fix: 修复xls预览内容为空问题，修复批量创建索引无效问题

chat-client/src/views/datasets/components/DocumentList.vue

@@ -346,9 +346,11 @@
           @error="errorHandler"
         />
 
+        <!-- Excel 文件预览 (支持 .xls 和 .xlsx) -->
         <vue-office-excel
-          v-if="previewFileType == 'xlsx' || previewFileType == 'xls' || previewFileType == 'csv'"
+          v-if="['xls', 'xlsx', 'csv'].includes(previewFileType)"
           :src="previewFileUrl"
+          :options="excelPreviewOptions"
           style="height: 100vh;"
           @rendered="renderedHandler"
           @error="errorHandler"
@@ -720,6 +722,19 @@ const previewFileUrl = ref('')
 // 添加文本内容预览状态
 const previewTextContent = ref('')
 const previewMarkdownContent = ref('')
+// 保存当前预览的文件信息（用于在预览中下载）
+const currentPreviewFile = ref<FileItem | null>(null)
+
+// Excel 预览选项配置
+const excelPreviewOptions = ref({
+  xls: false,       // 预览xlsx文件设为false；预览xls文件设为true
+  minColLength: 0,  // excel最少渲染多少列
+  minRowLength: 0,  // excel最少渲染多少行
+  widthOffset: 10,  // 列宽度偏移
+  heightOffset: 10, // 行高度偏移
+  beforeTransformData: (workbookData: any) => { return workbookData },
+  transformData: (workbookData: any) => { return workbookData }
+})
 
 // 选择变化处理
 const handleSelectionChange = (selection: FileItem[]) => {
@@ -858,6 +873,9 @@ if (!newVal) {
   previewMarkdownContent.value = ''
   previewFileUrl.value = ''
   previewFileType.value = ''
+  currentPreviewFile.value = null
+  // 重置 Excel 预览选项
+  excelPreviewOptions.value.xls = false
 }
 })
 
@@ -916,6 +934,13 @@ ElNotification({
 })
 }
 
+// 从预览中下载文件
+const handleDownloadFromPreview = async () => {
+  if (currentPreviewFile.value) {
+    await handleDownload(currentPreviewFile.value)
+  }
+}
+
 //文件下载
 const handleDownload = async (row: FileItem) => {
 try {
@@ -981,6 +1006,8 @@ const handlePreview = async (row: FileItem) => {
   previewDrawerVisible.value = true
   previewLoading.value = true
   
+  // 保存当前预览的文件信息
+  currentPreviewFile.value = row
   previewFileType.value = row.fileType;
 
   try {
@@ -999,7 +1026,6 @@ const handlePreview = async (row: FileItem) => {
                   gfm: true
               })
 
-
               previewMarkdownContent.value = marked.parse(content) as string
           }
       } else {
@@ -1012,6 +1038,13 @@ const handlePreview = async (row: FileItem) => {
               previewFileUrl.value = await fetchPreviewUrl(parseInt(row.id))
               console.log("previewFileUrl (from API)", previewFileUrl.value)
           }
+          
+          // 针对 Excel 文件设置预览选项
+          if (['xls', 'xlsx', 'csv'].includes(row.fileType.toLowerCase())) {
+              // 根据文件类型设置 xls 选项
+              excelPreviewOptions.value.xls = (row.fileType.toLowerCase() === 'xls')
+              console.log(`Excel 预览模式: ${row.fileType.toUpperCase()}, XLS 模式: ${excelPreviewOptions.value.xls}`)
+          }
       }
     segmentdocId.value = row.difyDocId
     const resp = await getSegmentList({
@@ -2562,6 +2595,18 @@ transform: scale(0.9) translateY(-5px);
 
 
 
+// Excel 文件预览样式优化
+.excel-preview-container {
+  height: 100%;
+  background: #fafbfc;
+  
+  .vue-office-excel {
+    border-radius: 8px;
+    overflow: hidden;
+    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
+  }
+}
+
 // 文件替换信息样式
 .replace-info {
   margin-bottom: 24px;

chat-server/src/main/java/com/bjtds/brichat/service/impl/EsTDatasetFilesServiceImpl.java

@@ -75,9 +75,11 @@ public class EsTDatasetFilesServiceImpl implements EsTDatasetFilesService {
 
