增加状态更新接口客户的状态可以是线索高一项第1项客户

src/main/java/com/rj/service/impl/CustomerManagementServiceImpl.java

@@ -1,9 +1,11 @@
 package com.rj.service.impl;
 
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.rj.config.MinIOConfig;
 import com.rj.dto.CustomerPhotoPreviewResult;
 import com.rj.dto.CustomerPhotoUploadResult;
+import com.rj.dto.CustomerStageUpdateResult;
 import com.rj.entity.CustomerManagement;
 import com.rj.mapper.CustomerManagementMapper;
 import com.rj.service.ICustomerManagementService;
@@ -15,6 +17,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.InputStream;
+import java.time.LocalDateTime;
 import java.util.UUID;
 
 /**
@@ -65,6 +68,32 @@ public class CustomerManagementServiceImpl extends ServiceImpl<CustomerManagemen
         }
     }
 
+    @Override
+    public CustomerStageUpdateResult updateCustomerStage(String id, String stage) {
+        try {
+            if (id == null || id.trim().isEmpty()) {
+                return CustomerStageUpdateResult.badRequest("客户ID不能为空");
+            }
+            String idTrim = id.trim();
+            if (getById(idTrim) == null) {
+                return CustomerStageUpdateResult.badRequest("客户不存在");
+            }
+            LocalDateTime now = LocalDateTime.now();
+            boolean updated = update(
+                    new LambdaUpdateWrapper<CustomerManagement>()
+                            .eq(CustomerManagement::getId, idTrim)
+                            .set(CustomerManagement::getStage, stage)
+                            .set(CustomerManagement::getUpdateTime, now));
+            if (!updated) {
+                return CustomerStageUpdateResult.badRequest("阶段更新失败");
+            }
+            return CustomerStageUpdateResult.ok(getById(idTrim));
+        } catch (Exception e) {
+            log.error("客户阶段更新失败: {}", e.getMessage(), e);
+            return CustomerStageUpdateResult.serverError("阶段更新异常：" + e.getMessage());
+        }
+    }
+
     @Override
     public CustomerPhotoPreviewResult openCustomerPhotoPreview(String url, String id, String photoType) {
         String photoUrl = null;