数据入库（优化，根据时间和矿id删除原本已有的，防止重复导入）

ruoyi-supplies/src/main/java/com/ruoyi/system/controller/ActSuppliesMaterialController.java

@@ -27,7 +27,6 @@ public class ActSuppliesMaterialController {
     public AjaxResult saveInfo(@RequestBody ActSuppliesMaterialInfo actSuppliesMaterialInfo){
         System.out.println(actSuppliesMaterialInfo);
         List<ActSuppliesMaterialDetails> materials = actSuppliesMaterialInfo.getMaterials();
-
         Boolean saved = actSuppliesMaterialService.save(materials);
         if (!saved) {
             return AjaxResult.error("插入失败，请重新尝试");

ruoyi-supplies/src/main/java/com/ruoyi/system/mapper/ActSuppliesMaterialMapper.java

@@ -13,5 +13,7 @@ import java.util.List;
 public interface ActSuppliesMaterialMapper {
     Boolean save(@Param("accList") List<ActSuppliesMaterialDetails> materials);
 
+    void delete(@Param("mineId") String mineId, @Param("dateColumn") String dateColumn);
+
     //void save(ActSuppliesMaterialInfo actSuppliesMaterialInfo);
 }

ruoyi-supplies/src/main/java/com/ruoyi/system/service/impl/ActSuppliesMaterialServiceImpl.java

@@ -23,6 +23,12 @@ public class ActSuppliesMaterialServiceImpl implements ActSuppliesMaterialServic
 
     @Override
     public Boolean save(List<ActSuppliesMaterialDetails> materials) {
+        //遍历循环，根据时间和矿id删除
+        materials.forEach(material->{
+            String mineId = material.getMineId();
+            String dateColumn = material.getDateColumn();
+            actSuppliesMaterialMapper.delete(mineId,dateColumn);
+        });
        return actSuppliesMaterialMapper.save(materials);
     }
 }

ruoyi-supplies/src/main/resources/mapper/system/ActSuppliesMaterialMapper.xml

@@ -31,7 +31,10 @@
             #{list.model}, #{list.mineName}, #{list.mineId}, #{list.oneLevel}, #{list.twoLevel}, #{list.dateColumn},#{list.sourceColumn})
         </foreach>
     </insert>
+    <delete id="delete">
+        delete from act_supplies_material_info
+        where mine_id = #{mineId} and date_column = #{dateColumn}
+    </delete>
 
 
-
- </mapper>
\ No newline at end of file
+</mapper>
\ No newline at end of file