json转换

package com.creditease.publicfund.basic.util;

import java.io.IOException;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.type.CollectionType;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
import com.fasterxml.jackson.module.paramnames.ParameterNamesModule;


public class JsonUtil {

    public static ObjectMapper Mapper;

    static {
        Mapper = getObjectMapper();
    }

    public static ObjectMapper getObjectMapper() {
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
        objectMapper.disable(DeserializationFeature.ADJUST_DATES_TO_CONTEXT_TIME_ZONE);
        JavaTimeModule javaTimeModule = new JavaTimeModule();
        javaTimeModule.addSerializer(LocalDateTime.class,
                new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DateUtil.DEFAULT_DATETIME_FORMAT)));
        javaTimeModule.addSerializer(LocalDate.class,
                new LocalDateSerializer(DateTimeFormatter.ofPattern(DateUtil.DEFAULT_DATE_FORMAT)));
        javaTimeModule.addSerializer(LocalTime.class,
                new LocalTimeSerializer(DateTimeFormatter.ofPattern(DateUtil.DEFAULT_TIME_FORMAT)));
        javaTimeModule.addDeserializer(LocalDateTime.class,
                new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DateUtil.DEFAULT_DATETIME_FORMAT)));
        javaTimeModule.addDeserializer(LocalDate.class,
                new LocalDateDeserializer(DateTimeFormatter.ofPattern(DateUtil.DEFAULT_DATE_FORMAT)));
        javaTimeModule.addDeserializer(LocalTime.class,
                new LocalTimeDeserializer(DateTimeFormatter.ofPattern(DateUtil.DEFAULT_TIME_FORMAT)));
        objectMapper.registerModule(javaTimeModule).registerModule(new ParameterNamesModule());
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

        return objectMapper;
    }

    public static String toJson(Object obj) {
        try {
            return Mapper.writevalueAsString(obj);
        } catch (JsonProcessingException var2) {
            throw new RuntimeException("JsonParse error ObjectToJSONString", var2);
        }
    }

    public static  T parseObject(String str, Class clazz) {
        try {
            return Mapper.readValue(str, clazz);
        } catch (IOException var3) {
            throw new RuntimeException("JsonParse error StringToObject", var3);
        }
    }

    public static  T parseObject(String str, TypeReference type) {
        try {
            return Mapper.readValue(str, type);
        } catch (IOException var3) {
            throw new RuntimeException("JsonParse error StringToObject", var3);
        }
    }

    public static  List parseList(String str, Class elementClass) {
        try {
            ObjectMapper mapper = new ObjectMapper();
            mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
            CollectionType collectionType = mapper.getTypeFactory()
                    .constructCollectionType(ArrayList.class, elementClass);
            return Mapper.readValue(str, collectionType);
        } catch (IOException var3) {
            throw new RuntimeException("JsonParse error StringToList", var3);
        }
    }
}