update 优化 翻译模块 增加逻辑注释和相关警告日志

ruoyi-common/ruoyi-common-translation/src/main/java/org/dromara/common/translation/core/TranslationInterface.java

@@ -4,6 +4,8 @@ import cn.hutool.core.convert.Convert;
 import org.dromara.common.core.utils.StreamUtils;
 import org.dromara.common.core.utils.StringUtils;
 import org.dromara.common.translation.annotation.TranslationType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.Arrays;
 import java.util.Collection;
@@ -21,6 +23,8 @@ import java.util.function.Function;
  */
 public interface TranslationInterface<T> {
 
+    Logger log = LoggerFactory.getLogger(TranslationInterface.class);
+
     /**
      * 按翻译键执行转换。
      *
@@ -38,6 +42,9 @@ public interface TranslationInterface<T> {
      * @return 翻译结果映射
      */
     default Map<Object, T> translationBatch(Set<Object> keys, String other) {
+        TranslationType annotation = this.getClass().getAnnotation(TranslationType.class);
+        String type = annotation != null ? annotation.type() : this.getClass().getSimpleName();
+        log.warn("翻译类型 [{}] 未覆盖 translationBatch 方法，已退化为逐条查询，建议实现批量查询以提升性能", type);
         Map<Object, T> result = new LinkedHashMap<>(keys.size());
         for (Object key : keys) {
             result.put(key, translation(key, other));

ruoyi-common/ruoyi-common-translation/src/main/java/org/dromara/common/translation/core/handler/TranslationJsonFieldProcessor.java

@@ -88,7 +88,7 @@ public class TranslationJsonFieldProcessor implements JsonFieldProcessor {
         }
         Object sourceValue = resolveSourceValue(fieldContext, translation);
         if (sourceValue == null) {
-            return null;
+            return value;
         }
         TranslationBatchKey batchKey = new TranslationBatchKey(translation.type(), translation.other());
         Map<TranslationBatchKey, Map<Object, Object>> results = context.getAttribute(ATTR_RESULTS);