fix(ocr批量入库)

1、新增ocr识别批量入库功能

src/main/java/com/accounting/controller/BillController.java

@@ -2,6 +2,7 @@ package com.accounting.controller;
 
 import com.accounting.dto.BillRequest;
 import com.accounting.dto.BillResponse;
+import com.accounting.dto.BatchBillRequest;
 import com.accounting.entity.User;
 import com.accounting.mapper.UserMapper;
 import com.accounting.service.BillService;
@@ -37,6 +38,14 @@ public class BillController {
         return ResponseEntity.ok(response);
     }
     
+    @Operation(summary = "批量创建账单")
+    @PostMapping("/batch")
+    public ResponseEntity<List<BillResponse>> createBills(@Valid @RequestBody BatchBillRequest request, Authentication authentication) {
+        Long userId = getUserId(authentication);
+        List<BillResponse> responses = billService.createBills(request, userId);
+        return ResponseEntity.ok(responses);
+    }
+    
     @Operation(summary = "更新账单")
     @PutMapping("/{id}")
     public ResponseEntity<BillResponse> updateBill(@PathVariable Long id, @Valid @RequestBody BillRequest request, Authentication authentication) {

src/main/java/com/accounting/dto/BatchBillRequest.java

@@ -0,0 +1,19 @@
+package com.accounting.dto;
+
+import jakarta.validation.Valid;
+import jakarta.validation.constraints.NotEmpty;
+import java.util.List;
+
+public class BatchBillRequest {
+    @NotEmpty(message = "账单列表不能为空")
+    @Valid
+    private List<BillRequest> bills;
+
+    public List<BillRequest> getBills() {
+        return bills;
+    }
+
+    public void setBills(List<BillRequest> bills) {
+        this.bills = bills;
+    }
+}

src/main/java/com/accounting/service/BillService.java

@@ -2,6 +2,7 @@ package com.accounting.service;
 
 import com.accounting.dto.BillRequest;
 import com.accounting.dto.BillResponse;
+import com.accounting.dto.BatchBillRequest;
 import com.accounting.entity.Account;
 import com.accounting.entity.Bill;
 import com.accounting.entity.Category;
@@ -14,6 +15,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.time.LocalDate;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -56,6 +58,39 @@ public class BillService {
         return convertToResponse(bill, category);
     }
     
+    @Transactional
+    public List<BillResponse> createBills(BatchBillRequest request, Long userId) {
+        List<BillResponse> responses = new ArrayList<>();
+        
+        // 获取或创建账户
+        Account account = accountService.getOrCreateAccount(userId);
+        
+        for (BillRequest billRequest : request.getBills()) {
+            // 验证分类是否存在
+            Category category = categoryMapper.selectById(billRequest.getCategoryId());
+            if (category == null) {
+                throw new RuntimeException("分类不存在，分类ID: " + billRequest.getCategoryId());
+            }
+            
+            // 创建账单
+            Bill bill = new Bill();
+            bill.setUserId(userId);
+            bill.setAccountId(account.getId()); // 自动关联账户
+            bill.setCategoryId(billRequest.getCategoryId());
+            bill.setAmount(billRequest.getAmount());
+            bill.setDescription(billRequest.getDescription());
+            bill.setBillDate(billRequest.getBillDate() != null ? billRequest.getBillDate() : LocalDate.now());
+            bill.setImageUrl(billRequest.getImageUrl());
+            bill.setType(billRequest.getType()); // 设置账单类型
+            
+            billMapper.insert(bill);
+            
+            responses.add(convertToResponse(bill, category));
+        }
+        
+        return responses;
+    }
+    
     @Transactional
     public BillResponse updateBill(Long id, BillRequest request, Long userId) {
         // 验证账单是否存在且属于当前用户