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移除自定义的Long序列化字符串类型规则

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新增LocalDateTime的序列化、反序列化规则
This commit is contained in:
hexiaowu 2021-03-14 18:56:06 +08:00
parent fe31d61de9
commit 4067087da6
4 changed files with 64 additions and 32 deletions
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20
src/main/java/cn/iocoder/dashboard/framework/jackson/config/JacksonConfig.java
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@ -1,12 +1,16 @@
package cn.iocoder.dashboard.framework.jackson.config;
import cn.iocoder.dashboard.framework.jackson.ser.LongSerializer;
import cn.iocoder.dashboard.framework.jackson.deser.LocalDateTimeDeserializer;
import cn.iocoder.dashboard.framework.jackson.ser.LocalDateTimeSerializer;
import cn.iocoder.dashboard.util.json.JsonUtils;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.time.LocalDateTime;
@Configuration
public class JacksonConfig {
@ -15,11 +19,15 @@ public class JacksonConfig {
public JsonUtils jsonUtils(ObjectMapper objectMapper) {
SimpleModule simpleModule = new SimpleModule();
/*
* 新增Long类型序列化规则，数值超过2^53-1，在JS会出现精度丢失问题，因此Long自动序列化为字符串类型
*/
simpleModule.addSerializer(Long.class,LongSerializer.getInstance())
.addSerializer(Long.TYPE,LongSerializer.getInstance());
objectMapper.registerModule(simpleModule);
* 1. 新增Long类型序列化规则，数值超过2^53-1，在JS会出现精度丢失问题，因此Long自动序列化为字符串类型
* 2. 新增LocalDateTime序列化、反序列化规则
*/
simpleModule.addSerializer(Long.class, ToStringSerializer.instance)
.addSerializer(Long.TYPE, ToStringSerializer.instance)
.addSerializer(LocalDateTime.class, LocalDateTimeSerializer.INSTANCE)
.addDeserializer(LocalDateTime.class, LocalDateTimeDeserializer.INSTANCE);
objectMapper.registerModules(simpleModule);
JsonUtils.init(objectMapper);
return new JsonUtils();

26
src/main/java/cn/iocoder/dashboard/framework/jackson/deser/LocalDateTimeDeserializer.java Normal file
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@ -0,0 +1,26 @@
package cn.iocoder.dashboard.framework.jackson.deser;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import java.io.IOException;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
/**
* LocalDateTime反序列化规则
* <p>
* 会将毫秒级时间戳反序列化为LocalDateTime
*/
public class LocalDateTimeDeserializer extends JsonDeserializer<LocalDateTime> {
public static final LocalDateTimeDeserializer INSTANCE = new LocalDateTimeDeserializer();
@Override
public LocalDateTime deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
return LocalDateTime.ofInstant(Instant.ofEpochMilli(p.getValueAsLong()), ZoneId.systemDefault());
}
}

24
src/main/java/cn/iocoder/dashboard/framework/jackson/ser/LocalDateTimeSerializer.java Normal file
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@ -0,0 +1,24 @@
package cn.iocoder.dashboard.framework.jackson.ser;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import java.io.IOException;
import java.time.LocalDateTime;
import java.time.ZoneId;
/**
* LocalDateTime序列化规则
* <p>
* 会将LocalDateTime序列化为毫秒级时间戳
*/
public class LocalDateTimeSerializer extends JsonSerializer<LocalDateTime> {
public static final LocalDateTimeSerializer INSTANCE = new LocalDateTimeSerializer();
@Override
public void serialize(LocalDateTime value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
gen.writeNumber(value.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
}
}

26
src/main/java/cn/iocoder/dashboard/framework/jackson/ser/LongSerializer.java
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@ -1,26 +0,0 @@
package cn.iocoder.dashboard.framework.jackson.ser;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import java.io.IOException;
/**
* Long类型序列化规则
* <p>
* 数值超过2^53-1，在JS会出现精度丢失问题，因此Long自动序列化为字符串类型
*/
public class LongSerializer extends JsonSerializer<Long> {
private static final LongSerializer LONG_SERIALIZER = new LongSerializer();
@Override
public void serialize(Long value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
gen.writeString(value.toString());
}
public static LongSerializer getInstance() {
return LONG_SERIALIZER;
}
}