                     )
             );
-            System.out.println("索引创建成功: " + DatasetId);
+            log.info("索引创建成功: 知识库id{}", DatasetId);
+            //System.out.println("索引创建成功:  " + DatasetId);
         } else {
-            System.out.println("索引已存在: " + DatasetId);
+            log.info("索引已存在:  知识库id{}", DatasetId);
+            //System.out.println("索引已存在: " + DatasetId);
         }
     }
 
@@ -124,7 +126,6 @@ public class EsTDatasetFilesServiceImpl implements EsTDatasetFilesService {
                                     doc.getDifyStoragePath(),
                                     doc.getSourceUrl(),
                                     doc.getIsDeep(),
-
                                     true
 
                             );
@@ -133,6 +134,7 @@ public class EsTDatasetFilesServiceImpl implements EsTDatasetFilesService {
                                         .id(subDoc.getId().toString())
                                         .document(subDoc)
                                 );
+                                log.info("异步添加文档分片到索引 fileId={} 索引构建成功  docName={}", subDoc.getId(), subDoc.getName());
                         } catch (IOException e) {
                             throw new RuntimeException("分片索引失败", e);
                         }
@@ -174,7 +176,7 @@ public class EsTDatasetFilesServiceImpl implements EsTDatasetFilesService {
                             .id(singleDoc.getId().toString())
                             .document(singleDoc)
                     );
-
+                    log.info("Single异步添加文档分片到索引 fileId={} 索引构建成功  docName={}", singleDoc.getId(), singleDoc.getName());
             }
 
             for (Future<?> f : futures) {
@@ -185,8 +187,8 @@ public class EsTDatasetFilesServiceImpl implements EsTDatasetFilesService {
                 }
             }
 
-            System.out.println("文档索引完成: " + doc.getName());
+           // System.out.println("文档索引完成: " + doc.getName());
-
+            log.info("addDoc文档索引完成: 知识库id={}  docName={}", doc.getDifyDatasetId(), doc.getName());
         } finally {
             executor.shutdown();
         }

chat-server/src/main/java/com/bjtds/brichat/util/EsTDatasetFilesImporter.java

@@ -4,6 +4,7 @@ import com.bjtds.brichat.entity.dataset.TDatasetFiles;
 import com.bjtds.brichat.service.DatasetFilesService;
 import com.bjtds.brichat.service.EsTDatasetFilesService;
 import io.swagger.models.auth.In;
+import lombok.extern.slf4j.Slf4j;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -16,7 +17,7 @@ import org.springframework.stereotype.Service;
 import java.io.File;
 import java.io.IOException;
 import java.util.List;
-
+@Slf4j
 @Service
 public class EsTDatasetFilesImporter {
     @Autowired
@@ -24,7 +25,7 @@ public class EsTDatasetFilesImporter {
 
     @Autowired
     private DatasetFilesService datasetFilesService;
-    private static final Logger log = LoggerFactory.getLogger(EsTDatasetFilesImporter.class);
+   // private static final Logger log = LoggerFactory.getLogger(EsTDatasetFilesImporter.class);
 
     @Autowired
     private StringRedisTemplate redisTemplate;
@@ -62,15 +63,15 @@ public class EsTDatasetFilesImporter {
             if (document == null) continue;
             String filePath = document.getDifyStoragePath();
             if (filePath == null) {
-                log.debug("documentId=" + document.getId() + " 不存在difyStoragePath，跳过");
+                log.info("documentId=" + document.getId() + " 不存在difyStoragePath，跳过");
                 continue;
             }
             File file = new File(filePath);
             if (!file.exists()) {
-                log.debug(file.getAbsolutePath() + " 不存在，跳过");
+                log.info(file.getAbsolutePath() + " 不存在，跳过");
                 continue;
             }
-            if(document.getIsEs()){
+            if(Boolean.TRUE.equals(document.getIsEs())){
                 log.info("documentId=" + document.getId() + " 是ES索引文件，跳过");
                 continue;
             }
@@ -82,9 +83,9 @@ public class EsTDatasetFilesImporter {
                 redisTemplate.opsForValue().set("import:task:" + taskId + ":finished", String.valueOf(finished));
                 document.setIsEs(true);
                 datasetFilesService.updateFile(document);
-                log.debug("documentId=" + document.getId() + " 索引构建成功");
+                log.info("documentId=" + document.getId() + " 索引构建成功");
             } catch (Exception e) {
-                log.debug("documentId=" + document.getId() + " 索引构建失败: " + e.getMessage());
+                log.info("documentId=" + document.getId() + " 索引构建失败: " + e.getMessage());
             }
         }
         redisTemplate.opsForValue().set("import:task:" + taskId + ":status", "done");