重构部分功能模块

fill-manager/src/main/java/com/mortals/xhx/module/matter/service/impl/MatterDatumServiceImpl.java

@@ -143,7 +143,7 @@ public class MatterDatumServiceImpl extends AbstractCRUDServiceImpl<MatterDatumD
         //生成样表预览图片
         String rootPath = this.filePath.endsWith("/") ? this.filePath : this.filePath + "/";
         String samplePath = rootPath + entity.getSamplePath();
-        String prePath = "/preview/";
+        String prePath = "file/preview/";
         String filePath = rootPath + prePath;
         File pathDir = new File(filePath);
         if (!pathDir.exists()) {