优化向量查询，替换新模型

app/src/main/java/com/sw/inbound/objbox/FoodModule.kt

@@ -36,10 +36,6 @@ object FoodModule {
 
     private lateinit var module_mobile: Module
 
-    //    private lateinit var box: Box<Food>
-    private lateinit var embeddingsList: List<List<Float>>
-    private lateinit var labelsList: IntArray
-    private lateinit var classInfo: FoodClassInfo
     private val NO_MEAN_RGB = floatArrayOf(0.0f, 0.0f, 0.0f)
     private val NO_STD_RGB = floatArrayOf(1.0f, 1.0f, 1.0f)
 
@@ -135,9 +131,11 @@ object FoodModule {
 
         logInfo("queryFood向量：${floatArray.slice(0 until 50).toJsonString()}")
         val idScoreList = ObjectBox.query(floatArray, queryCount)
+        // 批量加载所有实体，一次DB操作替代循环单条查询
+        val foodMap = ObjectBox.getByIds(idScoreList.map { it.id }).associateBy { it.id }
         val nameScoreList = mutableListOf<IdNameScore>()
         idScoreList.forEach {
-            val name = ObjectBox.get(it.id)?.name ?: ""
+            val name = foodMap[it.id]?.name ?: ""
             nameScoreList.add(IdNameScore(id = it.id, name = name, score = it.score))
         }
         logInfo("queryFood数据：${nameScoreList.toJsonString()}")
@@ -203,10 +201,10 @@ object FoodModule {
             val labelsJson = AssetsTool.readAssetsFile(context, "data/labels.json")
             val classInfoJson = AssetsTool.readAssetsFile(context, "data/class_info.json")
 
-            embeddingsList =
+            val embeddingsList: List<List<Float>> =
                 Gson().fromJson(embeddingsJson, object : TypeToken<List<List<Float>>>() {}.type)
-            labelsList = Gson().fromJson(labelsJson, IntArray::class.java)
-            classInfo =
+            val labelsList: IntArray = Gson().fromJson(labelsJson, IntArray::class.java)
+            val classInfo: FoodClassInfo =
                 Gson().fromJson(classInfoJson, FoodClassInfo::class.java)
 
             val foodMap = classInfo.idx_to_class

app/src/main/java/com/sw/inbound/objbox/ObjectBox.kt

@@ -172,6 +172,12 @@ object ObjectBox {
         getBox<Food>()?.get(id)
     }
 
+    // 批量按ID加载，一次DB事务替代循环单条查询
+    suspend fun getByIds(ids: List<Long>): List<Food> = safeDbOp {
+        if (ids.isEmpty()) return@safeDbOp emptyList<Food>()
+        getBox<Food>()?.get(ids.toLongArray()) ?: emptyList<Food>()
+    } ?: emptyList()
+
     suspend fun put(entity: Food) = safeDbOp {
         getBox<Food>()?.put(entity)
     }