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feat：【框架】TimestampLocalDateTimeSerializer 优化下代码格式

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YunaiV
2025-12-20 15:45:11 +08:00
parent aeb862e14c
commit 018be292d9
1 changed files with 30 additions and 17 deletions
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47
yudao-framework/yudao-common/src/main/java/cn/iocoder/yudao/framework/common/util/json/databind/TimestampLocalDateTimeSerializer.java
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@@ -1,11 +1,14 @@
package cn.iocoder.yudao.framework.common.util.json.databind;
import cn.hutool.core.util.ObjUtil;
import cn.hutool.core.util.ReflectUtil;
import cn.hutool.core.util.StrUtil;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import lombok.extern.slf4j.Slf4j;
import java.io.IOException;
import java.lang.reflect.Field;
@@ -21,28 +24,13 @@ import java.util.concurrent.ConcurrentHashMap;
*
* @author 老五
*/
@Slf4j
public class TimestampLocalDateTimeSerializer extends JsonSerializer<LocalDateTime> {
public static final TimestampLocalDateTimeSerializer INSTANCE = new TimestampLocalDateTimeSerializer();
private static final Map<Class<?>, Map<String, Field>> FIELD_CACHE = new ConcurrentHashMap<>();
private Map<String, Field> buildFieldMap(Class<?> clazz) {
Map<String, Field> fieldMap = new HashMap<>();
for (Field field : ReflectUtil.getFields(clazz)) {
String fieldName = field.getName();
JsonProperty jsonProperty = field.getAnnotation(JsonProperty.class);
if (jsonProperty != null) {
String value = jsonProperty.value();
if (!value.isEmpty() && !"\u0000".equals(value)) {
fieldName = value;
}
}
fieldMap.put(fieldName, field);
}
return fieldMap;
}
@Override
public void serialize(LocalDateTime value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
// 情况一：有 JsonFormat 自定义注解，则使用它。https://github.com/YunaiV/ruoyi-vue-pro/pull/1019
@@ -53,13 +41,16 @@ public class TimestampLocalDateTimeSerializer extends JsonSerializer<LocalDateTi
Class<?> clazz = currentValue.getClass();
Map<String, Field> fieldMap = FIELD_CACHE.computeIfAbsent(clazz, this::buildFieldMap);
Field field = fieldMap.get(fieldName);
// 进一步修复：https://gitee.com/zhijiantianya/ruoyi-vue-pro/pulls/1480
if (field != null && field.isAnnotationPresent(JsonFormat.class)) {
JsonFormat jsonFormat = field.getAnnotation(JsonFormat.class);
try {
DateTimeFormatter formatter = DateTimeFormatter.ofPattern(jsonFormat.pattern());
gen.writeString(formatter.format(value));
return;
} catch (Exception ignored) {
} catch (Exception ex) {
log.warn("[serialize][({}#{}) 使用 JsonFormat pattern 失败，尝试使用默认的 Long 时间戳]",
clazz.getName(), fieldName, ex);
}
}
}
@@ -69,4 +60,26 @@ public class TimestampLocalDateTimeSerializer extends JsonSerializer<LocalDateTi
gen.writeNumber(value.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
}
/**
* 构建字段映射（缓存）
*
* @param clazz 类
* @return 字段映射
*/
private Map<String, Field> buildFieldMap(Class<?> clazz) {
Map<String, Field> fieldMap = new HashMap<>();
for (Field field : ReflectUtil.getFields(clazz)) {
String fieldName = field.getName();
JsonProperty jsonProperty = field.getAnnotation(JsonProperty.class);
if (jsonProperty != null) {
String value = jsonProperty.value();
if (StrUtil.isNotEmpty(value) && ObjUtil.notEqual("\u0000", value)) {
fieldName = value;
}
}
fieldMap.put(fieldName, field);
}
return fieldMap;
}
}