonData
     * @param beanType
     * @return
     */
    public static <T>List<T> jsonToList(String jsonData, Class<T> beanType) {
    
    
    	JavaType javaType = MAPPER.getTypeFactory().constructParametricType(List.class, beanType);
    	try {
    
    
    		List<T> list = MAPPER.readValue(jsonData, javaType);
    		return list;
		} catch (Exception e) {
    
    
			e.printStackTrace();
		}

    	return null;
    }

    public static void main(String[] args) {
    
    
        String date = JsonUtils.objectToJson(new Date());
        System.out.println(date);
    }

}