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fix 修复 翻译模块 无法翻译实体属性值为 Null 的字段的问题

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疯狂的狮子Li
2023-02-03 00:39:15 +08:00
parent 0d755d2266
commit 5cce09b5c2
6 changed files with 57 additions and 8 deletions
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7
ruoyi-common/ruoyi-common-translation/src/main/java/com/ruoyi/common/translation/config/TranslationConfig.java
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@ -3,6 +3,7 @@ package com.ruoyi.common.translation.config;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.ruoyi.common.translation.annotation.TranslationType;
import com.ruoyi.common.translation.core.TranslationInterface;
import com.ruoyi.common.translation.core.handler.TranslationBeanSerializerModifier;
import com.ruoyi.common.translation.core.handler.TranslationHandler;
import jakarta.annotation.PostConstruct;
import lombok.extern.slf4j.Slf4j;
@ -40,8 +41,10 @@ public class TranslationConfig {
}
}
TranslationHandler.TRANSLATION_MAPPER.putAll(map);
// todo null值处理
// objectMapper.getSerializerProvider().setNullValueSerializer();
// 设置 Bean 序列化修改器
objectMapper.setSerializerFactory(
objectMapper.getSerializerFactory()
.withSerializerModifier(new TranslationBeanSerializerModifier()));
}
}

29
ruoyi-common/ruoyi-common-translation/src/main/java/com/ruoyi/common/translation/core/handler/TranslationBeanSerializerModifier.java Normal file
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@ -0,0 +1,29 @@
package com.ruoyi.common.translation.core.handler;
import com.fasterxml.jackson.databind.BeanDescription;
import com.fasterxml.jackson.databind.SerializationConfig;
import com.fasterxml.jackson.databind.ser.BeanPropertyWriter;
import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;
import java.util.List;
/**
* Bean 序列化修改器 解决 Null 被单独处理问题
*
* @author Lion Li
*/
public class TranslationBeanSerializerModifier extends BeanSerializerModifier {
@Override
public List<BeanPropertyWriter> changeProperties(SerializationConfig config, BeanDescription beanDesc,
List<BeanPropertyWriter> beanProperties) {
for (BeanPropertyWriter writer : beanProperties) {
// 如果序列化器为 TranslationHandler 的话 将 Null 值也交给他处理
if (writer.getSerializer() instanceof TranslationHandler serializer) {
writer.assignNullSerializer(serializer);
}
}
return beanProperties;
}
}

9
ruoyi-common/ruoyi-common-translation/src/main/java/com/ruoyi/common/translation/core/handler/TranslationHandler.java
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@ -41,10 +41,15 @@ public class TranslationHandler extends JsonSerializer<Object> implements Contex
if (StringUtils.isNotBlank(translation.mapper())) {
value = ReflectUtils.invokeGetter(gen.getCurrentValue(), translation.mapper());
}
// 如果为 null 直接写出
if (ObjectUtil.isNull(value)) {
gen.writeNull();
return;
}
String result = trans.translation(value, translation.other());
gen.writeString(StringUtils.isNotBlank(result) ? result : value.toString());
gen.writeString(result);
} else {
gen.writeString(value.toString());
gen.writeObject(value);
}
}