BJ_ZTEITS-Developers / parking-cloud-yudao

Authored by 芋道源码 2021-03-14 19:31:55 +0800

Committed by Gitee 2021-03-14 19:31:55 +0800

Merge pull request !17 from 贺小五/feature/serialized

Showing 3 changed files with 68 additions and 1 deletions

src/main/java/cn/iocoder/dashboard/framework/jackson/config/JacksonConfig.java

1	1	package cn.iocoder.dashboard.framework.jackson.config;
2	2
	3	+import cn.iocoder.dashboard.framework.jackson.deser.LocalDateTimeDeserializer;
	4	+import cn.iocoder.dashboard.framework.jackson.ser.LocalDateTimeSerializer;
3	5	import cn.iocoder.dashboard.util.json.JsonUtils;
4	6	import com.fasterxml.jackson.databind.ObjectMapper;
	7	+import com.fasterxml.jackson.databind.module.SimpleModule;
	8	+import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
5	9	import org.springframework.context.annotation.Bean;
6	10	import org.springframework.context.annotation.Configuration;
7	11
	12	+import java.time.LocalDateTime;
	13	+
8	14	@Configuration
9	15	public class JacksonConfig {
10	16
11	17	@Bean
12	18	@SuppressWarnings("InstantiationOfUtilityClass")
13	19	public JsonUtils jsonUtils(ObjectMapper objectMapper) {
	20	+ SimpleModule simpleModule = new SimpleModule();
	21	+ /*
	22	+ * 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
	23	+ * 2. 新增LocalDateTime序列化、反序列化规则
	24	+ */
	25	+ simpleModule.addSerializer(Long.class, ToStringSerializer.instance)
	26	+ .addSerializer(Long.TYPE, ToStringSerializer.instance)
	27	+ .addSerializer(LocalDateTime.class, LocalDateTimeSerializer.INSTANCE)
	28	+ .addDeserializer(LocalDateTime.class, LocalDateTimeDeserializer.INSTANCE);
	29	+
	30	+ objectMapper.registerModules(simpleModule);
	31	+
14	32	JsonUtils.init(objectMapper);
15	33	return new JsonUtils();
16	34	}
17		-
18	35	}
...	...

src/main/java/cn/iocoder/dashboard/framework/jackson/deser/LocalDateTimeDeserializer.java 0 → 100644

	1	+package cn.iocoder.dashboard.framework.jackson.deser;
	2	+
	3	+import com.fasterxml.jackson.core.JsonParser;
	4	+import com.fasterxml.jackson.core.JsonProcessingException;
	5	+import com.fasterxml.jackson.databind.DeserializationContext;
	6	+import com.fasterxml.jackson.databind.JsonDeserializer;
	7	+
	8	+import java.io.IOException;
	9	+import java.time.Instant;
	10	+import java.time.LocalDateTime;
	11	+import java.time.ZoneId;
	12	+
	13	+/**
	14	+ * LocalDateTime反序列化规则
	15	+ * <p>
	16	+ * 会将毫秒级时间戳反序列化为LocalDateTime
	17	+ */
	18	+public class LocalDateTimeDeserializer extends JsonDeserializer<LocalDateTime> {
	19	+
	20	+ public static final LocalDateTimeDeserializer INSTANCE = new LocalDateTimeDeserializer();
	21	+
	22	+ @Override
	23	+ public LocalDateTime deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
	24	+ return LocalDateTime.ofInstant(Instant.ofEpochMilli(p.getValueAsLong()), ZoneId.systemDefault());
	25	+ }
	26	+}
...	...

src/main/java/cn/iocoder/dashboard/framework/jackson/ser/LocalDateTimeSerializer.java 0 → 100644

	1	+package cn.iocoder.dashboard.framework.jackson.ser;
	2	+
	3	+import com.fasterxml.jackson.core.JsonGenerator;
	4	+import com.fasterxml.jackson.databind.JsonSerializer;
	5	+import com.fasterxml.jackson.databind.SerializerProvider;
	6	+
	7	+import java.io.IOException;
	8	+import java.time.LocalDateTime;
	9	+import java.time.ZoneId;
	10	+
	11	+/**
	12	+ * LocalDateTime序列化规则
	13	+ * <p>
	14	+ * 会将LocalDateTime序列化为毫秒级时间戳
	15	+ */
	16	+public class LocalDateTimeSerializer extends JsonSerializer<LocalDateTime> {
	17	+
	18	+ public static final LocalDateTimeSerializer INSTANCE = new LocalDateTimeSerializer();
	19	+
	20	+ @Override
	21	+ public void serialize(LocalDateTime value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
	22	+ gen.writeNumber(value.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
	23	+ }
	24	+}
...	...