1.修复创建多个向量库2.查看试卷没有用户答案3.向量化自动出题

src/main/java/top/tqx/demo_1/service/AsyncExamService.java

@@ -77,6 +77,26 @@ public class AsyncExamService {
                     updateFileExamStatus(fileId, EXAM_STATUS_GENERATED, "警告：未生成任何题目。可能原因：文档内容为空、文档内容无法提取题目、或文档格式不支持。source_chunks_used=" + response.getSourceChunksUsed());
                 } else {
                     String processMessage = "生成成功，共" + response.getTotal() + "道题";
+                    
+                    // 追加题型统计信息
+                    if (response.getRequestedTypes() != null || response.getActualTypes() != null) {
+                        processMessage += "\n\n【题型统计】";
+                        if (response.getRequestedTypes() != null) {
+                            processMessage += "\n请求题型: " + formatQuestionTypes(response.getRequestedTypes());
+                        }
+                        if (response.getActualTypes() != null) {
+                            processMessage += "\n实际生成: " + formatQuestionTypes(response.getActualTypes());
+                        }
+                    }
+                    
+                    // 追加短缺警告
+                    if (response.getWarnings() != null && !response.getWarnings().isEmpty()) {
+                        processMessage += "\n\n【短缺警告】";
+                        for (String warning : response.getWarnings()) {
+                            processMessage += "\n- " + warning;
+                        }
+                    }
+                    
                     log.info("response.getAiAnalysis() = {}", response.getAiAnalysis());
                     log.info("response.getAiAnalysis() == null? {}", response.getAiAnalysis() == null);
                     if (response.getAiAnalysis() != null) {
@@ -214,4 +234,32 @@ public class AsyncExamService {
             throw new RuntimeException("更新文件状态失败", e);
         }
     }
+
+    /**
+     * 格式化题型统计信息
+     */
+    private String formatQuestionTypes(java.util.Map<String, Integer> types) {
+        if (types == null || types.isEmpty()) {
+            return "{}";
+        }
+        StringBuilder sb = new StringBuilder("{");
+        java.util.Map<String, String> typeNames = new java.util.HashMap<>();
+        typeNames.put("single_choice", "单选题");
+        typeNames.put("multiple_choice", "多选题");
+        typeNames.put("true_false", "判断题");
+        typeNames.put("fill_blank", "填空题");
+        typeNames.put("subjective", "主观题");
+        
+        boolean first = true;
+        for (java.util.Map.Entry<String, Integer> entry : types.entrySet()) {
+            if (!first) {
+                sb.append(", ");
+            }
+            String typeName = typeNames.getOrDefault(entry.getKey(), entry.getKey());
+            sb.append(typeName).append(": ").append(entry.getValue()).append("道");
+            first = false;
+        }
+        sb.append("}");
+        return sb.toString();
+    }
 }