com.github.jchanghong.gson.GsonHelper.kt Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of common-min Show documentation
kotlin java tools
The newest version!
package com.github.jchanghong.gson

import cn.hutool.core.date.DatePattern
import cn.hutool.json.JSONUtil
import com.fasterxml.jackson.annotation.JsonInclude
import com.fasterxml.jackson.core.JsonGenerator
import com.fasterxml.jackson.core.JsonParser
import com.fasterxml.jackson.core.JsonToken
import com.fasterxml.jackson.databind.DeserializationContext
import com.fasterxml.jackson.databind.DeserializationFeature
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.databind.SerializationFeature
import com.fasterxml.jackson.databind.deser.std.StdDeserializer
import com.fasterxml.jackson.databind.module.SimpleModule
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer
import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
import com.github.jchanghong.kotlin.toDateJdk7OrNull
import com.github.jchanghong.log.kInfo
import java.text.SimpleDateFormat
import java.time.LocalDate
import java.time.LocalDateTime
import java.util.*


object JsonHelper {
    /** json to kotlin class ，对个json保证正确性*/
    fun jsonToKotlinClass(json: List): String {
        return Json2kotlinclass.jsonToKotlinClass(json)
    }

    val objectMapper = newJacksonMapper()
    fun newJacksonMapper(): ObjectMapper {
        val objectMapper = jacksonObjectMapper()
        return configObjectMapper(objectMapper)
    }

    fun configObjectMapper(objectMapper: ObjectMapper): ObjectMapper {
        objectMapper.configure(JsonParser.Feature.IGNORE_UNDEFINED, true)
        objectMapper.configure(JsonGenerator.Feature.STRICT_DUPLICATE_DETECTION, true)
        objectMapper.configure(JsonParser.Feature.ALLOW_COMMENTS, true)
        objectMapper.configure(JsonParser.Feature.ALLOW_YAML_COMMENTS, true)
        objectMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true)

        objectMapper.setSerializationInclusion(JsonInclude.Include.ALWAYS)
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
        objectMapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false)
        objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false)
        objectMapper.dateFormat = SimpleDateFormat(DatePattern.NORM_DATETIME_PATTERN)
        val findModules = ObjectMapper.findModules()
        for (module in findModules) {
            if (module.javaClass.canonicalName.contains("JavaTimeModule")) continue
            objectMapper.registerModule(module)
            kInfo(module.javaClass.canonicalName + ":register")
        }
        val javaTimeModule = JavaTimeModule()
        javaTimeModule.addSerializer(
            LocalDateTime::class.java,
            LocalDateTimeSerializer(DatePattern.NORM_DATETIME_FORMATTER)
        )
        javaTimeModule.addSerializer(LocalDate::class.java, LocalDateSerializer(DatePattern.NORM_DATE_FORMATTER))
        javaTimeModule.addDeserializer(
            LocalDateTime::class.java,
            LocalDateTimeDeserializer2(DatePattern.NORM_DATETIME_FORMATTER)
        )
        javaTimeModule.addDeserializer(LocalDate::class.java, LocalDateDeserializer2(DatePattern.NORM_DATE_FORMATTER))


        objectMapper.registerModule(javaTimeModule)

        kInfo(javaTimeModule.javaClass.canonicalName + ":register")

        objectMapper.registerModule(JacksonModel2())

        return objectMapper
    }
}

class JacksonModel2 : SimpleModule() {
    init {
//        println("init")
        val value1 = object : StdDeserializer(Date::class.java) {
            override fun deserialize(parser: JsonParser?, ctxt: DeserializationContext?): Date? {
                parser ?: return null
                if (parser.currentToken == JsonToken.VALUE_NULL) return null
                if (parser.currentToken == JsonToken.VALUE_NUMBER_INT) return Date(parser.longValue)
                val toString = parser.valueAsString
                val toLocalDateTime = toString.toDateJdk7OrNull()
                return toLocalDateTime
            }
        }
        addDeserializer(Date::class.java, value1)
    }
}

fun main() {
    println(Date())
    println(LocalDateTime.now())
    val json =
        """{"id":1,"name":111,"time1":"2020-09-12 18:00:27","date1":"2020-09-12 18:00:27","date2":"2020-09-12"}"""
    val json2 = """{"date2":1599840000000,"date1":"2020-09-12T18:02:56.320","time1":1599904827153,"name":111,"id":1}"""
    val json3 = """{"date2":1599840000000,"date1":1599904827156,"time1":1599904827156,"name":111,"id":1}"""
    val json4 =
        """{"date2":1599840000000,"date1":"2020-09-12T18:02:56.320","time1":"2020-09-12T18:02:56.320","name":111,"id":1}"""
//    "2020-09-12 14:55:44"
    val toJsonToMap = TestJsonBigBean("sasa").toJsonToMap()
    val testBean2 = TestBean2(1, 111)
    val map = testBean2.toJsonToMap()!!
    val toJsonStr = JSONUtil.toJsonStr(testBean2)
    val toJsonStr1 = testBean2.toJsonStr()
    println(toJsonStr)
    println(toJsonStr1)
    val jsonToObject = toJsonStr.jsonToObject()
    val jsonToObject1 = toJsonStr1.jsonToObject()
    var jsonToObje3ct2 = json.jsonToObject()
    val jsonToObje1ct2 = json2.jsonToObject()
    val jsonToObject12 = json3.jsonToObject()
    val jsonToObject21 = json4.jsonToObject()
    println(jsonToObject)
}

internal data class TestJsonBigBean(var name: String, var list: List = listOf(TestBean2(1, 111)))