重构：camera_code生成逻辑抽取为CameraCodeUtil工具类

将StreamProxyServiceImpl和AiConfigServiceImpl中重复的URL解析+
camera_code生成代码统一到CameraCodeUtil.generate()，消除重复代码。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiConfigServiceImpl.java

@@ -15,9 +15,9 @@ import com.genersoft.iot.vmp.aiot.dao.AiRoiMapper;
 import com.genersoft.iot.vmp.aiot.service.IAiConfigService;
 import com.genersoft.iot.vmp.aiot.service.IAiConfigSnapshotService;
 import com.genersoft.iot.vmp.aiot.service.IAiRedisConfigService;
+import com.genersoft.iot.vmp.aiot.util.CameraCodeUtil;
 import com.genersoft.iot.vmp.streamProxy.bean.StreamProxy;
 import com.genersoft.iot.vmp.streamProxy.dao.StreamProxyMapper;
-import java.util.UUID;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Lazy;
@@ -104,7 +104,7 @@ public class AiConfigServiceImpl implements IAiConfigService {
             }
             int backfilled = 0;
             for (StreamProxy proxy : nullCodeProxies) {
-                String cameraCode = generateCameraCodeFromUrl(proxy.getSrcUrl());
+                String cameraCode = CameraCodeUtil.generate(proxy.getSrcUrl());
                 streamProxyMapper.updateCameraCode(proxy.getId(), cameraCode);
                 backfilled++;
                 log.info("[AiConfig] 回填 camera_code: id={}, app={}, stream={} → {}",
@@ -116,34 +116,6 @@ public class AiConfigServiceImpl implements IAiConfigService {
         }
     }
 
-    /**
-     * 从 RTSP URL 中提取 IP/Host，生成可读的 camera_code
-     * 格式：cam_{host简写}_{4位随机}
-     * 例：rtsp://admin:pwd@192.168.1.100:554/stream → cam_192_168_1_100_a3f1
-     */
-    private String generateCameraCodeFromUrl(String srcUrl) {
-        String hostPart = "unknown";
-        if (srcUrl != null && !srcUrl.isEmpty()) {
-            try {
-                String urlBody = srcUrl;
-                int schemeEnd = urlBody.indexOf("://");
-                if (schemeEnd >= 0) {
-                    urlBody = urlBody.substring(schemeEnd + 3);
-                }
-                int atIndex = urlBody.indexOf('@');
-                if (atIndex >= 0) {
-                    urlBody = urlBody.substring(atIndex + 1);
-                }
-                String host = urlBody.split("[:/]")[0];
-                hostPart = host.replace(".", "_");
-            } catch (Exception e) {
-                hostPart = "unknown";
-            }
-        }
-        String suffix = UUID.randomUUID().toString().replace("-", "").substring(0, 4);
-        return "cam_" + hostPart + "_" + suffix;
-    }
-
     /**
      * 修复 ROI 表中仍使用 app/stream 格式的 camera_id，替换为对应的 camera_code
      * 例如: camera_id="live/camera01" → camera_id="cam_a1b2c3d4e5f6"

src/main/java/com/genersoft/iot/vmp/aiot/util/CameraCodeUtil.java

@@ -0,0 +1,37 @@
+package com.genersoft.iot.vmp.aiot.util;
+
+import java.util.UUID;
+
+/**
+ * 摄像头编码生成工具类
+ * 从 RTSP URL 中提取 IP/Host 特征，生成可读的 camera_code
+ * 格式：cam_{host下划线分隔}_{4位随机}
+ * 例：rtsp://admin:pwd@192.168.1.100:554/stream → cam_192_168_1_100_a3f1
+ */
+public class CameraCodeUtil {
+
+    private CameraCodeUtil() {}
+
+    public static String generate(String srcUrl) {
+        String hostPart = "unknown";
+        if (srcUrl != null && !srcUrl.isEmpty()) {
+            try {
+                String urlBody = srcUrl;
+                int schemeEnd = urlBody.indexOf("://");
+                if (schemeEnd >= 0) {
+                    urlBody = urlBody.substring(schemeEnd + 3);
+                }
+                int atIndex = urlBody.indexOf('@');
+                if (atIndex >= 0) {
+                    urlBody = urlBody.substring(atIndex + 1);
+                }
+                String host = urlBody.split("[:/]")[0];
+                hostPart = host.replace(".", "_");
+            } catch (Exception e) {
+                hostPart = "unknown";
+            }
+        }
+        String suffix = UUID.randomUUID().toString().replace("-", "").substring(0, 4);
+        return "cam_" + hostPart + "_" + suffix;
+    }
+}

src/main/java/com/genersoft/iot/vmp/streamProxy/service/impl/StreamProxyServiceImpl.java

@@ -39,11 +39,12 @@ import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 
+import com.genersoft.iot.vmp.aiot.util.CameraCodeUtil;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.UUID;
 
 /**
  * 视频代理业务
@@ -79,41 +80,6 @@ public class StreamProxyServiceImpl implements IStreamProxyService {
     @Autowired
     private IAiRedisConfigService redisConfigService;
 
-    /**
-     * 从 RTSP URL 中提取 IP/Host 特征，生成可读的 camera_code
-     * 格式：cam_{host简写}_{4位随机}
-     * 例：rtsp://admin:pwd@192.168.1.100:554/stream → cam_192_168_1_100_a3f1
-     *     rtsp://10.0.0.5:554/live → cam_10_0_0_5_b2e4
-     * @param srcUrl RTSP 拉流地址
-     * @return 唯一的 camera_code
-     */
-    private String generateCameraCode(String srcUrl) {
-        String hostPart = "unknown";
-        if (srcUrl != null && !srcUrl.isEmpty()) {
-            try {
-                // 去掉 rtsp:// 前缀
-                String urlBody = srcUrl;
-                int schemeEnd = urlBody.indexOf("://");
-                if (schemeEnd >= 0) {
-                    urlBody = urlBody.substring(schemeEnd + 3);
-                }
-                // 去掉 user:pass@ 部分
-                int atIndex = urlBody.indexOf('@');
-                if (atIndex >= 0) {
-                    urlBody = urlBody.substring(atIndex + 1);
-                }
-                // 提取 host（去掉端口和路径）
-                String host = urlBody.split("[:/]")[0];
-                // 将 . 替换为 _ 作为可读标识
-                hostPart = host.replace(".", "_");
-            } catch (Exception e) {
-                hostPart = "unknown";
-            }
-        }
-        String suffix = UUID.randomUUID().toString().replace("-", "").substring(0, 4);
-        return "cam_" + hostPart + "_" + suffix;
-    }
-
     /**
      * 流到来的处理
      */
@@ -188,7 +154,7 @@ public class StreamProxyServiceImpl implements IStreamProxyService {
         // 自动生成 camera_code（最多重试3次避免冲突）
         int retryCount = 0;
         while (retryCount < 3) {
-            String cameraCode = generateCameraCode(streamProxy.getSrcUrl());
+            String cameraCode = CameraCodeUtil.generate(streamProxy.getSrcUrl());
             streamProxy.setCameraCode(cameraCode);
 
             streamProxy.setCreateTime(DateUtil.getNow());