09051914:对这个资产展示使用线程池的方法去做,第三次优化代码

muyu-source-server/src/main/java/com/muyu/source/service/Impl/DataValueServiceImpl.java

@@ -219,17 +219,29 @@ public class DataValueServiceImpl extends ServiceImpl<DataValueMapper, DataValue
                 }
             }
 
+            // Collect all rows first
+            List<Map<Integer, Object>> rows = new ArrayList<>();
+            while (resultSet.next()) {
+                Map<Integer, Object> row = new HashMap<>();
+                for (int i = 1; i <= columnCount; i++) {
+                    row.put(i, resultSet.getObject(i));
+                }
+                rows.add(row);
+            }
+
             List<Future<DataValue>> futures = new ArrayList<>();
 
-            while (resultSet.next()) {
+            // Process each row in separate threads
+            for (Map<Integer, Object> row : rows) {
                 for (int i = 1; i <= columnCount; i++) {
                     final int index = i;
+                    final Object value = row.get(index);
                     futures.add(executorService.submit(() -> {
                         String columnTypeName = metaData.getColumnTypeName(index);
                         return DataValue.builder()
                                 .key(metaData.getColumnName(index))
                                 .label(columnRemarks.getOrDefault(index, ""))
-                                .value(resultSet.getObject(index, DataType.convertType(columnTypeName)))
+                                .value(value)
                                 .type(DataType.convertTypeString(columnTypeName))
                                 .build();
                     }));